Matter

Properties of all objects: They take up space They have mass Mass is how much there is of an object. It is related to how much something weighs, but mass and weight are two different things.

Objects that take up space and have mass are called matter Objects that take up space and have mass are called matter. All matter is made up of lots of tiny particles that are too small to be seen by the eye.

So, what are some examples of matter? People Trees Computers Air Water Houses Cars Paper Pencils EVERYTHING

Physical States of Matter

States of Matter Different forms of matter: Solid Liquid Gas State depends on 2 things: Particle (atoms/molecules) arrangement Particle motion

Solid Matter Fixed volume, Fixed shape Particles packed together tightly – usually in a repeating pattern Examples: wood, glass, salt, plastic

Solid Matter Particles vibrate in place remember – matter is always in motion! Want to separate the particles in a solid? BREAK it!

Liquid Matter Fixed volume, changing shape Particles can move from place to place Particles attracted to each other, but more easily separate Take the shape of the container it is put in Examples: milk, oil, honey, water

Gas Matter Volume changes, shape changes Examples: air, oxygen, water vapor Particles always push outward on container Spread to fill container if there is more space Or pack closer together when there is less space = PRESSURE from the pushing!

Pressure: Gases and Temperature Increased temperature (add heat) Particles speed up (more energy) = Volume increases! Decreased temperature (remove heat) Particles slow down (less energy) = Volume decreases!

Matter matters because it is (almost) everything. The End! Matter matters because it is (almost) everything.

References Investigating Science Pearson 9 Dercho