Across
- 6. Coal produces more … than oil and natural gas.
- 7. Biomass is reliable because it can be … when needed.
- 8. Oil, coal, and gas are all examples of …
- 10. Wood is just one example of a …
- 14. We can also generate … directly from sunlight.
- 15. Wave power is unreliable because the … of it can vary and, when there are no waves, no power is produced.
- 16. The … of the Earth is hot and this would be a useful source of energy.
- 17. When we burn coal and the light that we see have their origins in the energy from the Sun trapped by … hundreds of millions of years ago.
- 18. The turbine is linked by an axle to a … where a voltage is induced in conducting wires when they move in a magnetic field.
- 21. In 2018, around 85% of all people’s energy consumption in the world comes from …
- 22. … are used to collect energy transferred by light from the Sun.
- 24. The fuel for a nuclear power station is usually … , sometimes plutonium.
- 25. Many people think wind turbines spoil the appearance of the place where they are located and also …
Down
- 1. Wind is unreliable because the … of it can vary and on calm days no power is produced.
- 2. Accidents like those at Chernobyl in 1986 and Fukushima in 2011 can cause … material to be spread over a wide area.
- 3. The sources of energy, when we use them, they will soon be replaced.
- 4. At a tidal power station, electrical power is generated by …
- 5. For centuries, people have used the … of moving water to turn water wheels, which then drive machinery.
- 9. In nuclear … , four energetic hydrogen atoms collide and fuse (join together)to form an atom of helium.
- 11. Suitable hot underground rocks are usually found in places where there are active …
- 12. Inside a nuclear reactor, the radioactive decay of these materials is speeded up so that the energy they store is released much more quickly, this process is called as …
- 13. The … absorb the energy of the rays, and electricity is produced.
- 19. The energy supplies we use once are gone forever
- 20. The disadvantages of hydroelectric power plants are new reservoirs … and that might have been used for hunting and farming
- 23. The steam turns the blades of a … , transferring thermal energy into kinetic energy.