Physical Science Words

2. A subatomic particle with no charge.
8. The number of protons in the nucleus of an atom
10. The smallest particle of an element
11. Energy sent out into space by an energy source.
12. Matter that flows and takes the shape of the container it is in.
14. Elements that may be shiny, stretch and bend, but don’t break, and conduct heat and electricity well.
15. A repeating pattern.
17. Particles made of two or more atoms that are held together with bonds. Carbon dioxide (CO2), sugar (C6H12O6), water (H2O), oxygen (O2), and hydrogen (H2) are examples of molecules.
18. The center of an atom.

1. A subatomic particle that has a positive charge.
3. A colorless, odorless, gaseous element that makes up about 78% of Earth’s atmosphere.
4. A substance made of two or more different kinds of atoms. Carbon dioxide (CO2), sugar (C6H12O6), and water (H2O) are compounds. Oxygen (O2) and hydrogen (H2) are not compounds.
5. A characteristic that describes a substance, such as size, shape, and texture.
6. A fundamental substance that cannot be broken down by simple chemical and physical processes.
7. A group of carbon-based nutrients, such as sugars and starches
9. Matter that has a definite shape.
13. Matter that is shapeless and expands to fill any closed container it is placed in.
16. A subatomic particle with a negative charge.
17. Anything that has mass and takes up space.