Density Practice

Which is the most dense?

• A

• B

• C

Answer explanation

The molecules are the closest and therefore the most dense.

Which would be the most likely to float?

• A

• B

• C

Answer explanation

Molecules that are far apart are less dense and materials that are less dense float.

Tags

NGSS.MS-PS2-5

True or False: The Grape Tomato is more dense than Water and less dense than Corn Syrup.

• True

• False

Answer explanation

Since the Grape tomato is below the water it is more dense than water and because it is above the Corn Syrup, it is less dense than Corn Syrup.

Tags

NGSS.MS-PS1-2

What is the formula used to calculate density?

Identify the Volume of the 2 red balls.

• 6 ml

• 4 ml

• 2 ml

• 1 ml

Answer explanation

Since the water level went from 4 to 6 ml the volume of the 2 red balls is 2 ml.

Calculate the Density: The mass of the 2 red balls is 100 grams.

• 2 g/ml

• 200 g/ml

• 50 g/ml

• 100 g/ml

Answer explanation

Since the water level went from 4 to 6 ml the volume of the 2 red balls is 2 ml.

What is the volume of the key?

• 50 ml

• 60 ml

• 110 ml

• 10 ml

Answer explanation

The volume increases 10 ml from 50 to 60 ml

Calculate the Density of the Key. The key has a mass of 200 grams

• 10 g/ml

• 20 g/ml

• 200 g/ml

• not enough info

Answer explanation

The volume increases 10 ml from 50 to 60 ml

Identify the Unknown Substance: The substance has a mass of 651 g and a volume of 62 m.

• Silver

• Lead

• Copper

• Aluminum

Identify the Unknown Substance: The substance has a mass of 32.64 g and a volume of 12 ml.

• Silver

• Lead

• Copper

• Aluminum