1.
The smallest part of an element. Everything is made of atoms.
2.
A group of atoms joined together. Water is a molecule made of hydrogen and oxygen.
3.
Anything that takes up space and has mass.
4.
A state of matter with tightly packed particles. Keeps its shape.
5.
A state of matter with loosely packed particles. Takes the shape of its container.
6.
A state of matter with particles that spread out. Can fill any space.
7.
A material made of long chains of molecules. Slime and plastic are polymers.
8.
Two or more substances combined without a chemical reaction. You can separate them.
9.
A mixture where one substance dissolves into another.
10.
When a substance mixes evenly into a liquid.
11.
Combining two liquids that don’t usually mix, like oil and water.
12.
The compactness of stuff in space or the amount of material that is in a set size.
