Reading Lab

IELTS Academic Reading Practice Pack 60

A full 60-minute Academic Reading mock with three source-grounded passages, 40 questions, answer key coverage, and doctrine QA traceability.

Question count

Time allowed

60 min

Passages

Academic ReadingFull MockIELTS PracticeQA Approved

Exam panel

You have 60 minutes including answer transfer time. Submit once at the end or let the timer finish the exam automatically.

Time remaining

60:00

0 / 40 answers filled

Write only what the question requires. One extra word can still lose the mark.

After submission, you will see your raw score, estimated Academic Reading band, and the correct answers for every question.

What this reading pack trains

This set is built around diatoms and the memory of freshwater, regulatory sandboxes and the problem of learning safely, storing heat for industry with 7 official IELTS Reading task types spread across three passages.

IELTS Academic Reading Practice Pack 60 is designed as a full Academic Reading simulation, not just a passage archive. The three texts move from a more accessible opener into denser, more inference-heavy material so the burden rises in the same direction students expect in a real test.

Across this pack, you work through roughly 2,305 words on Diatoms and the memory of freshwater; Storing heat for industry; Regulatory sandboxes and the problem of learning safely. That mix matters because IELTS Reading rewards candidates who can adjust between topic vocabulary, paraphrase recognition, and question-discipline rather than relying on one search habit.

Use this pack when you want one serious timed session, then review every wrong answer against the exact trap type. A strong post-test habit is to check whether the miss came from rushing, weak paraphrase tracking, unstable Not Given logic, or ignoring the word-limit instruction.

Inside the pack

Use the pack as one timed attempt, then return for deliberate review.

Domains

diatoms and the memory of freshwater · regulatory sandboxes and the problem of learning safely · storing heat for industry

Question types

Matching Headings · Matching Sentence Endings · Multiple Choice · Sentence Completion · Summary Completion · True/False/Not Given · Yes/No/Not Given

If you want more full mocks after this one, go back to the Reading pack library. If you need a broader exam routine, pair one reading session with Listening practice or IELTS Writing repair work.

Passage 1

Diatoms and the memory of freshwater

An academic IELTS passage on diatoms and the memory of freshwater, opening with diatoms are microscopic algae that live wherever there is enough moisture and light, including rivers, lakes, wetlands and damp soils.

A.A. Diatoms are microscopic algae that live wherever there is enough moisture and light, including rivers, lakes, wetlands and damp soils. Their most distinctive feature is a glass-like cell wall made of silica, known as a frustule, whose shape varies between species. To a casual observer a sample of lake mud may look like a brown smear, but under a microscope it can contain thousands of these patterned remains. Because the frustules resist decay better than many soft tissues, they can persist long after the living algae have disappeared. This persistence is why a lake bed can hold a biological record even when no one took regular measurements at the time.

B.B. This durability makes diatoms useful to ecologists and environmental historians. Different species prefer different conditions: some tolerate high nutrient levels, some favour low salinity, some grow best in acidic water and others respond to light, temperature or current speed. A change in the relative abundance of species can therefore suggest a change in water chemistry or habitat. Diatoms do not act like a single universal gauge, but as a community whose composition reflects several environmental pressures at once. That community response can be more informative than the presence of one species alone, because several species may move together when the habitat changes.

C.C. Modern monitoring often collects living or recently deposited diatoms from stones, sediment, plants or artificial surfaces. Analysts identify the species present and may combine them into an index that describes ecological condition. This approach can reveal long-term stress that a one-off chemical test might miss. A water sample taken on Tuesday can show what was dissolved in the water at that moment; a diatom community may reflect the conditions under which organisms have been growing for weeks or months. This makes biological monitoring useful where pollution is intermittent or where managers need evidence of repeated stress rather than a single exceedance.

D.D. Sediment cores extend the same logic into the past. As diatoms die, their frustules sink and become part of the lake bed. Deeper layers usually represent older periods, although storms, erosion or burrowing animals can disturb the sequence. By comparing fossil diatom assemblages with modern reference collections, scientists can infer whether a lake was once clearer, more acidic, richer in nutrients or more affected by salt. Such reconstructions are especially valuable where written records are short or absent. They can also reveal whether a recent decline is unusual or whether similar shifts occurred before major human settlement around the lake.

E.E. The method is powerful, but it is not automatic. Similar-looking species may require expert identification, and laboratories may disagree if taxonomic standards are not consistent. Some species respond to several variables at once, making it difficult to assign a single cause to a change. Human activity may also interact with natural variation. A shift in diatoms might be linked to fertilizer runoff, but it could also reflect changing rainfall, water depth or the recovery of vegetation around the lake. Interpretation therefore requires a chain of reasoning, not simply the mechanical matching of one species to one cause.

F.F. For this reason, diatom evidence is strongest when it is combined with other observations. Chemical measurements, land-use history, pollen, charcoal particles, invertebrate remains and hydrological records can all help test an interpretation. A rise in nutrient-tolerant diatoms, for example, is more convincing as evidence of eutrophication if it coincides with farming expansion, increased phosphorus levels or a loss of oxygen-sensitive organisms. The aim is not to force every signal into one story, but to build a pattern from independent clues. When the clues disagree, the disagreement is also useful, because it may show that a lake responded differently in shallow margins, deep water or inflowing streams.

G.G. Diatoms therefore occupy a useful middle ground in environmental study. They are tiny enough to be overlooked, yet abundant enough to provide detailed evidence. They record ecological conditions without requiring people in the past to have measured those conditions directly. At the same time, they remind researchers that indicators are not answers by themselves. A diatom slide is a record of biological response; turning that response into history requires comparison, caution and a clear understanding of the lake being studied.

True/False/Not Given

Questions 1-6

Do the following statements agree with the information given in Reading Passage 1? Write TRUE if the statement agrees with the information, FALSE if the statement contradicts the information, or NOT GIVEN if there is no information on this.

1. Diatom frustules are made of silica and can remain after the living algae have gone.

2. Every diatom species responds to pollution in the same way.

3. One chemical water sample can show conditions over several months.

4. Sediment cores can help researchers investigate periods before written records existed.

5. Diatom evidence can identify the exact cause of every change in a lake.

6. Taxonomic consistency can affect how confidently diatom data are compared.

Sentence Completion

Questions 7-13

Complete the sentences below. Choose ONE WORD ONLY from the passage for each answer.

7. The glass-like cell wall of a diatom is called a ________.

8. A diatom community may show environmental pressures through its species ________.

9. Modern monitoring may collect diatoms from stones, sediment, plants or artificial ________.

10. Older lake periods are often represented by deeper layers in sediment ________.

11. Scientists compare fossil assemblages with modern reference ________.

12. A rise in nutrient-tolerant species is stronger evidence if it coincides with increased ________ levels.

13. A diatom slide records biological ________, not a complete answer by itself.

A. Electricity storage receives much public attention, but many industrial processes need energy mainly as heat. Food processing, paper production, chemicals, bricks, glass and metals often require steam or high-temperature air at predictable times. If these processes are to use more renewable electricity, they need ways to bridge the gap between variable power supply and steady heat demand. Thermal energy storage, sometimes described informally as a thermal battery, addresses this problem by storing energy as heat rather than as electrochemical charge. The idea is old in principle, but it has gained new attention as power systems add more wind and solar generation. For industrial users, the attraction is not only environmental. Storage can turn low-price electricity or recovered waste heat into a more dependable supply of useful heat.
B. Thermal storage can take several forms. Sensible-heat systems raise the temperature of a material such as water, rock, concrete, sand, oil or molten salt. Latent-heat systems use phase-change materials that absorb or release energy as they melt and solidify. Thermochemical systems store energy in reversible chemical reactions, although these are usually more complex. In each case, the central idea is that heat is charged into a medium when energy is available and discharged later when a process requires it. The choice of medium affects cost, size, charging speed, maximum temperature and the amount of energy that can be recovered usefully.
C. Industrial heat is difficult to decarbonize because it is not one uniform demand. A dairy plant may need moderate-temperature steam for cleaning and pasteurization. A cement kiln or steel process may require much higher temperatures and continuous operation. Some factories can pause heat demand for a few hours; others cannot risk product quality or safety. Storage systems must therefore be matched to temperature range, discharge rate, duration, space constraints and the consequences of interruption. A design that works well for batch food processing may be irrelevant to a kiln that must run continuously for product quality and equipment safety. This variety explains why assessments often begin with a heat map of the site rather than with a preferred storage technology.
D. When matched well, thermal storage can provide operational flexibility. A factory may charge a storage system when electricity is cheap, abundant or low-carbon, then draw heat during expensive peak periods. This can reduce pressure on the grid while helping the factory maintain production. Thermal storage can also recover waste heat from one part of a site and use it elsewhere. In district systems, stored heat may help balance daily or seasonal differences between supply and demand. These uses are not identical, but they share a logic: storage creates time flexibility where heat production and heat consumption do not naturally coincide.
E. Yet storage should not be treated as a plug-in cure. Heat losses increase when insulation is poor or storage duration is long. Some materials are inexpensive but bulky; others are compact but costly or technically demanding. Very high temperatures can create material-stress problems, while low-grade heat may be difficult to reuse unless there is a nearby demand at the right temperature. Safety rules, maintenance skills and integration with existing boilers, pipes and controls can matter as much as the storage material itself. Even a technically efficient store can fail commercially if operators see it as difficult to maintain or risky to connect to production lines.
F. Thermal storage also competes and cooperates with other decarbonization options. Electric boilers, heat pumps, biomass, hydrogen, direct solar heat and process redesign may each be suitable in different contexts. A heat pump can be highly efficient at moderate temperatures, while hydrogen may be discussed for processes where direct electrification is hard. Thermal storage is most attractive when it improves the economics or reliability of these options rather than being viewed as a universal replacement. In some cases it may allow a smaller electric boiler to serve a larger heat load by charging over a longer period.
G. The larger lesson is that industrial decarbonization is a systems problem. Engineers may focus on temperature and efficiency, but managers also examine downtime, contracts, maintenance and the risk of changing a process that already works. A storage device may be impressive in a laboratory, but its value depends on electricity prices, factory schedules, local infrastructure, material availability and the willingness of operators to change routines. Successful projects begin by mapping the heat demand in detail, then asking where storage creates genuine flexibility. Thermal batteries may become important, but not because they resemble electrical batteries. Their importance lies in fitting the neglected heat side of the energy system.

Passage 2

Storing heat for industry

An academic IELTS passage on storing heat for industry, opening with electricity storage receives much public attention, but many industrial processes need energy mainly as heat.

A.A. Electricity storage receives much public attention, but many industrial processes need energy mainly as heat. Food processing, paper production, chemicals, bricks, glass and metals often require steam or high-temperature air at predictable times. If these processes are to use more renewable electricity, they need ways to bridge the gap between variable power supply and steady heat demand. Thermal energy storage, sometimes described informally as a thermal battery, addresses this problem by storing energy as heat rather than as electrochemical charge. The idea is old in principle, but it has gained new attention as power systems add more wind and solar generation. For industrial users, the attraction is not only environmental. Storage can turn low-price electricity or recovered waste heat into a more dependable supply of useful heat.

B.B. Thermal storage can take several forms. Sensible-heat systems raise the temperature of a material such as water, rock, concrete, sand, oil or molten salt. Latent-heat systems use phase-change materials that absorb or release energy as they melt and solidify. Thermochemical systems store energy in reversible chemical reactions, although these are usually more complex. In each case, the central idea is that heat is charged into a medium when energy is available and discharged later when a process requires it. The choice of medium affects cost, size, charging speed, maximum temperature and the amount of energy that can be recovered usefully.

C.C. Industrial heat is difficult to decarbonize because it is not one uniform demand. A dairy plant may need moderate-temperature steam for cleaning and pasteurization. A cement kiln or steel process may require much higher temperatures and continuous operation. Some factories can pause heat demand for a few hours; others cannot risk product quality or safety. Storage systems must therefore be matched to temperature range, discharge rate, duration, space constraints and the consequences of interruption. A design that works well for batch food processing may be irrelevant to a kiln that must run continuously for product quality and equipment safety. This variety explains why assessments often begin with a heat map of the site rather than with a preferred storage technology.

D.D. When matched well, thermal storage can provide operational flexibility. A factory may charge a storage system when electricity is cheap, abundant or low-carbon, then draw heat during expensive peak periods. This can reduce pressure on the grid while helping the factory maintain production. Thermal storage can also recover waste heat from one part of a site and use it elsewhere. In district systems, stored heat may help balance daily or seasonal differences between supply and demand. These uses are not identical, but they share a logic: storage creates time flexibility where heat production and heat consumption do not naturally coincide.

E.E. Yet storage should not be treated as a plug-in cure. Heat losses increase when insulation is poor or storage duration is long. Some materials are inexpensive but bulky; others are compact but costly or technically demanding. Very high temperatures can create material-stress problems, while low-grade heat may be difficult to reuse unless there is a nearby demand at the right temperature. Safety rules, maintenance skills and integration with existing boilers, pipes and controls can matter as much as the storage material itself. Even a technically efficient store can fail commercially if operators see it as difficult to maintain or risky to connect to production lines.

F.F. Thermal storage also competes and cooperates with other decarbonization options. Electric boilers, heat pumps, biomass, hydrogen, direct solar heat and process redesign may each be suitable in different contexts. A heat pump can be highly efficient at moderate temperatures, while hydrogen may be discussed for processes where direct electrification is hard. Thermal storage is most attractive when it improves the economics or reliability of these options rather than being viewed as a universal replacement. In some cases it may allow a smaller electric boiler to serve a larger heat load by charging over a longer period.

G.G. The larger lesson is that industrial decarbonization is a systems problem. Engineers may focus on temperature and efficiency, but managers also examine downtime, contracts, maintenance and the risk of changing a process that already works. A storage device may be impressive in a laboratory, but its value depends on electricity prices, factory schedules, local infrastructure, material availability and the willingness of operators to change routines. Successful projects begin by mapping the heat demand in detail, then asking where storage creates genuine flexibility. Thermal batteries may become important, but not because they resemble electrical batteries. Their importance lies in fitting the neglected heat side of the energy system.

Matching Headings

Questions 14-19

Reading Passage 2 has seven paragraphs, A-G. Choose the correct heading for paragraphs B-G from the list of headings below. There are more headings than paragraphs.

List of Headings

14. Paragraph B

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

15. Paragraph C

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

16. Paragraph D

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

17. Paragraph E

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

18. Paragraph F

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

19. Paragraph G

i. How storage fits among other heat-reduction strategies
ii. Operational flexibility for factories and energy networks
iii. Why electrical batteries solve the industrial heat problem
iv. Main types of heat storage media and mechanisms
v. The importance of system fit rather than device novelty
vi. A varied demand that prevents simple solutions
vii. Why storage materials are no longer needed
viii. Technical and site-specific limits to storage use
ix. A history of industrial steam production

Summary Completion

Questions 20-23

Complete the summary below. Choose ONE WORD ONLY from the passage for each answer.

20. Thermal energy storage stores energy as ________ rather than electrochemical charge.

21. Latent-heat systems use materials that change ________.

22. A factory may charge a storage system when electricity is cheap or ________.

23. Poor ________ can increase heat losses during storage.

Multiple Choice

Questions 24-26

Choose the correct letter, A, B, C or D.

24. What is the main point made in paragraph C?

25. According to paragraph E, why may some storage materials be unsuitable?

26. The writer suggests that thermal storage is most useful when it

Passage 3

Regulatory sandboxes and the problem of learning safely

An academic IELTS passage on regulatory sandboxes and the problem of learning safely, opening with when new technologies develop faster than existing rules, regulators face an uncomfortable choice.

A.A. When new technologies develop faster than existing rules, regulators face an uncomfortable choice. If they apply old regulations too strictly, they may block useful innovation. If they wait too long, they may allow risks to spread before anyone understands them. Regulatory sandboxes were created as one response to this dilemma. They allow selected firms or public bodies to test an innovation under regulatory supervision, usually for a limited period, with clear conditions and reporting requirements. The approach has appeared in areas such as financial technology, energy regulation and, more recently, debates about artificial intelligence.

B.B. The metaphor of a sandbox is attractive because it suggests a protected space for experiment. In practice, however, a sandbox is not simply a place where rules disappear. Participants may receive guidance, waivers, modified requirements or closer supervisory contact, but core legal duties often remain. The point is not to excuse innovators from responsibility. It is to let regulators observe how an emerging product, service or business model behaves in a controlled setting before deciding whether wider rule changes are needed. That observation may include consumer complaints, technical failures, unexpected costs or evidence that existing rules are poorly matched to the innovation.

C.C. Supporters argue that sandboxes create learning on both sides. Innovators gain earlier contact with regulators and may understand compliance expectations more clearly. Regulators gain evidence about risks that cannot be seen from policy papers alone. In financial technology, energy systems, health data and artificial intelligence, this kind of supervised experimentation can reveal practical problems in identity checks, consumer consent, data security, liability or market access. The learning is especially valuable when technical novelty makes traditional approval processes slow or uncertain. It can also help regulators ask better questions, since contact with prototypes often exposes operational details that broad consultation misses, including how users actually behave when safeguards meet commercial incentives.

D.D. The model also has weaknesses. Selection into a sandbox can favour firms with the resources to prepare strong applications, leaving smaller or less connected innovators outside. Consumers may misunderstand participation as an official guarantee that a product is safe. Confidentiality can protect commercially sensitive information, but too much secrecy reduces public accountability. If regulators become too close to firms they supervise, the sandbox may encourage regulatory capture rather than independent oversight. The danger is not only corruption; it can also be a subtler dependence on the assumptions, vocabulary and priorities of the firms involved.

E.E. Design choices therefore matter. A credible sandbox must define who can apply, which rules may be adjusted, what data must be reported, how participants will be monitored and what happens when the test ends. It should also explain how harms will be addressed if they occur during the trial. Without these boundaries, the sandbox may become a public-relations label rather than a disciplined learning tool. With them, it can make experimentation more transparent than ordinary unregulated trial and error. Clear exit rules are especially important, because a temporary experiment should not quietly become a permanent exception without public justification.

F.F. A further difficulty is translating individual experiments into general policy. A successful trial by one company does not prove that the same approach will work at scale, in another market or under less careful supervision. Regulators must decide which lessons are specific to the participant and which justify broader regulatory change. They also need the capacity to analyse technical evidence, compare trials and update rules. A sandbox that generates reports no one can use is merely a slow way of postponing decisions. The administrative work after a trial is therefore as important as the permission to begin it, especially where public safety or consumer rights are involved.

G.G. Public trust depends on how openly these limits are acknowledged. Citizens may accept experimentation when the purpose is clear, the risks are bounded and the results feed into accountable decisions. They are less likely to accept it if sandboxes appear to create private privileges for favoured firms. This is why some commentators argue for published eligibility criteria, independent evaluation and clear routes for complaints. Transparency does not remove risk, but it helps distinguish learning from quiet deregulation. It also lets outsiders ask whether the public benefits of experimentation justify the private advantages granted to participants.

H.H. Regulatory sandboxes are therefore neither a cure for regulatory delay nor a threat in themselves. Their value lies in turning uncertainty into supervised evidence. Used well, they allow regulators to learn before a technology becomes too widespread to govern effectively. Used poorly, they can delay hard choices, obscure responsibility or give innovation a legitimacy it has not earned. The central question is not whether sandboxes are pro-innovation or anti-regulation, but whether they improve the quality of public judgement under uncertainty. A well-designed sandbox should leave behind more than a successful pilot; it should leave clearer evidence about what should be allowed, limited, redesigned or refused. In that sense, the sandbox is less a shortcut around regulation than a method for making regulation more informed before choices become locked in by markets.

Yes/No/Not Given

Questions 27-31

Do the following statements agree with the claims of the writer in Reading Passage 3? Write YES if the statement agrees with the claims of the writer, NO if the statement contradicts the claims of the writer, or NOT GIVEN if it is impossible to say what the writer thinks about this.

27. Regulatory sandboxes are intended to let innovators ignore all legal duties while testing a product.

28. The writer believes sandboxes can help regulators learn from practical evidence rather than policy papers alone.

29. Every country now uses regulatory sandboxes for artificial intelligence.

30. The writer thinks public accountability may suffer if too much sandbox information remains confidential.

31. A successful sandbox trial by one firm proves that the same approach should be adopted across all markets.

Matching Sentence Endings

Questions 32-36

Complete each sentence with the correct ending, A-G, below. Write the correct letter, A-G. Each ending may be used once only.

32. A regulatory sandbox

33. Selection into a sandbox

34. Confidentiality

35. Translating experiments into policy

36. Public trust in sandbox experimentation

A. can reduce public accountability if it becomes excessive.
B. allows regulators to observe innovation under controlled conditions.
C. may advantage firms with the resources to prepare strong applications.
D. requires regulators to distinguish participant-specific results from general lessons.
E. depends on clear purpose, bounded risk and accountable use of results.
F. proves that innovation should always be allowed before rules are written.
G. removes the need for complaints or independent evaluation.

Multiple Choice

Questions 37-40

Choose the correct letter, A, B, C or D.

37. What is the writer’s main purpose in paragraph B?

38. Which risk does the writer associate with regulator-firm closeness?

39. What does the writer say is needed after individual experiments?

40. Which statement best summarises the writer’s position?