1. 4 States of Matter

2. Matter Matter = anything with MASS and VOLUME Matter changes to different states if enough heat is added or taken away. All matter is made of particles (atoms) that are always moving.

3. Solids – Definite Shape – Definite Volume – Particles (atoms) are packed tightly together in a pattern – Particles vibrate in fixed positions. They vibrate/move while staying in the same spot. – Particles have low kinetic energy

4. Liquids – Indefinite shape (takes the shape of the container) – Definite Volume – Particles can move around each other – Particles have medium Kinetic Energy

5. Gases – Indefinite shape – Indefinite volume (fills all space in a container) – Shape and volume changes depending on the container. – Particles move about freely and do not usually touch each other – Particles have high kinetic energy. This means they move around very fast!

6. Plasma – Plasma is very similar to a gas except that it exists only at extremely high temperatures. – Like a gas, plasma does NOT have a definite shape or volume. – 99% of the matter in the UNIVERSE is plasma, but it is rare to find plasma on Earth. – Stars, the sun, lightning, and some light bulbs are plasma.