WorksheetsThinking Like a Scientist
Total questions: 15
Worksheet time: 14mins
Name
Class
Date
1.
Which of the following is a scientific observation?
a)
The potato is brown in color.
b)
The potato tastes the best.
c)
The potato may cause allergies.
d)
The potato smells funny.
2.
Justin blows his nose, but mucus seems to leak through the tissue. He decides to test which tissue holds up the best while sneezing. What is the independent variable?
a)
sneezing
b)
Justin
c)
amount of tissue
d)
type of tissue
3.
Mr. McNeice wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses. What is the dependent variable?
a)
type of music
b)
heart rate
c)
how long they listend to music
d)
Mr. McNeice
4.
Why should an experiment be repeated?
a)
to form a hypothesis
b)
to reduce the chance of error
c)
to change controls
d)
to identify the problem
5.
Which is the dependent variable in Amelia's experiment?
a)
the number of bean plants in each group
b)
the amount of water given daily to each plant
c)
the height of each bean plant
d)
the amount of fertilizer given to each group of bean plants
6.
In the paper airplane experiment, changing the size of the airplane would be which variable?
a)
Dependent
b)
Independent
c)
Control
d)
Conclusion
7.
Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure clapping/applause after playing Under the Sea with each reed. The results were put in the table.
What was the dependent variable?
What was the dependent variable?
a)
The Song
b)
The Reed
c)
The Applause
d)
The clarinet
8.
At one point in time, many people thought disease was caused by fate or by incorrect behavior. Following the invention of the microscope, bacteria were discovered. After this, a new theory of what causes disease arose that was known as the germ theory. Why was the original theory modified?
a)
It quickly became obvious that germs cause disease.
b)
The person who invented the microscope became ill.
c)
New evidence prompted revision to the original ideas.
d)
The proponents of the germ theory had political power.
9.
Newton’s third law of motion states that for every action there is an equal and opposite reaction. How does this law differ from a theory?
a)
A theory explains a set of well tested observations; a law describes a pattern in nature.
b)
Laws can be changed with the addition of new evidence but theories cannot.
c)
A law explains a pattern in nature in more detail than a theory.
d)
Theories are based on more evidence than laws.
10.
A biologist is investigating the effects of growth hormone on the rate of metamorphosis in butterflies. Which of the following methods of investigation would work best for the biologist investigating any possible effects?
a)
models
b)
controlled experiments
c)
systematic observations
d)
random sampling of populations
11.
Which of the following is required to be a good, scientific question?
a)
Scientific questions that are easy to answer
b)
Scientific questions that you do not need measurements to answer
c)
Investigation results that other scientists can repeat
d)
Investigation results that depend only on observations made by other scientists
12.
What are line graphs used to show?
a)
distance over time
b)
speed over time
c)
acceleration over time
d)
change over time
13.
Which of the following would be appropriate for measuring the distance around a ball?
a)
a graduated cylinder
b)
measuring tape
c)
a scale
d)
a graduated cylinder
14.
What is volume in terms of measurement?
a)
The amount of space an object takes up
b)
the noise level in my headphones
c)
the amount of mass something has
d)
the amount of time
15.
Ellie conducts an investigation to determine if size or weight affect how fast objects fall. Her investigation includes repeatedly dropping a basketball and a golf ball at the same time. After many trials, she determines that both balls land at the exact same time.
Why would Ellie's investigation be valid?
a)
It includes her opinion.
b)
It is based on evidence.
c)
It uses objects that move.
d)
It proves her predictions are correct.
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