How to classify matter?

Science 3B Unit 1 Lesson 3

Drawer video

Classifying means. . .

• Sorting things into similar groups.

We can sort matter into. . .

• Solid• Liquids • Gases • Even weird stuff like plasma!

When we talk about solids, liquids and gases. . .

• We are talking about states of matter.

Each state of matter. . .

• Can be described by its particles.• Particles are pieces that make it up.

Solids

• Solids are made of parts that are packed close together

• The parts don’t move too much.• Solids have a certain shape that they stay in.

http://commons.wikimedia.org/wiki/File:Structure_matiere_echelle.svg

Liquids

• Are made of parts that are loosely packed. They can move around.

• Liquids take the shape of the container they are in.

• Liquid particles can slide around.

Liquid video

• http://commons.wikimedia.org/wiki/File:LotuseffectAnimationv2.ogg

Gases

• Gases will take the shape of any container that you put them in.

• Pieces that make up gases fly around in every direction, they never sit still

• This is good news! That means air will always be moving around our nose!

Smoke Video

• http://upload.wikimedia.org/wikipedia/commons/4/4f/Chimney_smoke_video_dec_09.ogg

Weird states

• Plasma is another state that we sometimes see.