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2019-20 Moss Density Practice
Test Description: Density principles reviewed.
Instructions: Answer all questions to get your test result.
1) If you shake a jar of different type sand, but they are the same size and shape, they will form into layers. Why?
A
Each type of sand has a different volume.
B
Each type of sand has a different density.
C
Each type of sand has a different color.
D
Each type of sand has a different texture.
2) Which layer of the Earth is the most dense layer?
A
Inner Core
B
Outer Core
C
Mantle
D
Crust
3) Cork floats in water because?
A
It's made of wood
B
Cork does not float in water
C
Its density is less than 1 g/mL
D
Its density is greater than 1 g/mL
4) Which layer of the Earth is the least dense layer?
A
Crust
B
Inner Core
C
Outer Core
D
Mantle
5) A helium party balloon floats in air because
A
The helium and balloon together have a density more than that of air.
B
The helium and balloon together have a density less than the density of air.
C
Helium makes you talk funny.
D
They are magic balloons.
6) Panning for gold works because Gold is _____________ than Sand and Gravel.
A
More dense
B
Less dense
C
Flatter
D
Smaller
7) A liquid found to have a Mass of 75 grams and a Volume of 100 mL, has a density of ?
A
7.5 g/mL
B
.75 g/mL
C
1 g/mL
D
75 g/mL
8) What is the density of water?
A
1 mL/g
B
1 g/mL
C
1 mL
D
1 cc
9) What tools do you need to calculate density of a liquid?
A
A ruler and a microscope
B
A balance and a scale
C
Graduated cylinder and a balance scale
D
A ruler is all you need
10) To find the volume of a regular-shaped object, you should
A
Divide length by height
B
Guess, because that always work
C
Use water displacement method
D
Multiply length X width X height
11) CHALLENGE: What is the mass of an object when the density is 2 g/ml and the volume is 7.5 mL?
A
15 grams
B
1.5 grams
C
15 mL
D
15 pounds
*select an answer for all questions
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