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What's the Matter

Matter is all the stuff in the universe.
Matter is something that has mass and volume.
Matter can exist as a solid, liquid or gas.
A solid is a substance that has a definite volume and holds its own shape.
A liquid is matter that has a definite volume but no definite shape, and it takes the shape of its container.
A gas has no definite shape or volume.
Physical change is the change of the form of the matter, but does not change its identity (like ice melting).
Water is still water whether it's frozen into ice, melted into liquid or evaporated into water vapor.
When you describe an object you are usually describing its physical properties.
Color, size, roughness texture, hardness etc. are all physical properties.
If you tear a piece of paper into pieces, you change some of those physical properties.
If the change is a physical change, the matter stays the same.
Another way to change matter is through a chemical change, when one or more substances are changed to form a new substance.
Combining the ingredients for a cake and baking it, creates a chemical change.
In a chemical change the physical properties will change too, but the matter is different at the end of the process.
When rocket fuel is combined with oxygen, a lot of energy is released.
The fuel is changed into a number of different gases.
When you burn a piece of paper, it's not paper.
It is ashes, carbon dioxide, and a little steam.
During a chemical reaction you may observe a change in color, heat.
Chemical reactions happen all the time around us.
Every time a fire burns, wood and oxygen are used up.
Smoke and ash are produced.
When you eat, your body chemically changes foods for growth and energy.
When you travel in a car, gasoline and air are chemically changed.
Created by: Love2Sing