Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | Todd observes that
his strawberry plant has grown little green strawberries. Which of these is a hypothesis Todd might
make about his strawberry plant? a. | The strawberry plant is growing under an oak
tree. | b. | The green berries are a new
type of strawberry. | c. | The green berries will ripen into red
berries. | d. | The strawberry plant
doesn’t have enough water. | | |
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| 2. | The chart below
shows the results of an experiment designed to study how exercise affects heart
rate.
Which of the following statements is the best conclusion for this
experiment?
a. | Exercise decreases a
person’s heart rate. | b. | Heart rate is increased by exercise. | c. | Heart rate is not affected by exercise. | d. | Exercise triples a person’s heart rate. | | |
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| 3. | Sandy grows roses along her
walkway. The roses close to the street had more blooms than the roses close to the house. Which
statement is a hypothesis Sandy could make about her roses?
a. | There were many blooms on the roses near the house and fewer blooms on
the roses closest to the street. | b. | received more sunlight. | c. | The roses closest to the street had more blooms because
they | d. | The roses close to the house
had fewer blooms and leaves. | e. | The roses near the house were taller but had fewer
blooms. | | |
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| 4. | Which of the
following questions is testable in a scientific investigation?
a. | Are dogs happy when they are walked? | b. | Are dogs better pets than cats? | c. | Are cats easier to take care of than dogs? | d. | Are cats more active at night than during the
day? | | |
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| 5. |
A biologist counted the number of mice, rabbits, ground squirrels, and hawks in a
meadow. There were fewer hawks than mice, rabbits, or squirrels. What section of the graph shows the
hawks?
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| 6. | A class performs
an experiment in which they place a bell in different situations.
Which problem was being investigated by this experiment?
a. | Which is the best material to use in musical
instruments? | b. | Through what materials does
sound travel best? | c. | How much faster does light travel than
sound? | d. | How does the pitch change
when the bell is moving? | | |
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| 7. | The graph shows
what happened when a candle was burned in different jars. The results of this experiment show that
the bigger the jar, the
a. | higher the candle’s flame | c. | brighter the candle’s flame | b. | faster the candle melted | d. | longer the candle burned | | | | |
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| 8. | A scientist needs
to take a picture of the well-ordered arrangements of the atoms and molecules within a substance.
Which of the following instruments would be best for the scientist to
use?
a. | an electron
microscope | c. | a seismograph | b. | a stereoscope | d. | a laser light with holograph | | | | |
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| 9. |
What observation can you make
by looking at this picture?
a. | The moon is solid rock. | c. | The moon has little air. | b. | The moon spins around on its axis. | d. | The moon is circular. | | | | |
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| 10. | Sarah wants to
know if her hermit crabs prefer sunlight or shade. What is the best way for her to find
out?
a. | Place her hermit crabs in the
shade and see if they move toward the sunlight or stay in the shade. | b. | Place her hermit crabs in the sunlight and see if they move to the
shade or stay in the sunlight. | c. | Place her hermit crabs in a box between the sunlight and shade and see
which way they crawl. | | |
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