1. Matter

2. 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.

3. 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.

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

5. Physical States of Matter

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

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

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

9. 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

10. 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!

12. 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!

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

14. References
Investigating Science Pearson 9
Dercho