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Nature of Science Remediation

Total questions: 65

Worksheet time: 36mins

Name
Class
Date
1.
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
2.
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
3.
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?
4.
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.
5.
A group of people trained to climb a mountain.  As they practices in high altitudes, a researcher measured changes in their lung strength.  Why is it important that her study has a control group?
a)
O  to ensure that everyone in the group was strong enough to climb a mountain
b)
to test equipment for measuring lung strength
c)
to share her research with as many people as possible
d)
to compare typical lung strength with the effects of training
6.
How many variables should be changed in a simple experiment?
a)
5
b)
3
c)
1
d)
6
7.
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.
8.
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
9.
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.
10.
Amanda makes the following hypothesis:  If the humidity increases, it will help plants grow.  Which of these describes a controlled experiment that would best help Amanda prove or disprove her hypothesis?
a)
recording the number of tall plants and short plants in different fields that have different humidity levels
b)
observing plant growth in a greenhouse with a constant humidity and in a greenhouse with changing humidity
c)
O  measuring the temperatures and humidity in a greenhouse that has both short and tall plants growing in it
d)
O  making a model to observe whether water collects on the walls of a greenhouse with increasing humidity
11.
Scientists are studying how bears kept in zoos behave.  Which of these would be the best control group?
a)
bears in the wild
b)
bears kept as pets
c)
other animals in zoos
d)
other animals in the wild
12.
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.
13.
1.  Why is it important to have a control in an investigation?
a)
Controls are used to show that different results are caused by changing the variable.
b)
Without controls, it is not possible to make a hypothesis.
c)
A control helps us to predict.
d)
Controls are the answer to the investigative question.
14.
A valid scientific investigation must be able to be 
a)
graphed.
b)
predicted.
c)
replicated (which means repeated)
d)
observed.
15.
Which would be the best source of information for a scientist?
a)
a TV program
b)
a book review
c)
a newspaper article
d)
an article in a science journal
16.
A scientist tested an exercise machine.  He had two groups of volunteers.  Group A exercised every day for a month.  Group B did not exercise.  He made the table below to compare their muscle strength over 30 days. What is Group B’s role in the scientist’s investigation?
a)
Group B's role is the variable.
b)
Group B's role is the control group.
17.
Why was Group B’s role important to the investigation?
a)
It is important so you have something to compare your test results to.
b)
It is important because a scientist must have control.
18.
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.
19.

What step does every scientific experiment begin with?

a)

hypothesis

b)

question/problem

c)

procedures

d)

conclusion

20.
The independent variable is the ONE thing you _____.
a)
change on purpose
b)
control or keep constant
c)
measure
21.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

22.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes. This helps us understand cause and effect.
c)
It is what has always been done
23.

What is a constant/control in an experiment?

a)

Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

b)

It's the variables that the scientist changes in the experiment

c)

It's the variables that are being measured in an experiment

24.
What is being changed in this experiment?
a)
ramp height
b)
the speed that the ball rolls
c)
type of ball
25.
What is being kept constant?
a)
ramp height
b)
speed of the ball rolling
c)
type of ball
26.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
27.

The name of the information that you get from your experiment (you organize it into charts and graphs).

a)

observations

conclusion

b)

data

c)

variables

d)

hypothesis

28.

What is an observation?

a)

A scientific statement based on ideas

b)

Using your senses to notice what is going on around you

c)

To be unaware of your surroundings

d)

The question that you want an answer to.

29.
To examine data and reach conclusions that explain their observations
a)
Observing
b)
Applying imagination
c)
Inferring
d)
Using logical reasoning
30.
Why is it important for people to understand scientific principles and to think scientifically? 
a)
It allows people to make informed decisions.
b)
It helps people estimate costs of products
c)
It helps people choose where to live
d)
It allows people to explain sports like an expert
31.

Explaining or interpreting the things you observe based on reasoning from what you already know is called

a)

observing

b)

inferring

c)

predicting

d)

classifying

32.

Jackie sets up an investigation to find out how many paperclips she can pick up with an electromagnet. She takes a long iron nail, wraps insulated wire around it 40 times, and connects the wire ends to the opposite terminals of a D-cell battery.

Jackie touches the tip of the nail to a pile of 100 paperclips and picks up 15 of them. She tries the investigation again and picks up 15 paperclips. Jackie concludes that her electromagnet can pick up 15 paperclips. What should Jackie do to improve her investigation?

a)

Jackie should use a regular magnet and not an electromagnet.

b)

Jackie should use a different type of battery.

c)

Jackie should do more trials to make sure her results are valid.

d)

Jackie should begin with more than 100 paperclips.

33.

Billy's class is studying the Moon. He is curious about how craters are formed. His teacher has the class do an investigation to find out if rocks dropped from different heights will make craters that are different in depth.

The class decides to drop a rock from 50 centimeters, 1 meter, and 1.5 meters. In scientific terms, what do we call each of the three different heights that the rock is being dropped from?

a)

control

b)

graph

c)

hypothesis

d)

independent variable

34.

Scientific ideas change over time as new discoveries are made. Which of the following scientific ideas did Copernicus suggest a replacement for in the 16th century?

a)

miasma theory, the theory that diseases are caused by bad air

b)

spontaneous generation, the idea that insects come from decaying food

c)

geocentricity, the concept that Earth is the center of the solar system

d)

elemental theory, the idea that all substances are made either of earth, air, fire, or water

35.

The _ is an organized set of investigation procedures used by scientists.

a)

scientific method

b)

scientific law

c)

scientific theory

36.

An organized procedure for testing a hypothesis is a(n) _.

a)

experiment

b)

independent variable

c)

constant

37.

A _ is a standard for comparison.

a)

hypothesis

b)

control

c)

dependent variable

38.

A(n) _ is a factor that doesn't vary in an experiment.

a)

constant

b)

control

c)

independent variable

39.

The factor that is adjusted by the experimenter is the _.

a)

control

b)

independent variable

c)

dependent variable

40.

The factor whose value depends on the independent variable is the _.

a)

experiment

b)

constant

c)

dependent variable

41.

A rule of nature that sums up related observations to describe a pattern in nature is a _.

a)

scientific law

b)

hypothesis

c)

scientific theory

42.

A _ is an explanation based on experiments or the most logical explanation.

a)

hypothesis

b)

scientific law

c)

scientific theory

43.

The symbol km is used to describe a _.

a)

kilometer

b)

kilomass

c)

kectameter

44.

In a line graph, the _ axis is called the y-axis.

a)

vertical

b)

horizontal

c)

independent variable

45.

Before designing and carrying out an experiment, you should find out what is already known about the topic by _.

a)

researching information

b)

analyzing data

c)

forming a conclusion

46.

To reveal trends in data, the data should be presented in a(an) _.

a)

hypothesis

b)

operational definition

c)

graph

47.

The part of an experiment in which all conditions are kept the same is the _.

a)

constant

b)

control

c)

conclusion

48.

What type of graph is shown?

a)

line

b)

bar

c)

circle

49.

Using one or more of your senses to gather information is called

a)

Inferring

b)

Observing

c)

Predicting

d)

Hypothesizing

50.

An educated guess or testable prediction is a

a)

theory

b)

law

c)

hypothesis

d)

conclusion

51.

Sir Isaac Newton’s study of gravity resulted in a scientific _____ since it described a pattern in nature with related observations.

a)

theory

b)

hypothesis

c)

law

52.

A statement that describes the most logical explanation based on experiment is a

a)

theory

b)

law

c)

hypothesis

53.

Observations that deal with a number or amount are called

a)

qualitative

b)

quantitative

54.

The Skittles are yellow, red and green is an example of _____.


a)

qualitative observations

b)

quantitative observations

c)

hypothesis

55.

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

56.

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

57.

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

a)

dependent variable

b)

independent variable

c)

control

58.

The _________________________ is the base metric unit of mass.

a)

Liter

b)

meter

c)

gram

59.

What type of graph shows trends over time?

a)

Circle graph

b)

Line graph

c)

Bar graph

60.

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

a)

gravity

b)

scientific method

c)

science

61.

What type of graph is used to display percentages of a whole?

a)

circle graph

b)

line graph

c)

bar graph

62.

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

63.

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

64.

A prediction about a problem that can be tested is ____________________

a)

variable

b)

hypothesis

c)

theory

d)

law

65.

One way to analyze data from a study is to _____________

a)

make a graph

b)

develop a hypothesis

c)

recognize a problem

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