PROPERTIES OF THE THREE STATES OF MATTER.pptx

PROPERTIES OF THE THREE STATES OF MATTER

1. WEEK 1 – LESSON 1 PROPERTIES OF THE THREE STATES OF MATTER WEEK 1 – LESSON 1

2. WHAT IS MATTER? Matter is defined as anything that occupies space (it has volume) and has mass. Volume refers to the amount of space occupied by a matter while; M ass refers to the amount of matter in an object. All objects which occupy space and have mass are considered as matter. Matter consists of tiny particles called atoms .

3. Three states of matter There are three main states of matter: solid , liquid and gas . If you search from the internet, these are not only three, but seven. The plasma, bose -Einstein condensates, fermionic condensates and degenerate matter are the additional four states.

4. solid Solids have definite shapes and volume because the particles are packed closely together in fixed positions. They vibrate a little, but in fixed positions. The particles cannot move around. They are held together by strong forces. One common characteristic of both solids and liquids is that the particles are in contact with their neighbors, that is, with other particles. Thus, they are incompressible and this commonality between solids and liquids distinguishes them from gases.

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6. LIQUID Liquids can flow out of a container and can be poured into another while maintaining their volume. This happens because there are attractions among the particles of liquid which hold them together, although not in fixed positions. These attractions also make it possible for liquids to have a definite volume. This is one major difference between liquids and gases. The particles are attracted to one another more strongly than the particles of gases.

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8. GAS Gas particles move at random directions very quickly and travel in straight-line paths. In the process, they collide with one another and with the walls of the container. They change direction only when they rebound from the collisions. The distance between particles is large compared to the size of the particles. The attraction between particles is negligible because of the large distance between them. This explains why a gas spreads.

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