Relative Density

What does less dense mean?

• When something FLOATS in water

• When something SINKS in water

What does more dense mean?

• When something FLOATS in water.

• When something SINKS in water.

A rubber duck is...

• More dense than water

• Less dense than water

A rock is...

• Less dense than water

• More dense than water.

Which liquid is denser than water?

• Oil

• Water

• Honey

Which liquid is LESS DENSE than water?

• Oil

• Water

• Honey

Which liquid is MORE DENSE than water?

• Oil

• Water

• Honey

Observe the illustration. This illustration shows a rubber ball, a foam block. oil, and a rock.

In the illustration, which object is more dense than water?

• foam block

• rock

• oil

• rubber ball

Observe the photo. This photo shows the layers of oil, water, and corn syrup. Complete each sentence based on the photo.

The corn syrup is ___ dense than water.

• less

• more

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball