Across
- 2. A gas in the air made by plants
- 6. Prevents the water in cars from freezing
- 9. A test scientists conduct to make sure that results are accurate
- 10. Is data that show why a claim is true
- 11. A material that provides the body with energy
- 15. An acidic, sour white solid used in materials such as baking powder
- 17. Is a test that controls all but one variable
- 19. A tissue that contains food, which forms within a seed of a plant
- 20. A quality or trait of an individual or a thing
- 21. Starch made from corn
Down
- 1. the temperature at which a material changes from a liquid to a solid
- 3. Is what changes
- 4. When a solid becomes incorporated into a liquid to form a solution
- 5. A nonmetallic element on the periodic table
- 7. When two or more materials combine to make something new
- 8. Relating to or made of matter
- 12. Answers a science question
- 13. A small piece of a solid material with a 3-D shape
- 14. A plant that grows under water
- 15. A mixture of at least two metals or something else
- 16. The part of a seed that will grow into a plant
- 18. A liquid mixture of the solute and the solvent