Physical Science

1
Physical Science

• All about Matter

2
What is Matter?

• Matter is anything that takes up space and has
  mass.
• You probably use different items that are made of
  matter like crayons, pencils, of matter have
  different color, size, erasers, and paper.
• Many kinds shape, and weight.

3
What is Mass?

• Mass is the measure of how much matter there is
  in an object
• All matter takes up space and has mass.
• You yourself take up space and have mass so you
  are made of matter too.

4
States of Matter

• Matter can be found in different forms.
• The three states of matter are solid, liquid, and
  gas.
• A fish tank is a good example of all three
  matters.

5
Solid

• Solids have a shape of their own.
• The shape of most solids does not change.
• Solids are found in many different shapes.

6
Liquid

• Unlike solids, liquids never have a shape of
  their own.
• They always have the same shape as their
  container.
• When you drink milk through a straw, you can see
  milk change shape as it moves through the straw.

7
Gas

• When you are done with all the milk in your
  glass, what do you think will fill the glass and
  the straw?
• Both will be filled with a matter called gas.
• Like liquids, gases also have the same shape as
  their container.

8
Physical Change

• Matter can change from one state to another and
  it is called Physical Change.
• Changes in size and shape are also physical
  changes.
• In a physical change, you have the same kind of
  matter before and after the change.

9
Freezing Point

• Ice starts to form when water is cooled to zero
  degrees Celsius. This temperature is called
  Freezing Point of water.
• At 0 degrees Celsius, the moving particles in
  water slow down to form ice.

10
Boiling Point

• Water begins to boil at 100 degrees Celsius.
  This is the Boiling Point of water.
• As water boils, its particles move faster and
  farther apart. The particles then escape to form
  steam.

11
Chemical Change

• Some matter can become different matter and this
  kind of change is called a Chemical Change.
• Burning causes wood to change to ashes.
• Sometimes different matter is formed when two or
  more kinds of matter are mixed together.