Across
- 1. resources cannot be replaced
- 4. water not evenly distributed across earth
- 7. material that reflects or absorbs all of the light that strikes it
- 8. oil made fro small animals, algae and other organisms that lived in marine life.
- 9. fuels energy rich substances made from preserved remains of organisms
- 10. rock allows water to move through it and accumulate
- 11. removes salt and minerals from saltwater to make freshwater
- 14. any disturbance that transfers energy from place to place
- 16. all sound waves begin with it
- 19. non living solid substances made from elements
- 21. bending of waves due to a change in speed
- 24. material transmits some light making objects behind it appear blurry
- 25. travels faster through water than air
- 26. large and valuable mineral deposit extracted from the ground
- 27. an increase in the amplitude of a vibration that occurs when external vibrations match n objects natural frequency
- 28. wave bounces off and heads in a different direction
- 29. molten and semi-molten rock mixture found beneath earths surface
- 31. described as waves and a stream of particles
Down
- 2. burns cleaner than coal
- 3. describes your awareness of the energy of a sound
- 5. rays with shorter wavelengths than visible light
- 6. sound that bends around objects
- 12. mirror that is like the outside of a bowl
- 13. from the sun that is converted into thermal or electrical energy.
- 15. distance between the highest crest and the resting position
- 17. number of times a wave repeats in a given amount of time
- 18. energy source originating with the sun.
- 20. wave that travels in the same direction as the vibration
- 22. fossil fuel produced from peat
- 23. the amount of energy a sound wave carries per second thru a unit area
- 30. heavy metal formed along with all other atoms