ALEC POINTER

MATTER

• Matter is anything that takes up space and also has mass
• All matter is made up of tiny particles such as atoms,molecules, or ions.
• There are three familiar states of matter -solid,liquid,and gas.

QUESTIONS:

• What is a solid?
• And liquid is matter that has a definite ____ but no definite ____.

ANSWERS:

• A solid is matter with a definite shape and volume.
• A liquid is matter that has a definite volume but no definite shape.

SURFACE TENSION

• The uneven forces acting on the particles on the surface of a liquid are called surface tension.
• A fact about surface tension is that Surface tension is the result of the cohesive forces that attract water molecules to one and another.
• Surface tension causes a liquid to act as if a thin film were stretched across its surface.

QUESTIONS:

• What is an example of an chemical change?
• (A)melting
• (B)pollution
• (C)rust
• (D)melting marmallows

QUESTION:

• Is there five states of matter?
• (A)false
• (B)true

GAS

• Unlike solid and liquids most gases are invisible,and the air you breathe is a mixture of gases.
• Gas is a matter that does not have a sedi ite shape or volume.
• The particles in gas are much farther apart than those in a liquid or solid.

FACTS

• Matter that exists in the gas state but is generally a liquid or solid at room tempature is called vapor.
• Water for example,is a liquid at room tempature.
• Also the particles in gas move at high speeds in all directions.