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Planning An Investigation
Test Description: Identifying components of a good investigation
Instructions: Answer all questions to get your test result.
1) How many variables should a scientist change in a good experiment?
A
two
B
three or more
C
one
D
none
2) What is a controlled experiment?
A
An experiment in which you create as many variables as possible
B
An experiment in which only one variable is changed
C
An experiment in which you use remote controls
D
An experiment in which you don't let anyone else help you
3) If you're testing how sunlight effects a plant's growth, what should be your variable?
A
sunlight
B
water
C
temperature
D
fertilizer
4) A good experiment has a _____ sample size.
A
small
B
large
5) What is a control in a good experiment?
A
A group that is observed more than the others
B
A group that is tested more than the others
C
What you use to play video games
D
A group that does not receive the variable you are changing
6) How should you record your observations?
A
on sticky notes
B
it doesn't matter how your observations are recorded
C
you don't record your observations
D
In a data notebook or table
7) In a good experiment you should include _______.
A
multiple experimental groups and one control
B
no experimental groups and multiple controls
C
multiple experimental groups and multiple controls
D
no experimental groups and no controls
8) Why should you have a large sample size?
A
to create more errors
B
to help reduce errors
C
so the sample is big enough to take a picture of
D
because experiments are fun
9) What is a variable?
A
the data you record
B
the factor or condition that is changed
C
a number
D
the number of tests you make
10) Which of these is NOT part of a good experiment?
A
using a large sample size
B
having one experimental group
C
changing one variable
D
performing multiple trials
*select an answer for all questions
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