Calculate Density to Identify an Unknown Substance

If water has a density of 1 g/ml and you have a swimming pool full of water.  What happens to the density when half of the water is drained out?

• 2 g/ml
• 0.5 g/ml
• 1 g/ml
• 6 g/ml

Which of the following is the correct calculation for determining the density of an object with a mass of 54 g and a volume of 6 mL?

• 6 ÷ 54
• 6 x 54
• 54 ÷ 6
• 6 + 54

A rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water in it. The water level rose as shown. Calculate the density of the rock in g/mL.

• 14 g/ml
• 2.33 g/ml
• 0.42 g/ml
• 40 g/ml

Tags

NGSS.MS-PS1-2

The table provides the densities of several substances. A student has a sample of an element that has a volume of 6.7 cm3 and a mass of 75.7 g. Based on the density, which element on the table could it be?

• Germanium
• Iron
• Lead
• Mercury

Tags

NGSS.MS-PS1-2

The table provided identifies a substance based on its density. A sample of an unknown substance has a mass of 89 grams and a volume of 10 cm3. Based on its density, it could be which of the following substances?

• Aluminum
• Brass
• Copper
• Gold

Tags

NGSS.MS-PS1-2

The table provided identifies a substance based on its density. A sample of an unknown substance has a mass of 28.8 grams and a volume of 4 cm3. Based on its density, it could be which of the following substances? 

• Gold
• Iron
• Lead
• Tin

A sapphire’s density is 3.98 g/cm3. Which of the following gemstones, based on its density, might be a sapphire? 

• Gemstone #1: mass =1 g, volume =1 cm3
• Gemstone #2: mass =7.96 g, volume =2 cm3
• Gemstone #3: mass =50 g, volume =4 cm3
• Gemstone #4: mass =25.6 g, volume =8 cm3

Tags

NGSS.MS-PS1-2

Based on the data for the four samples, determine which of the following substances has the greatest density?

• Sample 1: volume = 15cm3, mass = 30 g
• Sample 2: volume = 20cm3, mass = 66 g
• Sample 3: volume = 3cm3, mass = 12 g
• Sample 4: volume = 48cm3, mass = 100 g

Determine the density of a sample of an unknown substance with a mass of 6 grams and a volume of 12 cm3. 

• 0.5 g/cm3
• 1 g/cm3
• 5 g/cm3
• 10 g/cm3

Another way to say density

• Density
• Mass Divided by Volume
• Water
• Element