Physical Science - Semester Test - Chapter 1 Question Preview (ID: 49211)
Review Questions From Chapter 1.
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The unit amu stands for...
a) atomic matter unit
b) atomic mass unit
c) awesome mustard unit
d) atomic meter unit
Which of the following is NOT an element?
a) water
b) oxygen
c) carbon
d) nitrogen
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
Which of the following is an example of energy?
a) atom
b) abstract ideas
c) heat
d) water
The atomic mass is equal to...
a) the number of protons and the number of neutrons
b) the number of neutrons and the number of electrons
c) the number of protons
d) the number of neutrons
Anything that has mass and takes up space is...
a) energy
b) heavy
c) element
d) matter
Which of the following is NOT a property of neutrons?
a) has a mass of 1 amu
b) has no electric charge
c) located in the nucleus of the atom
d) has a negative electric charge
Each element has...
a) specific properties
b) a unique number of protons
c) mass
d) all of the above
What is the smallest unit of matter?
a) an element
b) an atom
c) milliliter
d) milligram
The final part of an experiment; the summary of your results is called a
a) controlled experiment
b) conclusion
c) question
d) hypothesis
In science, an educated guess is called a(n)...
a) observation
b) question
c) conclusion
d) hypothesis
Which of the following is NOT a sign that a chemical reaction has occurred?
a) When 2 solutions were mixed, the color changed.
b) When you throw a brick at a window, it cracks the window.
c) When a solid was dissolved in a liquid, heat was produced.
d) Mixing vinegar and baking soda creates gas bubbles.
A series of steps followed to solve problems is...
a) experimental guidelines
b) the scientific method
c) standard procedure
d) an investigation
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 amount of salt in the water
b) the number of plants in the water
c) the water
d) the temperature of the water
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 A
b) Plant B
c) Plant C
d) All of them
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 amount of salt in the water
b) the number of plants in the water
c) the water
d) the temperature of the water
The process of obtaining information by using your senses is called a(n)
a) scientific method
b) inquiry
c) observation
d) conclusion
What is the correct order of the steps in the scientific method?
a) make a hypothesis - draw conclusions - test the hypothesis
b) test the hypothesis - make a hypothesis - draw conclusions
c) make a hypothesis - test the hypothesis - draw conclusions
d) draw conclusions - make a hypothesis - test the hypothesis
Determine the best example of a hypothesis:
a) If I add 5 hour energy to my breakfast, then I might go crazy during school.
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 my heart rate will increase because 5 hour energy is full of caffeine.
d)
Which of the following is NOT matter?
a) the table
b) Roberta
c) sunlight
d) air
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