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9. Helen mixed the pencil shavings with water. She observed that the pencil shavings float on top of the water. How does this happen? A. Water is denser than the pencil shavings. B. The pencil shavings are denser than water. C. Water is less dense than the pencil shavings. D. The pencil shavings are less dense than water.​

Sagot :

Answer:

D.

Explanation:

Objects with tightly packed molecules are more dense than those where the molecules are spread out. Density plays a part in why some things float and some sink. Objects that are more dense than water sink and those less dense float. Hollow things often float too as air is less dense than water.

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