Density

A block of aluminum occupies a volume of 15 cm³ and has a mass of 40.5 g. What is its density?

• .37 g/mL

• 605.5 g/mL

• 2.7 g/mL

• 25.5 g/mL

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

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Tags

NGSS.5-PS1-3

Why does ice float?

• Liquid water is less dense than solid water.
• Solid water is less dense than liquid water.
• Gaseous water is less dense than solid water.
• Liquid water is less dense than gaseous water.

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

Tags

NGSS.5-PS1-3

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Tags

CCSS.HSG.MG.A.2

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

What metric unit of measurement is used to measure small volumes of liquid?

• matter

• cubic centimeter

• mass

• milliliter (mL)

Answer explanation

We can use graduated cylinders or beakers to measure a liquid's volume.

What metric unit of measurement is used to measure small amounts of mass?

• volume

• cubic centimeter

• gram

Answer explanation

We usually use a digital scale to measure mass.

A block has a mass of 54g and a volume of 20cm3. What is the density of the block?

• 74 g/cm3

• 1080 g/cm3

• 34 g/cm3

• 2.7 g/cm3

Answer explanation

Remember: Density = Mass/Volume

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

Answer explanation

Less dense substances will always float on higher density substances.