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Physical Science - Semester Test - Chapter 1
Test Description: Review questions from Chapter 1
Instructions: Answer all questions to get your test result.
1) Determine the best example of a hypothesis:
A
If I add 5 hour energy to my breakfast, then my heart rate will increase because 5 hour energy is full of caffeine.
B
If I add 5 hour energy to my breakfast, then I might go crazy during school.
C
I think that 5 hour energy will help me stay awake in class. They say it has caffeine, so it might keep me awake.
2) The process of obtaining information by using your senses is called a(n)
A
inquiry
B
conclusion
C
observation
D
scientific method
3) What is the correct order of the steps in the scientific method?
A
make a hypothesis - draw conclusions - test the hypothesis
B
make a hypothesis - test the hypothesis - draw conclusions
C
test the hypothesis - make a hypothesis - draw conclusions
D
draw conclusions - make a hypothesis - test the hypothesis
4) A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is...
A
the temperature of the water
B
the number of plants in the water
C
the water
D
the amount of salt in the water
5) A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is...
A
the number of plants in the water
B
the amount of salt in the water
C
the temperature of the water
D
the water
6) A scientist wants to study the effects of fertilizer on plants. Plant A gets no fertilizer. Plant B gets 5 mg of fertilizer each day. Plant C gets 10 mg of fertilizer each day. Which plant is the control group?
A
Plant C
B
Plant A
C
Plant B
D
All of them
7) A series of steps followed to solve problems is...
A
standard procedure
B
the scientific method
C
an investigation
D
experimental guidelines
8) The final part of an experiment; the summary of your results is called a
A
conclusion
B
question
C
controlled experiment
D
hypothesis
9) In science, an educated guess is called a(n)...
A
hypothesis
B
observation
C
question
D
conclusion
10) Which of the following is NOT a sign that a chemical reaction has occurred?
A
Mixing vinegar and baking soda creates gas bubbles.
B
When 2 solutions were mixed, the color changed.
C
When a solid was dissolved in a liquid, heat was produced.
D
When you throw a brick at a window, it cracks the window.
11) Each element has...
A
specific properties
B
mass
C
a unique number of protons
D
all of the above
12) What is the smallest unit of matter?
A
milliliter
B
milligram
C
an element
D
an atom
13) Anything that has mass and takes up space is...
A
matter
B
energy
C
heavy
D
element
14) Which of the following is NOT a property of neutrons?
A
has a negative electric charge
B
has a mass of 1 amu
C
has no electric charge
D
located in the nucleus of the atom
15) Which of the following is an example of energy?
A
atom
B
heat
C
water
D
abstract ideas
16) The atomic mass is equal to...
A
the number of neutrons and the number of electrons
B
the number of protons
C
the number of protons and the number of neutrons
D
the number of neutrons
17) A substance that cannot be broken down into simpler substances by chemical methods is...
A
an element
B
a compound
C
a molecule
D
toxic
18) The unit amu stands for...
A
atomic mass unit
B
atomic meter unit
C
atomic matter unit
D
awesome mustard unit
19) Which of the following is NOT an element?
A
oxygen
B
nitrogen
C
carbon
D
water
20) Which of the following is NOT matter?
A
sunlight
B
air
C
Roberta
D
the table
*select an answer for all questions
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