Density Part 1

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Which of the following objects is less dense than water?

• Cotton ball

• Wood cube

• Iron nail

• Glass marble

Which of these materials is more dense than water?

• Plastic toy soldier

• Wood cube

• Rubber eraser

• Air

If an object floats when placed in water, what can be concluded about its density?

• It is more dense than water.

• It is less dense than water.

• It has the same density as water.

• Its density cannot be determined.

What is the density of a cotton ball relative to water?

• It is less dense than water.

• It is more dense than water.

• It has the same density as water.

• Its density varies depending on its size.