Density Science STAAR

sand

• less dense than water

• more dense than water

sugar cube

• less dense than water

• more dense than water

The density compared to water; sink = more dense, float= less dense

• solubility

• relative density

• soluble

• physical state

Tags

NGSS.MS-PS1-2

A student puts four objects in a bucket filled with water. the objects are listed below.
∎Plastic ball
∎Glass Marble
∎Metal paper clip
∎Wood block
Which two objects are most likely less dense than water?

• Wood block and metal paper clip

• Plastic ball and glass marble

• Metal paper clip and glass marble

• Wood block and plastic ball

Which liquid is the most dense?  

• oil

• water

• syrup

• plastic bottle

Tags

NGSS.MS-PS1-2

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

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. These objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of these objects?

• The keys and coins are less dense than water, so they can be easily picked up off the bottom of the pool by divers

• The foam cups have the same density as water, so they can be cumbled up for removal by the pool filter.

• The foam cups are less dense than water, so they can be removed from the surfase with a pool cleaning net.

• The keys and coins have the same density as water, so they can be washed away when the pool is drained

​ (a)   is how much matter is in a substance.

• Mass

• Volume

• Physical State

• Density

Object 1 is ​ (a)   ​​

Object 2 is ​ (b)  

Object 3 is ​ (c)  

• same density as water

• less dense than water

• more dense than water

Tags

NGSS.MS-PS1-2

A block of wood has a mass of 200 grams and a volume of 250 cubic centimeters. What is the density of the wood?

• 0.8 g/cm³

• 1.25 g/cm³

• 2.5 g/cm³

• 0.5 g/cm³