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Science 6 Chapter 1 Test Set C
Test Description: Chapter 1 Test
Instructions: Answer all questions to get your test result.
1) Ice has a density of 0.9 g/mL. Water has a density of 1.0. Which is more dense?
A
Ice because the density is lower.
B
Water because the density is higher.
C
Water because the density is lower.
D
They are the same because they are the same substance just in different states.
2) If steel has a density of 7.8 g/mL and silver has a density of 10.5, if you had the same volume of each substance, which would have a greater mass?
A
Steel, because steel is heavier than silver.
B
Silver, because silver has a greater density.
C
Steel, because more steel fits in the same volume.
D
Silver, because silver is lighter than steel.
3) What's the density of a substance that has a volume of 20 cubic centimeters and a mass of 54 grams?
A
2.7 grams/cubic centimeter
B
34 grams/cubic centimeter
C
27 grams/cubic centimeter
D
0.37 grams/cubic centimeter
4) When do you need to use a graduated cylinder to find density?
A
When the object is a rectangular solid
B
When the object is a solid
C
When the object is a liquid
D
When the object has an irregular shape
5) How are a mixture and a compound different?
A
A mixture can be made of any kind of matter
B
A compound can be heterogeneous or homogeneous
C
A mixture is made of one kind of matter
D
A compound is held together by chemical bonds
6) Which kind of reaction releases energy and heats up?
A
physical
B
endothermic
C
chemical
D
exothermic
7) Which kind of reaction absorbs heat and cools down?
A
exothermic
B
chemical
C
physical
D
endothermic
8) If you have an unknown liquid, how could you find out if it is water?
A
Determine its density
B
Taste it
C
Smell it
D
See if it can dissolve salt
9) A change in state is a(n)
A
physical change
B
chemical change
C
endothermic reaction
D
exothermic reaction
10) In electrolysis, water is separated into two substances; hydrogen and oxygen. Is this a physical or chemical change?
A
Physical because separation is a physical change.
B
Physical because water can change form without changing substance.
C
Chemical because two new substances were created.
D
Chemical because hydrogen and oxygen mix to make water.
*select an answer for all questions
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