Name _____________________________ | ![]() |
Date ___________________ |
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Energy Complete the puzzle. | ![]() |
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down 1. The chemical energy in fossil fuels is released by ____ the fossil fuels. |
down 2. Animals store their excess energy in this form. They can use this later on if they do not have enough energy. |
down 4. The direct conversion from sunlight into electricity can be accomplished by ____ panels. |
down 7. A type of potential energy that can be burned to supply heat, such as wood. |
down 8. A storage of energy invented by humans and that is filled with chemicals. |
down 10. A form of energy that is used in homes and is produced by the movement of electrons. |
down 11. ____ bulbs are more efficient than normal light bulbs. |
down 12. A measure of energy that is used for measuring the amount of energy in food. |
down 13. A form of energy that results from the attraction of objects that are made of iron. |
down 14. The most powerful type of energy that can be produced by changing nuclei instead of atoms through either fission or fusion. |
down 15. A type of fossil fuel that mostly consists of methane. (2 words) |
down 17. The movement of thermal energy through liquids and gases. |
down 18. One calorie is the amount of ____ that is needed to raise the temperature of one kilogram of water by one degree Celsius. |
down 19. Fossil fuels are formed from the remains of ____ and microorganisms that were buried millions of years ago. |
down 20. Humans get their energy from this. |
across 3. A type of fuel formed from the remains of plants or sea creatures millions of years ago. |
across 5. A form of energy that results from the attraction between two objects. This form of energy results in ocean tides. |
across 6. Cooled air that is heavier than the surrounding air will ____. |
across 9. One of the gases released into the air when fossil fuels burn. (2 words) |
across 11. Potential energy exists when an object is affected by this. Gravity and magnetism are examples of this. |
across 16. Light waves travel ____ than sound waves. |
across 17. A type of fossil fuel that is in the form of a soft rock and easily burns. |
across 18. A type of energy resource that is generated when water turns a turbine through pipes in a dam. |
across 21. The law of ____ of energy states that energy can not be created or destroyed. |
across 22. A form of energy that travels as waves through the air and some solids and liquids. |
across 23. Hydroelectric power plants use falling water to spin these. |
Answer Key
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