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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
I think that 5 hour energy will help me stay awake in class. They say it has caffeine, so it might keep me awake.
C
If I add 5 hour energy to my breakfast, then I might go crazy during school.
2) The process of obtaining information by using your senses is called a(n)
A
conclusion
B
observation
C
inquiry
D
scientific method
3) What is the correct order of the steps in the scientific method?
A
test the hypothesis - make a hypothesis - draw conclusions
B
make a hypothesis - draw conclusions - test the hypothesis
C
make a hypothesis - test the 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 number of plants in the water
B
the water
C
the amount of salt in the water
D
the temperature of 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 temperature of the water
C
the amount of salt in 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
All of them
B
Plant C
C
Plant A
D
Plant B
7) A series of steps followed to solve problems is...
A
experimental guidelines
B
an investigation
C
the scientific method
D
standard procedure
8) The final part of an experiment; the summary of your results is called a
A
hypothesis
B
conclusion
C
controlled experiment
D
question
9) In science, an educated guess is called a(n)...
A
observation
B
hypothesis
C
question
D
conclusion
10) Which of the following is NOT a sign that a chemical reaction has occurred?
A
When you throw a brick at a window, it cracks the window.
B
Mixing vinegar and baking soda creates gas bubbles.
C
When 2 solutions were mixed, the color changed.
D
When a solid was dissolved in a liquid, heat was produced.
11) Each element has...
A
all of the above
B
mass
C
a unique number of protons
D
specific properties
12) What is the smallest unit of matter?
A
an atom
B
milliliter
C
milligram
D
an element
13) Anything that has mass and takes up space is...
A
heavy
B
element
C
energy
D
matter
14) Which of the following is NOT a property of neutrons?
A
has no electric charge
B
located in the nucleus of the atom
C
has a mass of 1 amu
D
has a negative electric charge
15) Which of the following is an example of energy?
A
heat
B
atom
C
abstract ideas
D
water
16) The atomic mass is equal to...
A
the number of protons
B
the number of neutrons and the number of electrons
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
a molecule
B
an element
C
a compound
D
toxic
18) The unit amu stands for...
A
awesome mustard unit
B
atomic meter unit
C
atomic mass unit
D
atomic matter unit
19) Which of the following is NOT an element?
A
carbon
B
water
C
nitrogen
D
oxygen
20) Which of the following is NOT matter?
A
air
B
sunlight
C
Roberta
D
the table
*select an answer for all questions
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