Across
- 3. - A mixture of gases that surrounds the Earth and is necessary for humans and animals to breathe
- 5. - A form of energy that travels through waves and allows us to see objects and colors
- 6. - The planet we live on, known as the third planet from the sun
- 7. - Solid, naturally occurring substances made up of minerals
- 8. - Objects that can attract or repel other objects made of certain materials
- 12. - The act of moving or changing position
- 14. - Extinct reptiles that lived millions of years ago
- 15. - Different wavelengths of light that can be seen by the human eye
- 16. - The ability to do work or cause change
Down
- 1. - Living organisms that can make their own food through photosynthesis
- 2. - The force that pulls objects towards each other
- 4. - A device used to magnify small objects and organisms.
- 9. - Living organisms that can move, eat, and reproduce
- 10. - A form of energy that travels through waves and can be heard by humans and animals
- 11. - The state of the atmosphere at a specific time and place
- 13. - Small animals with three body segments and six legs