6th grade science: Calculating Density

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

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

If this substance takes up 6mL of space, what is its mass?

• 6 mL

• 6 g

• 0 g

• 4 g

What is the density of this substance?

• 5 grams
• 5 ml
• 5 g/ml
•  10 g/ml

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

An empty beaker has a mass of 60 grams.  When mercury is added to the graduated cylinder, it has a mass of 200 grams. What is the mass of the mercury?

• 140 grams
• 200 grams
• 140 mL
• 260 g

What is the volume of the fish?

• 18.0 cm³
• 6.0 cm³ 
• 38.0 cm³

True or False:  The density of a specific type of material never changes.  

• True
• False

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

• 3 g/cm³
• 1/3 g/cm³
• 27 g/cm³
• 39 g/cm³

Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.

• 6 cm³
• 12 g/cm³
• 128 g/cm³
• 8  g/cm³

I have two objects with the same volume but different masses.  Which object will be more dense?

• The object with less weight.
• The object with more weight.
• The object with more mass.
• The object with less mass.