Density

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink

• float

A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a

• lower volume than the wooden block

• lower density than the wooden block

• higher volume than the wooden block

• higher density than the wooden block

Helium balloons rise on earth because

• helium is less dense than air

• helium is more dense than air

• helium is cooler than air

• helium is warmer than air

You are given a mystery object in science class. Your teacher asks you to determine if your object is more or less dense than water. You place the object in the water and it sinks. What statement would best describe this situation?

• The mystery substance is denser than water.

• Water is denser than the mystery substance.

• They both have the same mass.

• The mystery substance must be hollow.

When two materials that have different densities, like oil and water, encounter one another, they will?

• exchange densities.

• mix uniformly.

• repel one another.

• separate according to their densities.

Will a marble float or sink?

• Float

• Sink

Density is...

• the amount of mass in an object,

• the size of the object

• how crowded or packed the particles are

• the weight of an object

In general what is the most dense form of matter?

• solid

• liquid

• gas

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

• sink

• float

An object will float in a liquid if it is

• cooled to the same temperature.

• heated to the same temperature.

• less dense than the liquid.

• more dense than the liquid.