Across
- 2. When a fire burns, you can see the light and _____ the warmth it produces.
- 5. Sources of light are also sources of heat. Right or wrong?
- 6. Light is the only form of energy the sun radiates. True or nope?
- 10. ______ is one way heat is transferred. Radiated heat warms the objects it reaches.
- 13. A ______ is the place from which something begins.
- 14. Light ______, or spreads outward, from the object that gives it off.
- 15. Not all heat comes from the sun. When energy changes form, some energy is always given off in the form of _____.
- 16. Light ______, or bounces off objects.
- 18. _____ energy is changed to light and heat, like when you turn on a lamp.
Down
- 1. Refracted light ______ direction.
- 3. ______ colored objects reflect light.
- 4. An object ______, or takes in, some of the light that hits it.
- 5. When light hits certain objects, it ______, or bends.
- 7. When light hits an object, the object absorbs some of the light's energy. The object's ______ energy increases.
- 8. A dark rock sitting in the sun will feel warmer than a light rock. True or nope?
- 9. Burning logs in a fire radiate light _____.
- 11. ______ colored objects absorb light.
- 12. A ______ change is happening as logs burn in a fire. These kinds of changes can also produce light and heat, like electrical changes.
- 16. Other forms of radiated energy are ______ waves, microwaves, infrared waves and x-rays.
- 17. A ______ pond or mirror reflect light better than other kinds of objects.