Across
- 4. - a single kind of matter that is pure, having a specific makeup or composition and set of properties
- 9. - a change where energy is released, indicated by a heating of the area around it
- 12. - a measure of the average energy of motion of the particles of matter
- 15. - a change that produces one or more new substances
- 17. - the basic particle from which all elements are made
- 18. - a measure of how much mass is in a given volume
- 19. - a group of 2 or more atoms held together by chemical bonds
Down
- 1. - when the substances are so evenly mixed that you cannot see the different parts
- 2. - a change where energy is taken in (absorbed), indicated by a cooling of the area around it
- 3. - a change that alters the form or appearance of matter but does not make any substance in the matter into a different substance
- 5. - a measure of the force of gravity on an object
- 6. - the total energy of all the particles in an object
- 7. - a substance made of 2 or more elements chemically combined in a set ratio
- 8. – the ability to do work
- 10. - made of two or more substances
- 11. - shows the element in the compound and the ratio of the atoms
- 13. - a substance that cannot be broken down into any other substances by chemical or physical means
- 14. - anything that has mass and takes up space.
- 16. - the study of matter and how matter changes