**What is Matter?**

What is Matter?

The Property of Volume

Matter and Mass

Volume is the space that matter takes up.

Mass is how much matter is in an object.

The mass of an object doesn't change and is constant.

The volume of an object can change.

You should now be able to do the following

1. Know the difference between mass, volume and weight. Know the correct units for each.

2. Be able to determine the volume of a liquid, regular shaped solid and irregular shaped solid if you are supplied with specific information.

3. Be able to determine the weight of an object.

Matter is anything you can taste, touch, see or smell

Matter is anything that has mass

and takes up volume.

Types of volume include

- Liquid Volume

- Solid Volume

Liquid Volume

We use the following units for measuring the volume of liquids...

- L (liter)

- mL (milliliter)

- cL (centiliter)

Measuring Liquid Volumes

Several pieces of equipment can be used to measure the volume of a liquid.

These include the graduated cylinders, pipettes, beakers, flasks and syringes.

When measuring liquids in a cylinder, read the level at the meniscus.

Measuring the Volume of Regularly Shaped Solids

We use the following units for measuring the volumes of solids...

- cc or cm (cubic centimeter)

- m (cubic meter)

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Volume Formula

The following formula is used to determine the volume of a regularly shaped solid....

L x W x H

L = length W = width H = height

Answer will be in cc's

Measuring the Volume of Irregularly Shaped Solids

While measuring the volume of a cube is simple (l x w x h), a marble or broken rock would not be easy.

We use a method called the displacement method.

Archimedes Principle or the Displacement Method

When you get into a tub, the water rises or is displaced by your body. The amount the water rises is the volume of your body.

You can find the volume of an irregularly

shaped object by using this method.

Mass and Weight

Weight is how gravity pulls on an objects mass.

Weight changes depending on the amount gravity pulling on it.

An objects mass wont change, but its weight can.

Measuring Mass and Weight

The units we use for mass are the...

- kg (kilogram)

- g (gram)

- mg (milligram)

The unit for weight is "N" or Newton

- 1 kg = 9.8N

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