Across
- 3. Everything that produces change or transforms objects.
- 10. The kind of energy released in thunderstorms, or by batteries.
- 11. Breaking a plate or cutting paper are types of .....
- 13. Energy source that can not be replaced (or would take millions of years to replace).
- 15. At -15 degrees Celsius, water is in ..... state.
- 18. The kind of energy that is emitted by a radiator.
- 22. The amount of space an object occupies.
- 25. A way to separate solid and liquid solutions by boiling them until the liquid changes into gaseous state.
- 27. Trees and plants used for producing thermal and kinetic energy.
- 28. The mediums that let all light pass through them.
- 29. At +112 degrees Celsius, water is in ..... state.
- 30. The wind, water currents and falling objects are types of .... energy.
- 31. The thermal energy emitted from the earth.
- 33. If you want to use the energy from the sun, you can put these rectangular things on your roof.
- 36. Playing the trumpet released ________ energy.
- 37. Sources of energy that are unlimited, or are easy to replace.
- 38. The white turbines used for producing electrical energy from the wind.
- 39. Two or more substances that together have different characteristics than they have on their own.
- 41. ...... changes are changes where new substances are formed.
- 42. Anything that has volume and mass.
Down
- 1. When light travels from one material to another, loses speed and changes direction.
- 2. state change, but the substances involved stay the same.
- 4. A way to separate small, solid particles from water or air.
- 5. Gold, silver, oxygen, nitrogen, sugar and water are examples of .... substances.
- 6. The tyoe of mechanical energy transmitted when someone is playing a guitar.
- 7. When you see a rainbow, you are looking at this light phenomenon.
- 8. The light phenomenon that occurs when you see yourself in a mirror.
- 9. We measure mass in....
- 12. A physical change that occurs in metals on hot and sunny days.
- 14. Energy that is stored in matter, for example in our bodies.
- 16. The energy that is emitted from sources of light, for instance the sun or lamps.
- 17. A chemical reaction in which heat makes oxygen react with a fuel, and makes it burn.
- 19. When a microorganism like yeast decomposes sugar into carbon dioxide and alcohol.
- 20. A thing made of iron that you can use for burning biomass in your home.
- 21. The amount of matter in an object.
- 23. The amount of mass in a given volume.
- 24. .....changes are changes where the form
- 26. At +10 degrees Celsius, water is in ..... state.
- 32. The mediums that doesn't allow any light to pass through.
- 34. A chemical reaction in which oxygen reacts with another substance and forms a new substance called oxide.
- 35. The mediums that only let some of the light pass through them (the other light is absorbed).
- 40. We measure the volume of liquids in ....