Across
- 1. Animal that uses sounds to navigate
- 5. This technology is used to find submerged objects
- 8. Device that converts mechanical energy into electrical energy
- 9. Most common bleaching agent is?
- 13. Oil rises in a wick due to?
- 14. This material is used in pencils
- 17. ---- absorbs ultraviolet rays in the atsmosphere
- 18. Device used to convert AC to DC
- 20. Study of planetary objects is called?
- 21. Alfred Nobel created this and he regretted it
- 23. Study of motion of air and gases is?
- 25. An example for a non-renewable resource
- 26. Longitudinal cannot travels through?
Down
- 2. Shape of our milky way galaxy is
- 3. Device that converts chemical energy to electrical energy
- 4. First manned space shuttle to moon is?
- 6. Larvae of a frog is called?
- 7. Sky appears blue because of ---- property of light
- 10. Measure to sound level is?
- 11. Newtons first law of motion is called
- 12. This instrument is used to see distant objects
- 15. This device is used in submarines to view the objects on the surface
- 16. First person in space is
- 19. First science Nobel Laurette in India is
- 22. Ancient study to chemicals is?
- 24. Gold (an element)