Across
- 2. a state of matter when you can pour it
- 4. a combination of two or more things
- 6. to combine to or more things
- 7. of matter different forms of matter that include solid, liquid, and gas
- 8. a state of matter when it is steam
- 9. a type of gas that animals use to breathe and that plants release
- 12. to pay close attention to something
- 14. a test used to discover new information about a question
- 16. a name for people in the past who studied the combination of chemicals
- 17. a very tiny thing-something too small to be seen
Down
- 1. information that can be used to support or reject an idea
- 3. a material that has specific properties
- 5. when one substance mixes with another and it looks like it when it disappears
- 6. anything that takes up space; can be in different forms such as solid, liquid, or gas
- 10. something you can observe about an object or material
- 11. reaction, a process where one or more substances from a new substance
- 13. a special kind of mixture where you cannot tell the different parts from each other
- 15. a pretend version of something that scientists use when the real thing is too big or small
- 16. a substance that is usually sour like vinegar or orange juice