Focus #8

Which liquid is the most dense?  

• oil
• water
• syrup
• plastic bottle

A object has a volume of 17 mL.  The same object has a mass of 212 g.  What is the density of this object?

• 12.4 g/m3
• 12.4 g/mL
• 1.24 g/mL
• 12/4 mL/g

What is the volume of Object X?

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

Tags

CCSS.3.MD.A.2

If you have a gold brick that is 2 cm by 3 cm by 4 cm and has a density of 19.3 g/cm³, what is its mass?

• 463.2 g/cm³
• 463.2 g
• 0.804 kg
• 0.804 g

Which image shows and example of erosion?

• 
• 
• 
• 

A place where fresh water from rivers mixes with salt water from the ocean.

• Estuary

• Divide

• Wetland

• Tributary

Which is an example of point source pollution?

• Littering

• Factory discharge going into the river

• Using pesticide

• Using fertilizer

Which of the following is NOT a cause of water pollution?

• Fertilizer

• Tree growth

• Soil erosion, or washing away

• Animal waste

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What kind of water is found in the Chesapeake Bay?

• fresh water

• salt water

• brackish water

• dirty water

Coal is a renewable resource.

• True

• False