Science crossword

4. A usual reversible change is physical properties.
8. Anything that takes up space.
10. The amount of space occupied by matter.
11. The total of protons neutrons and electrons within and object.
14. a characteristic of a particular substance that can be observed in a chemical reaction.
16. The form of energy that is transferred at different temperatures between 2 objects.
17. The intermolecular attractive force acting between two adjacent portions of a substance, particularly of a solid or liquid
18. An attraction between atoms.
21. The ability to do work
22. Something formed by the union of 2 or more elements.

1. When 2 or more atoms or molecules get turned into a new substance.
2. A group of atoms bonded together.
3. A substance that cant break down into another substance.
5. he composition and chemical properties of a substance.
6. taking place or being formed by absorbing heat.
7. Makes up everything.
9. he chemical substances which are formed due to a chemical reaction between two or more chemical substances
12. The rearrangement of 2 or more atoms or molecules that result in either a new substance or a change is mass.
13. Measure of hotness and coldness.
15. The release of heat.
19. a characteristic of a substance that can be observed or measured without changing the identity of the substance.
20. The starting material that changes in a chemical reaction and creates a new product