Density in Water

When you INCREASE the Pressure

Density INCREASE​S

​Change the Pressure

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When you INCREASE the Temperature

Density DECREASES​

​

​Change the Temperature

​How can Density Change?

Think of the Lava Lamp Think of the Bread​

​the lava rises when it's heated

Remember CHANGING THE SIZE OR SHAPRE DOES NOT CHANGE DENSTIY

​Density of Water

The density of water is 1.0g/ml

In most cases, the density of an object in it's solid state will be greater, BUT WATER IS THE EXECPTION.

​

The Density of ICE (solid water) is LESS THAN the density of Water (in liquid state) --> ICE WILL FLOAT IN WATER​

Density of ICE is 0.9g/ml

Multiple Choice

As the temperature INCREASES, the density of an object will ___________

• increase

• decrease

• stay the same

Multiple Choice

As the pressure on an object INCREASES, the density of an object will ___________

• increase

• decrease

• stay the same

Multiple Choice

The density of gold is 19.36g/cm3, if I cut the piece into a million little pieces what will happen to the density?

• increase

• decrease

• stay the same

Multiple Choice

What is the density of water?

• 34 g/mL

• 1 g/mL

• 29 g/mL

• 6 g/mL

Multiple Choice

What two types of measurements make up DENSITY? 

• Mass and Volume
• Temperature and Mass
• Grams and Centimeters
• Volume and Weight

Multiple Choice

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball

Multiple Choice

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Multiple Choice

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Multiple Choice

What units are used to measure mass?

• g
• cm³
• g/cm³
• cm³/g

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

What is this tool to get mass?

• triple beam balance
• ruler
• thermometer
• graduate cylinder

Multiple Choice

What is this tool to get volume?

• triple beam balance
• ruler
• thermometer
• graduate cylinder

Multiple Choice

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Multiple Choice

Which box has a higher density?

• A

• B

• They are the same

Multiple Choice

A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?

• 0.89 g/cm3
• 89 g/cm3
• 8.9 g/cm3
• 890 g/cm3

Multiple Choice

The volume of the water is 40 mL. An object was placed inside the graduated cylinder and it now reads 65 mL. The mass of the object is 125 g. What is the DENSITY of the object?

• 40 mL
• 65 mL
• 25 mL

• 5 mL

Multiple Choice

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³?

• 13.3 g
• 13.3 cm³
• .075 g
• 1695 cm³

Multiple Choice

The density of a material is 2 g/cm³. The volume is 24 cm³ . What is the mass?

• 12 grams
• 48 grams
• 12 g/cm³
• 48 g/cm³

Multiple Choice

The density of a material is 12 g/cm³. The volume is 2 cm³ . What is the mass?

• 6 grams

• 24 grams

• 6 g/cm³

• 24 g/cm³

Multiple Select

There are 4 objects listed with their densities. Which of the following will float on water? (SELECT 2)

• Object A:

  0.7 g/cm3

• Object B:

  1.2 g/cm3

• Object C:

  0.25 g/cm3

• Object D:

  11.4 g/cm3