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Introduction to Science
Introduction to Science
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Reviewing lab safety, scientific method, and variables
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1
Which of the following is an example of a lab safety rule that is being broken?
Directly smelling an unknown substance
Cleaning up lab supplies before leaving class
Reading the directions before beginning a lab
Using goggles when working with glass and hotplates
2
What is the control group in an experiment?
group that receives experimental treatment
group that does not receive experimental treatment
3
In order to test a hypothesis, you must
make a prediction
conduct an experiment
ask questions
form a theory
4
How many variables can be tested at one time in an experiment?
three
two
four
one
5
The dependent variable from the image below is
amount of water
amount of sunlight
plant growth
type of soil
6
"All matter in the universe was confined to a single point that exploded" is an example of a
theory
hypothesis
prediction
law
7
What is the independent variable from the image below?
position of car
size of car
type of car
color of car
8
"An object remains in motion or at rest unless an unbalanced force acts on it" is an example of
hypothesis
prediction
law
theory
9
In the gobstoppers lab, what was the independent variable?
Amount of gobstoppers
Temperature of water
Color of gobstoppers
Amount of water
10
The independent variable from the graph below is
height of the plant
amount of water
fertilizier
plant growth
11
The first step of the scientific method is
form a hypothesis
collect data
do an experiment
make an observation
12
What was the dependent variable in the exercise lab?
type of exercise
heart rate
how fast you did the exercise
time
