Density

Why do some substances float on water?

• they are cooler than water
• they are more dense than water
• they are less dense than water

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is warmer than air

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

On page (35). What is the formula for density?

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

Which box has a higher density?

• A

• B

• They are the same

heat transfer in a fluid in which hot fluid rises and cold fluid sinks, setting up a cycle. (109)

Tags

NGSS.MS-ESS2-6

Match

• Celsius

• 
• Volume

• 
• Ferenhieght

• 
• Density Formula

• 
• Convection

• 

Tags

NGSS.MS-ESS2-5

NGSS.MS-PS1-4

NGSS.MS-PS3-4

An object will float in a liquid if it is

• cooled to the same temperature.

• less dense than the liquid.

• more dense than the liquid.

What States do not recognize Daylight Savings Time?

• Virginia

• Hawaii and Arizona

• Colorado

Daylight Savings Time was officially recognized in ​​ (a)  
by ​ ​ (b)  

• 1895
• 1970
• George Hudson
• Dr. Fujiti