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Tuesday, 11 November 2014

A Brief Intro to 3 States of Matter (con't from last post)

3 STATES OF MATTER: Solid, Liquid & Gas


Matter can be in different states: solid, liquid, and gas.
There is also another state, plasma, which is different than the other three states.


Why are some things solid, some liquid, and some gas?
Matter is made up of very tiny particles.
Example: Water is matter. At freezing temperatures, water is in solid ice. At room temperature water is a liquid. At very warm temperatures, water is vapor. No matter what state it is in, solid, liquid, or gas, it is still water, only the tiny particles have a different amount of energy so they act differently.


  • SOLIDS have particles that are packed very close together.
Solid particles have very little energy so they move very little, only vibrating in a fixed crystal structure.        Example: Ice is solid water at freezing temperatures.
  • LIQUIDS have particles that have relatively little space between them.
Liquid particles have more energy than solids (but less than gases), and roll over one another to fit the shape of their container.        Example: At room temperature water is a liquid.
  • GASES  have particles that are relatively far away from each other.
Gas particles have more energy than liquids and solids, and move very quickly all over, filling their container.        Example: At very warm temperatures water is vapor, like clouds.

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Here are some more examples to try:

Item
Is it a solid, liquid, or gas?
A chair

Orange juice

The air we breathe

A rubber ball

Helium in a balloon

Milk

The rubber in a balloon

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