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What do I need to measure? How will I measure it?

Volume

Measuring Volume Volume is the amount of space an object takes up. Volume is the amount of space an object takes up.

* When referring to water Liter Image: Metric Units The base unit of volume in the metric system is the liter and is represented by L or l. The base unit of volume in the metric system is the liter and is represented by L or l. Standard: 1 liter is equal to one cubic decimeter Standard: 1 liter is equal to one cubic decimeter 1 liter (L) = 1000 milliliters (mL) 1 liter (L) = 1000 milliliters (mL) 1 milliliter (mL) = 1 cm 3 (or cc) = 1 gram* 1 milliliter (mL) = 1 cm 3 (or cc) = 1 gram*

The volume of objects can be measured in three different ways

Volume of a liquid Use a graduated cylinder Use a graduated cylinder Units will be mL or L Units will be mL or L Read the bottom of the curve (the meniscus) Read the bottom of the curve (the meniscus)

Looking at the meniscus Move to eye level with the water Move to eye level with the water

Look carefully! The graduated cylinder on the left is divided into increments of 2 mL, so the volume in it is 12 mL. The graduated cylinder on the left is divided into increments of 2 mL, so the volume in it is 12 mL. The graduated cylinder on the right is divided into increments of 1 mL, so the volume in it is 16 mL. The graduated cylinder on the right is divided into increments of 1 mL, so the volume in it is 16 mL.

What is the volume? 6mL 6mL

Volume of a solid (box shaped) Use a ruler Use a ruler Units are cm 3 or m 3 Units are cm 3 or m 3 Measure the length, width, and height of the object Measure the length, width, and height of the object Multiply the numbers together Multiply the numbers together

What’s the volume? 5cm x 5cm x 5cm = ? 5cm x 5cm x 5cm = ? 125cm 3 125cm 3

How do I measure a solid that is irregularly shaped? You can use water displacement You can use water displacement

What will happen if you climb in this bathtub? Why?

Volume of irregularly shaped objects Use a graduated cylinder Use a graduated cylinder Units are mL or cm 3 Units are mL or cm 3 Find the starting volume: 4.8mL Find the starting volume: 4.8mL Put in the object and find the new volume: 5.6mL Put in the object and find the new volume: 5.6mL The difference is the volume of the object: The difference is the volume of the object: 5.6 – 4.8 = 0.8mL

What is the volume of the hammer? Starting volume: 65mL Starting volume: 65mL Volume with object: 69mL Volume with object: 69mL Volume of hammer: Volume of hammer: 69 – 65 = 4mL or 4 cm 3

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Measuring Liquid Volume Images created at What is the volume of water in each cylinder? Pay attention to the scales for each cylinder.