Relative Density

What is the definition of relative density?

• The ability of an object to sink or float in water.

• Using the five senses to describe matter.

• Any and all things that have mass and take up space.

• A force that repels or attracts objects that are magnetic.

If a paperclip is more dense than water, that means that it ____ .

If a sponge is less dense than water, that means that it ____ in water.

A piece of cork is ____ dense than water.

A nail is ____ dense than water.

All of the following objects float in water except

• cork

• safety pin

• balloon

• foam ball

If you poured 3 liquids that do not mix how could you tell which one is the most dense?

• The liquid on top
• The liquid in the middle
• The liquid at the bottom

Tags

NGSS.MS-PS1-2

A bobber floats on the water because it is....

• more dense than the water

• less dense than the water

• the same density as the water

• to show you when you have a bite

Rocks sink because they are

• the same density as the water

• less dense than the water

• more dense than the water

• because they're round

Why does the egg not sink or float?

• it is more dense than the water

• it is less dense than the water

• it has the same density as the water

• it is light