Showing posts with label MATTER. Show all posts
Showing posts with label MATTER. Show all posts
Sunday, 15 December 2013
Monday, 9 December 2013
MATTER CHANGES
Matter changes all the time.
Three types of changes in matter are: mixtures, changes of state and chemical changes.
THE STATES OF MATTER
All matter exists in three states:
- Solid: solids have a fixed volume and a shape which does not change.
- Liquid: liquids have a fixed volume, but their shape can change. They adopt the shape of the container they are in. Liquids can flow from one place to another.
- Gas: gases do not have a fixed shape or a fixed volume. They adopt the shape and the volume of the container they are in.
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| Images from Wikipedia |
THE PROPERTIES OF MATTER
All objects have two properties in common:
- Mass: is the amount of matter in an object. Mass is measured in Kilograms or grams.
- Volume: is the amount of space an object occupies. The volume of liquids is measured in litres or mililitres. The volume of solids is measured in cubic metres or cubic centimetres.
Other properties: objects also have other properties: colour, hardness, lustre and transparency.
MATTER
Everything around us is made of matter.
Rocks, tables and windows are made of matter.
Water and air are matter.
We call all the different types of matter substances.
Water, air, iron and quartz are substances.
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