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Lesson 1 - Dependent Variables
Test Description: SPI 0807.Inq.1-B
Instructions: Answer all questions to get your test result.
1) Austin wants to test how the amount of sugar in one brand of cereal affects the behavior of young children that eat that brand of cereal for breakfast.
A
the amount of cereal
B
the amount of sugar
C
children's behavior
2) Carmen designs an experiment to determine how surface type affects how far a ball will roll across a variety of surfaces. What is the dependent variable?
A
the lengths of the surfaces
B
how far the ball rolls
C
the type of ball chosen
3) A scientist places corn plants at different distances from the light. What would the dependent variable be of the experiment?
A
Plants
B
Light
C
Plant Growth
4) A scientist uses 3 different sour candies to record the kids facial expressions. What would the dependent variable be?
A
Type of Candy
B
Color of Candy
C
Facial Expressions
5) You want to test a new drug that supposedly prevents sneezing in people allergic to grass.
A
grass
B
drug
C
sneezing
6) You want to see if playing music makes plants grow taller. What is the dependent variable in this experiment?
A
Height of plant
B
Building plant is in
C
Music being played
7) A florist wants to see if Product X will extend the life of cut flowers so that they last longer. What is the dependent variable?
A
Florist years of experience
B
Life of flowers
C
Product X
8) An entomologist (bug scientist) wants to determine if temperature changes how many times a cricket chirps. What is the dependent variable?
A
Number of times a cricket chirps
B
Temperature
C
Entomologist
9) You think that a certain part of your brain is important in memory. To test this, you will remove this part of the brain from rats and see if they remember how to get through the maze. What is the dependent variable in this experiment?
A
Type of rat
B
Remembering how to get through the maze
C
Removal of a certain part of the brain
10) You want to measure the effect of different amounts of oxygen on the rate of yeast growth. What is the dependent variable?
A
Amount of Oxygen
B
Rate of yeast growth
C
Type of Yeast
11) A soap manufacturer wants to prove that their detergent works better to remove tough stains. What is the dependent variable?
A
Machines used to make product
B
Detergent
C
Removal of Stains
*select an answer for all questions
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