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Nature of Science

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

what you notice with your five senses

a)

model

b)

hypothesis

c)

inference

d)

observation

2.

all the facts and information scientists gather

a)

data

b)

conclusion

c)

inference

d)

control group

3.

a prediction or possible explanation for a question that needs to be investigated

a)

experiment

b)

data

c)

scale

d)

hypothesis

4.

carefully planned test of a hypothesis

a)

investigation

b)

control group

c)

experiment

d)

scale

5.

a statement that sums up the results of an investigation

a)

data

b)

conclusion

c)

hypothesis

d)

observation

6.

a conclusion based on knowledge and evidence; a guess based on observations

a)

inference

b)

experiment

c)

conclusion

d)

data

7.

Science is a way of knowing about the natural world.

a)

Truth

b)

False

8.

Follow all directions (written and oral) given by your teacher.

a)

true

b)

false

9.

It's ok to "play and joke around" while performing experiments because science is FUN!

a)

true

b)

false

10.

You should not eat or drink while performing experiments.

a)

true

b)

false

11.

An educated guess or testable prediction is a

a)

theory

b)

law

c)

hypothesis

d)

conclusion

12.

The statement that correctly lists the steps of the scientific method in order is ______

a)

conclusion- research-hypothesis-ask a question

b)

ask a question-hypothesis- experiment-collect data and analyze

c)

conclusion-hypothesis-research-experiment

13.

The steps commonly used by scientists in gathering information to test hypotheses and solve problems are called _____.

a)

scientific inquiry

b)

hypothesis

c)

scientific method

14.

The variable that is changed by the scientist to test a hypothesis is called the _________________________ .

a)

dependent variable

b)

independent variable

c)

control

15.

A process that uses observation and experimentation to gain knowledge about events in nature is _________________________.

a)

gravity

b)

scientific method

c)

science

16.

Which is the best description of the dependent variable?

a)

the variable that is changed by the scientist

b)

the measurable variable

c)

the variable that does not change

17.

Which of the following should be a goal of a scientific investigation?

a)

to help the scientist make money

b)

to make sure the scientist is correct

c)

to help the scientist solve a problem

18.

A prediction about a problem that can be tested is ____________________

a)

variable

b)

hypothesis

c)

theory

d)

law

19.
How do scientists learn about the world around us?
a)
By making laws
b)
By making theories
c)
Guessing
d)
Asking questions
20.
Which explanation best describes why theories can change?
a)
Scientists like to make kids learn new things
b)
Textbooks need to be updated
c)
More money is needed for research
d)
Scientists are always learning new things.
21.
Waldriana would like to investigate the effect of temperature on the amount of food birds eat.  What should she do first to begin her investigation?
a)
develop a question 
b)
conduct background research
c)
design an experiment
d)
come up with a theory
22.
Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water.  He adds salt to different temperatures of water and records his observations including the amount of undissolved salt.  He finds that there is more salt dissolved in warm water than cold water.  What should Rigoberto do next to make sure that his conclusion is valid?
a)
do another investigation with sugar
b)
repeat his investigation using a different liquid than water
c)
repeat his investigation to see if his results are the same
d)
change his results to match his original hypothesis
23.
Which question would be best to answer using a scientific investigation?  
a)
Why are people afraid during thunderstorms?
b)
How easy is it to shovel snow?
c)
Are some clouds prettier than others?
d)
Does temperature affect the amount of rain?
24.
Scientists who study hurricanes sometimes fly into the hurricanes to take readings from inside the storm.  How does this differ from most scientific research?
a)
Hurricane scientists cannot control variables.
b)
Hurricane scientists cannot collect data.
c)
Hurricane scientists cannot draw conclusions.
d)
Hurricane scientists cannot make hypotheses.
25.
Austin is studying states of matter by heating water in a pan.  Which statement from his notebook is an observation?
a)
It is hard to estimate the size of the bubbles.
b)
Tiny bubbles form on the bottom of the pan.
c)
The bottom of the pan must be very hot.
d)
I think there is air in the bubbles.
26.
How many variables should be changed in a simple experiment?
a)
5
b)
3
c)
1
d)
6
27.
A scientist says that she has made an important discovery about sound waves.  What needs to happen for most other scientists to accept her results?
a)
The scientist has to explain her results to other scientists.
b)
Many scientists need to review the results.
c)
The scientist needs to publish her results in a journals.
d)
Other scientists need to be able to get the same results.
28.
Jaylynn says a baseball and a basketball will fall at the same speed.  Her friend disagrees.  Which of these is the best way for them to find out?
a)
drop both balls from a high place and compare how fast they fall
b)
ask an adult which one is right
c)
explain their reasons to each other
d)
ask twenty different people on the playgroup what they think
29.
Alejandro wanted to find out which of his friends was the strongest.  He asked each of his friends to come to his lab three different times and lift some weights.  Alejandro wrote down how much weight each person could lift.  How was his investigation different from an experiment?
a)
Alejandro did not test a hypothesis
b)
Alejandro did not make any observations
c)
Alejandro did not repeat his tests.
d)
Alejandro did not collect any data.
30.
A scientist wanted to find out if a species of bird became extinct after a species of snake was brought to that area.  She studied the data that other scientists had collected and discovered that the bird species probably went extinct because of the snakes.  What step of the scientific investigation did the scientist not do?
a)
She did not do any research.
b)
She did not have a hypothesis.
c)
She did not conduct a test.
31.
Jonathan and Renier dropped a rubber ball from the same height onto six different surfaces.  They measured the height of each bounce and recorded their data.  The graph shows their data.  Based on the data, which of the following is the best conclusion?
a)
All balls bounce higher indoors than they do outdoors.
b)
The surface has no affect on the height of the bounce.
c)
A rubber ball does not bounce as high as a super ball.
d)
A rubber ball bounces higher on harder surfaces.

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