The material that makes up the observable universe.

Matter and energy cause all of the things that happen in the universe.

Small particles form protons, and together with electrons, they form atoms.

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​Matter

They are the characteristics which are observed to group different materials.

Some characteristics are: ability to absorb, to sink or float, and the ability to decay.​

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​Properties of Matter

Absorption - the ability of a material to absorb or take in another material gradually.

They are called absorbent materials.

Materials that cannot take in liquids are called nonabsorbent​ materials.

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​Ability to Absorb

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​​absorbent materials

​​nonabsorbent materials

Por means hole.

Porous materials have tiny pockets of air.

This means that they can hold and retain liquids.

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​Porosity

Absorbent materials need to be stored in a clean, dry area.

Cloths should be folded before being placed in a cabinet.

Rugs must be washed and separated from clothes.

Sponges must be wrung-out and disinfected.​

Corks must be kept away from chemicals.​

Loofahs must be dried in an open area.​

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​Storage​