| A | B |
|---|
| matter | everything that takes up space |
| atoms | tiny particles that make up matter |
| snowflakes | water crystals |
| six | number of sides or points on a snowflake |
| elements | things that are made up of the same kind of atoms |
| electrons | parts of an atom that spin around the nucleus |
| nucleus | the center of an atom made up of protons and neutrons |
| H2O | A water molecule is made of two atoms of hydrogen and one atom of oxygen |
| temperature | a property of matter |
| shape | a property of matter |
| color | a property of matter |
| weight | a property of matter |
| hardness | a property of matter |
| texture | the way something feels |
| hydrogen | lightest matter on Earth |
| helium | very light matter often used to fill baloons |
| lead | a heavy metal |
| osmium | a rare metal that is the heaviest matter on Earth |
