Solids: Is matter with a volume and shape that stay the same.
Liquids: Is matter that has a volume that stays the same but a shape that can change. A liquid takes the shape of whatever container holds it.
Gases: A gas has no definite shape or volume. A gas takes up all the space in a container.
Changes of State Condensation Evaporation The change of liquid to a gas. The change of a gas to a liquid.
How does the matter changes? Physical Changes Changes in matter that don’t form new kinds of matter are physical changes.
Physical Changes Example# 1: Cutting: Cutting makes a piece of paper smaller, but the paper is still paper.
Physical Changes Example #2 Knitting Knitting a wool cap. The thick wool is cut from sheep in spring. The wool is combed into soft strands, which are pulled into threads and twisted to make yarn. A knitter then knits the wool yarn into a cap. In the cap, the wool looks different from the way it looked on the sheep, but it is still wool.
Physical Changes Example # 3: Mixture A mixture is a substance that is made up of two or more kinds of matter. You put different types of matter together, but no new types of matter are formed.
Solution Is a mixture in which different kinds of matter mix evenly. Since the sand didn’t dissolve in the water, that mixture wasn’t a solution. Your mixture of salt and water was a solution. A solution of detergent and water gets dishes clean.
Chemical Changes Changes that form different kinds of matter are chemical changes. Burning Cooking Rotting Rusting