7th Grade Ch2

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder

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

What is the formula for density?

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

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

Tags

NGSS.5-PS1-3

Box A and B have identical volumes. Which box has a higher density?  

• Box A
• Box B
• Neither
• Wha???

An object with which of the following densities will float on water?

• 0.7 g/cm³
• 1.2 g/cm³
• 3.5 g/cm³
• 11.4 g/cm³

A can of Coke will sink in a bowl of water.  A can of Diet Coke will float in a bowl of water.  What does this tell you about the density of the Diet Coke?

• it is greater than 1
• it is less than 1
• it is equal to 1
• it is equal to -1

Why do ice cubes float in a  glass of water?

• the ice cubes are more dense than the water
• the water is more dense than the ice cubes
• the water is more dense than the glass
• the ice is more dense than the glass

The following liquids are poured together in a beaker: alcohol (density=0.79), corn syrup (density=1.38), water (density=1.0), and cooking oil (density=0.93).  Which of these liquids will sink to the bottom of the beaker?

• alcohol
• corn syrup
• water
• cooking oil

Tags

CCSS.HSG.MG.A.2

A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a

• weight greater than the ocean
• lower density than the wooden block
• higher volume than the wooden block
• higher density than the wooden block