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Density
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Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Dec 25, 2015

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Caitlin Knight
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Page 1: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Density

Page 2: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

25-100 mL lamp oil 25-100 mL rubbing alcohol 25-100 mL vegetable oil 25-100 mL tap water 25-100 mL dish soap 25-100 mL milk 25-100 mL maple syrup 25-100 mL corn syrup

25-100 mL honey Ping pong ball Soda bottle cap Plastic bead Grape tomato Board game die Popcorn kernel Metal nut or bolt

Page 3: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Which do you think would have the greater volume and mass?

Why?• 1 kg of feathers • 1 kg of rock

Page 4: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of matter within a certain volume.

Page 5: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Proof that water and ice have different densities

Page 6: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Ice and Water

• Life as we know it. What would happen if the solid was not less dense as it’s liquid?

Page 7: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Cooler Air and Air Warmer Have Different Densities

Page 8: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

To find the density1- Find the mass of the

object

2- Find the volume of the object

3- Divide Density = Mass

Volume

Page 9: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

Units for density g/cm3 or g/ml

Formula: M = mass V= volume D = density

M = D x V V = M / D D = M / V

Page 10: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

1) Find the mass of the object

2) Find the volume of the object

3) Divide : Density = Mass - Volume

To find density:

Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.

Page 11: Density. Tall, narrow, clear container (500 mL or 1000 mL graduated cylinders are perfect)

1) Find the mass of the object

2) Find the volume of the object

3) Divide : Density = Mass - Volume

To find density:

Set up your density problems like this:

Given: Mass = 35 grams Unknown: Density (g/ cm3) Volume = 7 cm3

Formula: D = M / V Solution: D = 35g/7 cm3

D = 5 g/cm3

Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.