WorksheetsNature of Science
Total questions: 22
Worksheet time: 13mins
Name
Class
Date
1.
In a controlled experiment, which is the variable that the scientist changes?
a)
model
b)
independent variable
c)
dependent variable
d)
inference
2.
What skill is a scientist using when she listens to the sounds that whales makes?
a)
making observations
b)
interpreting data
c)
making a hypothesis
d)
drawing conclusions
3.
In which step of the scientific method do we want to use graphs
a)
make a hypothesis
b)
analyze data
c)
communicate results
d)
asking questions
4.
An investigation was designed to determine the effect of ultraviolet light on mold spore growth. Two groups of mold spores were grown under identical conditions, except one group was exposed only to ultraviolet light, while the other group was grown in total darkness. In this investigation, the group of mold spores grown without receiving any ultraviolet light is known as the
a)
experimental group
b)
control group
c)
independent variable
d)
dependent variable
5.
What is the volume of water displaced by the seeds?
a)
15 mL
b)
14 mL
c)
5 mL
d)
4 mL
6.
Which is included in the definition of a scientific theory?
a)
a well tested explanation of natural events
b)
a statement of what most people believe to be true
c)
a description of natural events based on casual observations
d)
a conclusion agreed upon by people without experimentation
7.
What is the correct order of the steps in the scientific method?
a)
Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.
b)
Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results
c)
Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.
d)
Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.
8.
A scientist must measure 15 mL of glycerine. Which instrument will she most likely use?
a)
scale
b)
graduated cylinder
c)
ruler
d)
thermometer
9.
If you wanted to know volume of water in a water bottle, you would use
a)
milliliters
b)
liters
c)
grams
d)
kiloliters
10.
The process of obtaining information by using the senses is called a/an
a)
observation
b)
scientific method
c)
inquiry
d)
conclusion
11.
A scientist set up an experiment to see how vinegar affects plant growth. Five seed pots received a small amount of vinegar in the soil and were placed in the sunlight. Another five pots received no vinegar and were placed in the shade. The scientist grew the seedlings for two months. Which explains why her experiment was not set up properly?
a)
More than one variable was changed.
b)
She did not have a control.
c)
She did not grow the plants long enough.
d)
Vinegar should not be used on plants.
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 number of plants in the water
b)
the water
c)
the temperature of the water
d)
the amount of salt in the water
13.
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 dependent variable is
a)
the amount of salt in the water
b)
the number of plants in the water
c)
the temperature of the water
d)
the water
14.
If you were measuring the mass of a fly using a triple beam balance, you should use
a)
grams
b)
meters
c)
liters
d)
kilograms
15.
All the things in an experiment that must be the same to make it fair are called
a)
controlled experiments
b)
controlled variables or constants
c)
independent variables
d)
dependent variables
16.
A scientist wants to know if a fertilizer causes plants to grow taller. She gives one group of plants the fertilizer every month. A second group of plants receives no fertilizer. Why does one group of plants receive no fertilizer?
a)
The scientist wants to see how sunlight affects the plants with no fertilizer.
b)
The group is used as a comparison
c)
Every experiment needs two groups
d)
There is not enough fertilizer
17.
In an experiment, the factor that we measure at the end is called the
a)
conclusion
b)
independent variable
c)
dependent variable
d)
controlled variable
18.
A scientist hypothesizes that 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 male alligator
b)
the gender of the alligator
c)
the incubator
d)
the temperature
19.
A scientist hypothesizes that 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 gender of the baby alligators
c)
the temperature
d)
the size of the baby alligators
20.
Which statement correctly describes a scientific law?
a)
It explains why something happens.
b)
It describes a pattern or event in nature that is always true.
c)
It assumed to be the best, current explanation for a set of observations.
d)
It is a possible explanation for an observation that can be tested by an investigation
21.
A scientist who wants to study the affects 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)
Plant A
c)
All of them
d)
Plant C
22.
In science, an educated guess is called a/an
a)
hypothesis
b)
observation
c)
conclusion
d)
question
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