Across
- 4. this belt is located between mars and jupiter
- 6. this group of animals do not have backbones
- 7. the only star in the solar system
- 9. the main source of power in an electrical circuit
- 10. the process when water becomes air because of heat
- 13. organ in human body that absorb food
- 15. the group of animals which has both scales and lungs
Down
- 1. nutrition found in beef, chicken, fish
- 2. the closest planet to the sun
- 3. the process when air become water because of loss of heat
- 5. one of the type of rocks
- 8. moon is the ....... of the earth
- 11. this is the product of photosynthesis
- 12. animals who eat both plants and meats
- 14. the name of the system in human body which organs are heart and blood
- 16. the process in which plants make their own food using sunlight