Understanding Density

What is the formula for calculating density?

• Volume minus mass

• Mass divided by volume

• Volume divided by mass

• Mass multiplied by volume

Which of the following is an example of density causing layering?

• Smoke rising in the air

• A solid block sinking in water

• Oil and water separating

• A hot air balloon rising

Why does a hot air balloon float?

• The air inside is more dense than the outside air

• The air inside is less dense than the outside air

• The balloon is lighter than air

• The balloon is filled with helium

If an object has a mass of 10 grams and a volume of 5 milliliters, what is its density?

• 10 grams per milliliter

• 2 grams per milliliter

• 0.5 grams per milliliter

• 5 grams per milliliter

If the density of ice is 0.8 grams per milliliter, what percentage of an iceberg would be underwater?

• 80%

• 50%

• 20%

• 100%