Phases of Matter Review Brookville Intermediate School 7th grade Science Ms. Drake

Macro versus Microscopic View Macroscopic- visible to naked eye: large enough to be seen and examined without the aid of magnifying equipment Microscopic- invisible without microscope: invisible without the use of a microscope Definitions from Bing.com

Phases of Matter Solid Liquid Gas Plasma

Solid Solids have a definite shape and volume. Particles in a solid are tightly packed, usually in a regular pattern. Solids particles vibrate (jiggle) but generally do not move from place to place

Liquid Liquids have an almost-fixed volume, but no set shape. Particles in a liquid are close together with no regular arrangement. Liquids particles vibrate, move about, and slide past each other.

Gas Gas has no fixed shape and will take on the shape of the space available. Particles in a gas are well separated with no regular arrangement. Gas particles vibrate and move freely at high speeds.

Plasma Plasmas or ionized gases can exist at extremly high temperatures. Plasma, like gas, does not have definite shape or volume. Unlike gases, plasmas may self-generate magnetic fields and electric currents. Plasmas have electric charges, so plasma can conduct electricity. Two examples of plasma are the charged air produced by lightning, and a star such as our own sun.

Macroscopic View

Microscopic View Animation link