CA1 Review - Chemistry - 8th Grade

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.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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.MS-PS1-2

What is the formula for density?

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

In the picture, the mass of the block is 200 g, the dimensions of the block are 6 cm by 4 cm by 5 cm.  What is its density?

• 1.67g/cm³
• 13.33 g/cm³
• 0.60 g/cm³
•  24000 g/cm³

Which box has a higher density?

• A

• B

• They are the same

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Tags

NGSS.MS-PS1-2

An object is is placed into 45 mL of water. The water rises to 48 mL. What is the volume of the object?

• 3 mL

• 93mL

• 8 mL

• 83 mL

Tags

NGSS.MS-PS1-2

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³?

• 13.3 g
• 13.3 cm³
• .075 g
• 1695 cm³

What is the mass of a substance with a volume of 72.5 cm³ and a density of 0.94 g/cm³?

• 68.15 g
• 77.13 g
• 62 g
• 100 g

Which term is missing?

• Compounds

• Metals

• Molecules

• Solutions

Tags

NGSS.MS-PS1-1