Exploring Key Concepts of Density

Why does a can of diet cola float while a can of regular cola sinks?

• Regular cola has less carbonation.

• Diet cola has less carbonation.

• Regular cola has more sugar.

• Diet cola has more sugar.

What are the main ingredients in cola?

• Carbonated water and flavoring

• Carbonated water and caffeine

• Carbonated water and salt

• Carbonated water and sugar

Why do hot-air balloons fly?

• The balloon is filled with hydrogen.

• The balloon is filled with helium.

• The air inside the balloon is less dense than the surrounding air.

• The air inside the balloon is denser than the surrounding air.

Tags

NGSS.MS-PS1-4

What happens to the air inside a hot-air balloon when it is heated?

• It becomes heavier.

• It expands.

• It becomes denser.

• It contracts.

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NGSS.MS-PS1-4

What remains unchanged when an object is cut in half?

• Its mass

• Its volume

• Its density

• Its shape

What is the density of liquid water?

• 1.5

• 1

• 2

• 0.5

What determines whether an object will float or sink in water?

• Its shape

• Its color

• Its temperature

• Its density

If 75% of a block is below the water line, what is its density?

• 0.75

• 0.5

• 0.25

• 1

Why does ice float on water?

• Ice is the same density as water.

• Ice is less dense than water.

• Ice is denser than water.

• Ice is heavier than water.

What percentage of an iceberg is typically below the water line?

• 100%

• 92%

• 75%

• 50%