AIM: How is volume measured? VOCABULARY Cubic centimeter (cm3) Milliliter (mL) Liter (L) Regular shaped objects Irregular shaped objects 12/30/2018

OBJECTIVE To successfully measure volume using the metric system for a regularly shaped object. 12/30/2018

DEFINITION What is volume ? Volume is the amount of space matter (a solid, a liquid or a gas) takes up. 12/30/2018

In the United States… How is liquid volume measured ? Cups, pints, quarts, ounces, gallons. 12/30/2018

In the Metric System… How is liquid volume measured ? Liters = Base (standard) unit of measure for volume We see liters and milliliters on items we buy at the grocery store 12/30/2018

Both liquids and solids take up space, so both liquids and solids have measurements of volume FACT: 1 milliliter (mL) takes up the same amount of space as a cubic centimeter (cm3) 12/30/2018

a milliliter is also called a cubic centimeter (cm3) Basic Terminology 1 liter = 1000 milliliters 1 L = 1000 ml a milliliter is also called a cubic centimeter (cm3) 12/30/2018

Our instrument for measuring regularly shaped solids…. Meter stick (or a metric ruler) 12/30/2018

How would you calculate the volume of a cube? Height Width Length 12/30/2018

How would you calculate the volume of a cube? Volume = L x W x H 12/30/2018

What is the Volume of this cube? So, if the Length is 2 cm and the width is 2 cm and the height is 2 cm … What is the Volume of this cube? Volume = L x W x H 12/30/2018

2cm x 2cm x 2cm = 8 cm 3 Volume = L x W x H 12/30/2018

Suppose instead of cube, we use a rectangular box … Volume = L x W x H 12/30/2018

The Length is 4cm, the width is 2cm, the height is 3cm The Length is 4cm, the width is 2cm, the height is 3cm. What is the volume ? 3 cm 2 cm 4 cm Volume = L x W x H 12/30/2018

4cm x 2cm x 3cm = 24 cm 3 3 cm 2 cm 4 cm Volume = L x W x H 12/30/2018

What do you think you call an object whose L, W, and H are easily measured? Regular Shaped Object 12/30/2018

Regular Shaped Objects 3 Regular Shaped Objects are objects whose H, L, and W are straight even lines and can be accurately measured with a ruler. 12/30/2018

Irregular Shaped Objects 3 Irregular Shaped Objects are objects that don’t have straight even lines and can not be accurately measured with a ruler. But…more on that tomorrow… 12/30/2018

Calculate the volume of … 3 Calculate the volume of … … an object who height is 5 cm, whose length is 10 cm, and whose width is 4 cm 12/30/2018

A cubic centimeter (cm3) is the same as a milliliter (mL) 1 cm3 = 1 mL 12/30/2018

Now – lets practice on some real objects !!! 3 Now – lets practice on some real objects !!! Volume = L x W x H 12/30/2018

Class Work Calculate the volume of some real objects ! 12/30/2018