Density Sink or Float

Why do some things float on the water?

• because it has no weight.

• because it has no mass.

• because it has no volume.

• because it is less dense.

What will happen to an object that is more dense than the water?

• It will sink.

• It will float.

• it will decay.

• It will disappear

Tags

NGSS.MS-PS2-5

Objects that are less dense than the water

• float

• sink

Objects that are denser than water

• float

• sink

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink

• float

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

Tags

NGSS.MS-PS1-2

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

Tags

NGSS.MS-PS1-2

Look at this image.  Which object has the lowest density?

• The Ping Pong Ball because it floats to the top 

• The bolt because it has sunk to the bottom

• The cherry tomato as it's suspended in the middle

Tags

NGSS.MS-PS1-2

• Float

• Sink

• Neither, it will stay at the same level.

• It depends on the temperature of the water.

Why do some substances float on water?

• they are warmer than water

• they are cooler than water

• they are more dense than water

• they are less dense than water