Are sand batteries the future? Finland is showing the way: it has started using the world’s largest sand battery to store energy.
Warming Up
You may use English-language Internet sources to help you.
a The topic of this reading assignment is energy. Name three or more energy sources.
b Fahrenheit and Celsius are different ways to measure temperature.
Fill in the missing numbers in the following sentences:
Water freezes at …………….. degrees Celsius or …………. degrees Fahrenheit.
Your Reading Text
Read the article about a sand battery that is heating homes in Finland.
Words
a Find the words in the text.
b Connect the words and expressions that have the same meaning.
| 1. (to) store | a. covered with extra materials in order to stop heat, electricity, or sound from going into or out of it |
| 2. district | b. for the lowest price |
| 3. piped | c. the hot mist that forms when water boils |
| 4. heating plant | d. natural energy sources that can be produced endlessly |
| 5. boiler | e. not exactly; more or less |
| 6. pollution | f. a place where heat is produced and then delivered to houses and other buildings |
| 7. insulated | g. poisons, wastes, or other materials that make the air, water, etc. unclean and unhealthy |
| 8. container | h. to put or keep things in a special place for use in the future |
| 9. solar | i. something such as a box or a can or a bottle that is used to keep things in |
| 10. renewable sources | j. a specific area of a town or a country |
| 11. roughly | k. a tank used to heat and store a supply of water |
| 12. cheapest | l. transported from one place to another through a pipe |
| 13. steam | m. using the energy from the sun to produce electric power |
Questions About the Text
a What is the sand battery used for?
1 For creating heat.
2 For generating electricity.
3 For storing heat.
4 For wasting rocks.
b What is the problem with renewable energy sources?
1 They are too cheap and ruin the economy.
2 They are too expensive for most people.
3 They create a lot of air and water pollution.
4 They do not produce power all the time.
c Why was sand chosen as material for the battery? Choose all correct answers.
1 It can be heated to extreme termperatures.
2 It was the only material that was available.
3 It can stay hot for a long time.
4 It is just tiny rocks which can be found anywhere.
Follow-up Task
A writing or speaking assignment
a Answer the question if you think the new sand battery is a positive or a negative thing. Add two or more arguments to explain your answer.
b Write your answer down (~30-50 words). Or use your answer to prepare and give a short presentation to your classmates.
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