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WorksheetsUnit 1 Review
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
A well supported explanation of nature
a)
law
b)
theory
c)
empirical evidence
d)
experiment
2.
All the measurements and data scientists gather in support of a scientific explanation.
a)
law
b)
theory
c)
empirical evidence
d)
experiment
3.
Describes the way the world works.
a)
law
b)
theory
c)
empirical evidence
d)
experiment
4.
A testable idea or explanation that leads to scientific investigation.
a)
experiment
b)
observation
c)
hypothesis
d)
science
5.
An organized procedure to study something under controlled conditions.
a)
experiment
b)
observation
c)
hypothesis
d)
science
6.
The process of obtaining information by using the senses.
a)
experiment
b)
observation
c)
hypothesis
d)
science
7.
Test variable. This is the ONE variable that you change on purpose.
a)
independent variable
b)
dependent variable
c)
science
d)
constant
8.
The process of observing, studying, and thinking about the world around you.
a)
independent variable
b)
dependent variable
c)
science
d)
constant
9.
Variable that DOES NOT change in an experiment.
a)
independent variable
b)
dependent variable
c)
science
d)
constant
10.
Outcome variable. This is the variable that you measure.
a)
independent variable
b)
dependent variable
c)
science
d)
constant
11.
Cars get better gas mileage when their tires are properly inflated. Sayeema wanted to test if this was true, so she filled the gasoline tank in her car, inflated the tires to the car maker’s suggested pressure, drove her car, and then calculated the miles per gallon. The next time she filled the car’s tank with gasoline, she reduced the pressure of air in her tires. Once again she drove the car over the same roads and calculated the miles per gallon. She tried the process again with tires that were inflated a little more than the suggested pressure.
What is the independent variable?
What is the independent variable?
a)
Gas mileage
b)
Tire inflation pressure
c)
Type of gasoline used
d)
Roads where the car was driven
12.
Music may help people relax. Darius got two groups of people together. He took everybody’s pulse and blood pressure. Then he allowed one group to listen to soothing music while the other group sat in silence. After the song was over, he measured everyone’s pulse and blood pressure again.
What is the dependent variable?
What is the dependent variable?
a)
Sitting in music or silence
b)
Pulse and blood pressure
c)
Type of music
d)
Darius
13.
1. Emily made four paper helicopters. Each was made out of a different kind of paper. She flew each one several times in the hallway and recorded how long each stayed in the air.
What is the independent variable?
What is the independent variable?
a)
Flight time
b)
Number of helicopters
c)
Type of paper
d)
Hallway
14.
Which of the answers is NOT a scientific model?
a)
a volcano made out of household materials
b)
a field trip to Big Cypress National Preserve
c)
A graph of temperature data
d)
a car made out of Legos
15.
When an activity is repeated by the same person, it is _________________.
a)
repetition
b)
replication
16.
Which of these items must be supported by empirical evidence?
a)
opinion
b)
observation
c)
field work
d)
theory
17.
Which of the following is true of science but not sports?
a)
Used to better understand the natural world.
b)
Involves data collection
c)
Requires trial and error
d)
Must be performed inside
18.
Which of the following is a characteristic shared by all valid scientific investigations?
a)
The experiment must be long
b)
The experiment must produce replicable results.
c)
The experiment must yield the desired results.
d)
The experiment must be complex.
19.
Dan measured the rate of erosion on model hills made of rock, soil, and sand. What is the IV?
a)
the rate of erosion on the hills
b)
the steepness of the hillsides
c)
the amount of water sprayed onto the hills.
d)
the type of material used to construct the model hills.
20.
Which of the following is NOT an Earth/Space Science topic?
a)
stars
b)
weather
c)
force and motion
d)
rocks and minerals
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