Density of Liquids

An object with which of the following densities will float in water. Water has a density of 1.0 g/cm3.

• 0,7 g/cm3

• 1.2 g/cm3

• 3.5 g/cm3

• 11.4 g/cm3

A can of Coke will sink in a bowl of water. A can of Diet Coke will float in a bowl of water. What does this tell you about the density of the Diet Coke?

• it is bigger than 1

• it is smaller than 1

• it is equal to 1

• it is equal to -1

Why do ice cubes float in a glass of water?

• the ice cubes are more dense than the water

• the water is more dense than the ice cubes

• the water is more dense than the glass

• the ice is more dense than the glass

Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3. Which of these metals would sink below the mercury if dropped into a container of mercury?

• gold (density=19.3 g/cm3

• lead (density=11.4 g/cm3)

• iron (density=7.9 g/cm3

• aluminum (density= 2.7 g/cm3)

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

A scientist has four different liquids and pours them all into a bottle. The silver liquid sinks to the bottom, the red liquid settles on top of the silver one, and the pink liquid stays at the surface. Which liquid has the smallest density?

• the pink liquid

• the silver liquid

• the red liquid

• 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

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

Which liquid is the least dense?

• oil

• water

• syrup

• plastic bottle

Tags

NGSS.MS-PS1-2

Put the liquids in order from most dense to least dense?

• honey, liquid soap, water, ethyl alcohol

• water, liquid soap, honey, ethyl alcohol

• ethyl alcohol, water, liquid soap, honey

• liquid soap, honey, ethyl alcohol, water

Tags

NGSS.MS-PS1-2