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WorksheetsScientific Variables
Total questions: 15
Worksheet time: 8mins
Question #2: A bug repellant is sprayed on one arm and the other is not sprayed. The number of bug bites is recorded after 2 hours. What is the independent variable?
How much the bites itch
Bug repellant
Number of bug bites
Question #2: A bug repellant is sprayed on one arm and the other is not sprayed. The number of bug bites is recorded after 2 hours. What is the dependent variable?
How much the bites itch
Bug repellant
Number of bug bites
Question #3: Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and sleeps 6 hours the night before the test. Afterwards, they compare their scores. What is the independent variable?
Amount of sleep
Test score
Twin sister
Question #3: Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and sleeps 6 hours the night before the test. Afterwards, they compare their scores. What is the dependent variable?
Amount of sleep
Test score
Twin sister
Question #4: Group A exercises for a month. Group B does not exercise. They measure the amount of weight they gained. What is the independent variable?
Amount of weight gain
Amount of exercise
What they wear while exercising
Question #4: Group A exercises for a month. Group B does not exercise. They measure the amount of weight they gained. What is the dependent variable?
Amount of weight gain
Amount of exercise
What they wear while exercising
Question #4: What is the control in this experiment?
Group A
Group B
Amount of exercise
Amount of weight gain
Question #5: One math class studies for an assessment while the math class next door does not. The scores of the two classes are compared. What is the independent variable?
What the students ate
Amount of studying
Test scores
Question #5: One math class studies for an assessment while the math class next door does not. The scores of the two classes are compared. What is the dependent variable?
What the students ate
Amount of studying
Test scores
Question #5: What should be a constant in this experiment?
What the students ate
Amount of studying
Test scores
Question #6: One plant is given sunlight every day. Another plant is not given any sunlight. After 3 weeks, we measure how tall the plant is. What is the independent variable?
Amount of sunlight
Amount of water
Plant growth
Question #6: One plant is given sunlight every day. Another plant is not given any sunlight. After 3 weeks, we measure how tall the plant is. What is the dependent variable?
Amount of sunlight
Amount of water
Plant growth
Question #7: One plant is given sunlight for 12 hours a day. Another plant is not given any sunlight. After 3 weeks, we compare how green each plant looks. What is the independent variable?
Amount of sunlight
How green is plant is
Type of soil
Question #7: One plant is given sunlight for 12 hours a day. Another plant is not given any sunlight. After 3 weeks, we compare how green each plant looks. What is the dependent variable?
Amount of sunlight
Type of soil
How green each plant is
Questions 6 & 7: What changed between Question #6 and Question #7?
The independent variable
The dependent variable
