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Everything About Matter

Everything that takes up space and has weight is matter. The food you eat is matter. The juice you drink is matter. The air around you is matter. Matter is everywhere!

States Of Matter

There are three main states of matter they are Solid, Liquid and gas. Each has its own properties or characteristics.

Atoms - The Building Blocks

Atoms are the building blocks of all materials. Groups of atoms make substance. For example, water is made of two types of atoms that is Hydrogen atoms and Oxygen atoms. Gold has only one one type of atoms that is Gold atoms. Atoms have different sizes and weights, but they are all made the same way. They are all made up of three parts and they are Electrons , Protons and Neutrons

  • Protons are positively charged
  • Neutrons do not have any charge
  • Electrons are negatively charged particles that orbit around the nucleus of an atom
  • An atom's nucleus is made of protons and neutrons. Electrons orbit (travel around )the nucleus.
Solids Molecules

Solids - All objects are made of groups of atoms called molecules. The molecules in solids are tightly packed together. they can't float away from each other. This arrangements makes the object solid. Solids are objects that can hold their size and shape. You can do things to change the shape of a solid.


Liquids - A lake, the juice you drink, and even the blood in your body are liquid. The molecules in a liquid are less tightly packed than in a solid. They are free to move around. A liquid are free to move around. A liquid takes the shape of a container. First, fill a glass with water, then, pour that water into a large bucket. the water spreads out and fills the container.

Gases Molecules

Gases - The air around you is made of gases. A big layer of gas called the atmosphere surrounds the Earth. The molecules in gases are very spread out, so they bounce around. If you blow up a balloon, it will expand. The molecules are evenly spread out inside the balloon. All gases act the same way.

How Matter Changes


If you have ever eaten a Popsicle on a hot summer day, you have seen matter change from solid to liquid. Many types of matter can change from one form to another. When matter changes form, it is called a phase change. Phase changes usually happen because of change in temperature (like your dripping Popsicle) or because of change in pressure. Melting, vaporization, condensation, and freezing are some examples of how phase changes occur.

Heat breaks down the strong bonds between the molecules of an ice cream, causing it to melt.

Changing form

Water is only one kind of matter that can change from one phase to another. The phase changes of water are physical and therefore can be reversed, that is, ice can be melted to get water in its liquid form and the same can be frozen to get ice. However, some phase changes are permanent. For example, once you boil an egg it cannot be changed back.

Ice is the solid form of water, Ice forms when the temperature drops to zero degree centigrade or lower. One the temperature of ice rises above zero degree centigrade, the ice melts and turns into liquid water. If it is heated further, it turns into water vapor a gas. Water vapor is also called steam. If you look at a pot of boiling water, you will see the steam rise over the top of the pot.


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