science variables
TRANSCRIPT
ScienceVariables
Tammy Morehouse
Experimental VariablesFor each question, there is one correct answer and a color associated with that answer. On the coloring page, each question number section should be filled in with that color!
Name _______________________________________________________ Date ______________________
# Experiment Answer 1 Answer 2 Answer 3
1A student constructs several terrariums to grow
plants. Each terrarium is exposed to a different
amount of sunlight each day. In order to determine
the ideal amount of sunlight, which of the following
variables must be held constant?
Growth rate
BLUE
Amount of
sunlight received
GREEN
Type of plant
ORANGE
2A student hypothesizes that green algae will grow
fastest when exposed to blue light. To test this
hypothesis, the student should design an
experiment with which independent variable?
Color of light
BLUE
Amount of light
per day
YELLOW
Color of algae
RED
3Sandy is conducting an investigation to find out
which food his dog likes best. Which is the
dependent variable in his investigation?
Color of the
dog’s dish
BROWN
Amount of food
eaten
GREEN
The type of food
given
PINK
4Camren designed an experiment to determine which
type of soil absorbs the most water. To ensure that
experiment results in valid data, each container
must
Contain the same
amount of soil
PURPLE
Contain soil from
the same place
RED
Be tested by the
same person
ORANGE
5In an experiment, Jackson tested to see how the
size of rocks affects the amount of dirt that
washes away when water flows downhill.
Which variable is the independent variable?
Amount of water
PURPLE
Type of dirt
BROWN
Size of the rocks
LIGHT BLUE
6Two students wanted to find out which of their toy
race cars would go the farthest down a ramp. Which
of these should be held constant if they want a fair
test of their cars?
Height of the
ramp
YELLOW
The weight of the
ramp
RED
The length of the
cars
BLACK
7You design an experiment to test the effect of
temperature on bacterial growth. You use three
bacteria cultures under three heat lamps at
different temperatures. What is the dependent
variable in this experiment?
Bacterial growth
RED
temperature
YELLOW
Length of the
experiment
PURPLE
8A student plans to conduct an experiment to
determine how a change in the pH of water affects
the population growth rate of algae. To ensure that
her experimental data are valid, she should
Vary the
temperature
BROWN
Hold the acidity
constant
BLACK
Use the same
species of algae
TAN
9A medical researcher hypothesizes that a new
medication can reduce high blood pressure. Which
of these would most likely be the dependent
variable in a study involving this medication?
Blood pressure
of the group
BLACK
The ages of the
group
YELLOW
The number in the
group
RED
10In an experiment about growth, some snapdragon
seeds were placed in dishes lined with moist paper
towels at differing temperatures. Which of these is
the independent variable in this experiment?
The number of
sprouts
BLUE
The type of seed
ORANGE
The temperature
of each dish
BROWN
© 2014 Tammy Morehouse
Experimental VariablesFor each question, there is one correct answer and a color associated with that answer. On the coloring page, each question number section should be filled in with that color!
Name _______________________________________________________ Date ______________________
# Experiment Answer 1 Answer 2 Answer 3
1A student constructs several terrariums to grow
plants. Each terrarium is exposed to a different
amount of sunlight each day. In order to determine
the ideal amount of sunlight, which of the following
variables must be held constant?
Growth rate
BLUE
Amount of
sunlight received
GREEN
Type of plant
ORANGE
2A student hypothesizes that green algae will grow
fastest when exposed to blue light. To test this
hypothesis, the student should design an
experiment with which independent variable?
Color of light
BLUE
Amount of light
per day
YELLOW
Color of algae
RED
3Sandy is conducting an investigation to find out
which food his dog likes best. Which is the
dependent variable in his investigation?
Color of the
dog’s dish
BROWN
Amount of food
eaten
GREEN
The type of food
given
PINK
4Camren designed an experiment to determine which
type of soil absorbs the most water. To ensure that
experiment results are valid data, each container
must
Contain the same
amount of soil
PURPLE
Contain soil from
the same place
RED
Be tested by the
same person
ORANGE
5In an experiment, Jackson tested to see how the
size of rocks affects the amount of dirt that
washes away when water flows downhill.
Which variable is the independent variable?
Amount of water
PURPLE
Type of dirt
BROWN
Size of the rocks
LIGHT BLUE
6Two students wanted to find out which of their toy
race cars would go the farthest down a ramp. Which
of these should be held constant if they want a fair
test of their cars?
Height of the
ramp
YELLOW
The weight of the
ramp
RED
The length of the
cars
BLACK
7You design an experiment to test the effect of
temperature on bacterial growth. You use three
bacteria cultures under three heat lamps at
different temperatures. What is the dependent
variable in this experiment?
Bacterial growth
RED
temperature
YELLOW
Length of the
experiment
PURPLE
8A student plans to conduct an experiment to
determine how a change in the pH of water affects
the population growth rate of algae. To ensure that
her experimental data is valid, she should
Vary the
temperature
BROWN
Hold the acidity
constant
BLACK
Use the same
species of algae
TAN
9A medical researcher hypothesizes that a new
medication can reduce high blood pressure. Which
of these would most likely be the dependent
variable in a study involving this medication?
Blood pressure
of the group
BLACK
The ages of the
group
YELLOW
The number in the
group
RED
10In an experiment about growth, some snapdragon
seeds were placed in dishes lined with moist paper
towels at differing temperatures. Which of these is
the independent variable in this experiment?
The number of
sprouts
BLUE
The type of seed
ORANGE
The temperature
of each dish
BROWN
© 2014 Tammy Morehouse
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© 2014 Tammy Morehouse
Credits:Thank you to the
following for the creation and use of their digital
papers, clip art, and fonts.
Thanks:To my family for
putting up with my obsession with TpT.
Terms of Use:© 2014 Tammy Morehouse. All rights reserved.
Purchase of this unit entitles the purchaser only the right to reproduce the pages in limited quantities for classroom use only. Duplication for an entire school, an entire school system or commercial purposes is strictly forbidden without written permission from the publisher.