WorksheetsScientific Thinking
Total questions: 20
Worksheet time: 7mins
Name
Class
Date
1.
When do scientists use a correlation instead of an actual experiment?
a)
when it is unethical to do the experiment
b)
when it is too expensive to do the experiment
c)
whaen it is too hard to do the experiment
d)
all of the above
2.
Describe the experimental group.
a)
The group that stays the same
b)
the group that gets the treatment
c)
the group that is in its natural state
d)
the group that changes
3.
Josie was performing an experiment where she grew the same kind of tomatoes in the same soil and amount of water. She sat one in the sun and one in a closet for 14 days. What is the independent variable in Josie's experiment?
a)
tomatoes
b)
soil
c)
sunlight
d)
water
4.
Which of the following hypotheses is written correctly?
a)
If a tennis ball is frozen, it won't bounce as high as one that is not frozen.
b)
If I heat up a tennis ball it will bounce high.
c)
If I freeze a tennis ball, then it will not bounce as high.
d)
Frozen tennis balls will not bounce as high.
5.
In an experiment, the factor that we measure is called the
a)
controlled variable
b)
conclusion
c)
independent variable
d)
dependent variable
6.
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
a)
the gender of the alligator
b)
the male alligators
c)
the temperature
d)
the incubator
7.
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
a)
the incubator
b)
the temperature
c)
the size of the baby alligators
d)
the gender of the baby alligators
8.
In which step of the scientific method do we want to use graphs?
a)
communicate results
b)
asking questions
c)
analyze data
d)
make a hypothesis
9.
A scientist who wants to study the effects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg. of fertilizer each day, and Plant C gets 10mg. of fertilizer each day. Which plant is the control group?
a)
plant B
b)
All of them
c)
Plant C
d)
Plant A
10.
A conclusion reached on the basis of evidence and reasoning is a/an
..
..
a)
conclusion
b)
theory
c)
inference
d)
hypothesis
11.
The best graph to use if I want to compare the price of six different cars would be a
...
...
a)
Pie graph
b)
Bar graph
c)
Data table
d)
Line graph
12.
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 temperature of the water
b)
the water
c)
the amount of salt in the water
d)
the number of plants in the water
13.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
a)
height of the ramp
b)
distance traveled by the ball
c)
mass of the ball
d)
weight of the ball
14.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
15.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
16.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
17.
What is the first step in the scientific method?
a)
Make an observation
b)
Design and conduct an experiment
c)
Make an hypothesis
d)
Share your results
18.
This step comes after ask a question
a)
Record your results
b)
Design and perform an experiment
c)
Form an hypothesis
d)
Share your results
19.
The factors in an experiment that can be changed.
a)
variables
b)
quantitative data
c)
hypothesis
d)
steps
20.
Scientific reasoning requires a _____________ way of thinking based on gathering and evaluating evidence.
a)
objective
b)
circular
c)
logical
d)
subjective
100 %
