Sometimes the results of investigations are not what was expected. What should a scientist do?

plan another investigation to test results of the first one

Which statement best describes Sandy's investigation?

it involves repeated observations

Why is it important to have more than one trial in an experiment?

Small errors can be averaged when there are multiple trials.

Why is it important to identify and control variables?

because a scientist must know which variable causes change

Why do scientist repeat their experiments?

to make sure that the information they collect is reliable

Scientists include controls in their experiments. Why is a control important?

it helps scientists compare their results to a standard

Which of the following is always an important part of an experiment?

identifying and controlling variables

Which of the following would be best done using repeated observation rather that an experiment?

Find average number of times aweek in May bees visit flowers

You want to know if the mass of paper airplane of the height from which it is released affects

the material the plane is made from

Which of the following variables is Asa measuring?

the force needed to pull the weight

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Nature of Science

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#Scientific Method

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Questions 14

Answers

1
Cobie is testing the amount of fertilizer affects the height of plants.
the location of the plants
the height of the plants
the amount of fertilizer
the amount of water each plant gets
2
Sometimes the results of investigations are not what was expected. What should a scientist do?
plan another investigation to test results of the first one
change the results
ignore the first set of results and plan a different invest.
defend the results as correct
3
Which statement best describes Sandy's investigation?
it involves modeling
it involves experimentation
it involves both experimentation and repeated observations
it involves repeated observations
4
Why is it important to have more than one trial in an experiment?
Conditions in an experiment are different in every trial.
Small errors can be averaged when there are multiple trials.
One of the trials will support your hypothesis.
The result should differ each time.
5
Why is it important to identify and control variables?
because a scientist must form a hypothesis
because a scientist must know which variable causes change
scientist must know which variable to use for making a model
because a scientist must observe data
6
Why do scientist repeat their experiments?
to develop a new procedure that they can use later
to avoid making observations
to make sure that the information they collect is reliable
to throw out the information they collected earlier
7
Which variable should change in each room?
the color used
the type of room used
the amount of time the person spends in the room
the instruments used to test the blood pressure
8
Scientists include controls in their experiments. Why is a control important?
it helps scientists record their repeated observations
it helps scientists form their first hypothesis
it helps scientists share their results
it helps scientists compare their results to a standard
9
Which of the following is always an important part of an experiment?
identifying and controlling variables
making drawings of things observed
observing things in nature
making a working model
10
Which of the following would be best done using repeated observation rather that an experiment?
Find average number of times aweek in May bees visit flowers
Determine whether a bee hive is strong er than a wasp nest
Find if a diet that includes honey daily will reduce allergy
determine which type of flower gives the strongest scent
11
Which way of gathering information do only scientists use?
observing
recording
reading
experimenting
12
You want to know if the mass of paper airplane of the height from which it is released affects
The distance traveled
the material the plane is made from
The mass of the plane
the height the plane is released from
13
Which of these is an example of a scientific observation?
Most people drive black cars
The rock is smooth and gray
What is the best brand of soap
The sun's light helps plants grow
14
Which of the following variables is Asa measuring?
the force needed to pull the weight
the speed with which the weight is pulled
the amount of weight being pulled
the type of surface the weight is being pulled across

Nature of Science Flashcards | StudBud