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WorksheetsNature of Science Review
Total questions: 38
Worksheet time: 31mins
Name
Class
Date
1.
A collection of beliefs such, such as astrology, is known as...
a)
Pseudoscience
b)
Fact
c)
Theory
d)
Law
2.
In order for an explanation to be considered scientific, it must be based on ____________.
a)
an inference
b)
a conclusion
c)
past experience
d)
evidence
3.
The word stem pseudo- means:
a)
false
b)
true
c)
understand
d)
science
4.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
5.
On a graph, which axis shows the independent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
6.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
7.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
8.
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
9.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
10.
Ms. S set 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)
Who set up the experiment (Ms. S, etc)
11.
Tiffany was investing how fast it took Hayden to react to different sounds. Identify the independent variable.
a)
How fast Hayden reacted
b)
different sounds
c)
types of music
d)
Hayden
12.
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?
a)
Type of reward
b)
Praise
c)
Type of dog
d)
Amount of time the dog follows commands
13.
The independent variable is the ONE thing you _____.
a)
change
b)
keep the same
c)
experiment with
d)
investigate
14.
The measurable factor in an experiment is known as the:
a)
Control
b)
Independent Variable
c)
Constant
d)
Dependent Variable
15.
Alexandra is testing the quality of her Nikon camera against the camera on her iPhone. The different cameras is the __ variable.
a)
constant (same)
b)
dependent (measured)
c)
independent (changes)
16.
When a another scientist does someone's experiment to see if the results are valid?
a)
repetition
b)
replication
c)
experimental method
d)
controlled variable
17.
Scientists frequently repeat the experiments of others scientists. Why is this important in science?
a)
Scientists often ask each other for help in performing experiments.
b)
Replication of experiments helps to confirm and verify results.
c)
Scientists frequently perform other scientists’ experiments in order to practice their technique.
d)
Repeating experiments is an effective way to make sure a laboratory is in optimal condition.
18.
Caira reads in a science journal that replication and repetiton are so important, but she did not understand the difference between them. Which of the following best explains the two terms?
a)
Repetition is when a scientist repeats an experiment; replication is when a scientist conducts an experiment on genetic material.
b)
Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.
c)
Repetition is when a scientist publishes in more than one scientific periodical; replication is when another scientist reproduces another scientist’s results.
d)
Repetition is when a scientist commits an error in an experiment the first time and must repeat it; replication is when a scientist repeats an experiment to make sure it is valid.
19.
Dr. Smith has been reading about another scientist’s research in a physics journal. He plans to do these experiments himself and see if he gets the same result.
a)
repetition
b)
replication
20.
Josue goes to Silver River each week for 4 weeks and collects 5 samples of water to test the pH.
a)
repetition
b)
replication
21.
Kevin was mixing a batch of glue and borax solution to make silly putty and discovered a new substance that glows in the dark. He gave Ja'nay his specific amounts of ingredients and the steps of his procedure. He asked Ja'nay to try the experiment to see if she gets the same results.
a)
repetition
b)
replication
22.
Ryan is testing golf balls. He drops three different brands of balls from 40 cm and measures how high they bounce. He drops each ball 10 times.
a)
repetition
b)
replication
23.
These kind of observation use your senses to observe results.
a)
Qualitative
b)
Quantitative
c)
Scientific
24.
These kind of observations are made using instruments such as rulers, balances and thermometers.
a)
Qualitative
b)
Quantitative
c)
Scientific
25.
The leaf is 5 mm wide.
a)
Qualitative
b)
Quantitative
26.
The temperature of the room is decreasing by 4 degrees Celsius.
a)
Qualitative
b)
Quantitative
27.
The mass of the chocolate cake is 250 g.
a)
Qualitative
b)
Quantitative
28.
There are 75 trees in the forest.
a)
Qualitative
b)
Quantitative
29.
The clouds are grey and ground is wet.
a)
Qualitative
b)
Quantitative
30.
There are 25 liters of water in the buckets.
a)
quantitative
b)
qualitative
31.
The leaves on the plant are turning brown.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
32.
There are 16 red marbles in the bag.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
33.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
34.
Information gathered or collected during an experiment
a)
Units
b)
Constants
c)
Data
d)
Hypothesis
35.
Scientists conduct an experiment many times and find that the results do not support the currently accepted hypothesis. Which course of action should the researcher take?
a)
Consider the current hypothesis pseudoscience
b)
Form a new hypothesis and plan a new experiment
c)
Change the procedure to obtain the desired outcome
36.
In 1897, Joseph Thomson discovered that atoms contained electrons. He proposed a change in the atomic theory of that time, and the theory was modified because of his discovery. Since Thomson’s discovery, atomic theory has been further modified. What is the best explanation for why scientific theories are modified?
a)
Theories more than ten years old are usually out of date.
b)
Scientists want to prove that the work of other scientists is wrong.
c)
New evidence that supports a revision prompts scientists to modify earlier theories.
d)
So much information is available today that it is harder to focus research and disprove theories.
37.
Scientific theories are based on
a)
general assumptions of how systems work.
b)
mathematical principles that can be proven true.
c)
large amounts of data collected over time.
d)
observations from within only one scientific discipline.
38.
Scientific theories do not change once they have been written down.
a)
True
b)
False
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