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- 1. Multiple ChoiceA study was done to find if different tire treads affect the braking distance of a car.
What is the independent variable (what is changed)?Tire treadCarBraking distanceDuck sauce - 2. Multiple ChoiceThe height of bean plants depends on the amount of water they receive.
What is the independent variable?Height of plantsCondition of soilSalt or fresh waterAmount of water - 3. Multiple ChoiceThe higher the temperature of the air in the oven, the faster a cake will bake.
What is the independent variable?Time to bake a cakeType of cakePlace in the ovenTemperature of the oven - 4. Multiple ChoiceStudents measured the temperature of the water at different depths in Lake Skywalker and found that the temperature varied.
What is the independent variable?Lake locationDepth of the measurementTemperature of the waterMeasuring device - 5. Multiple ChoiceFour groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats’ masses are measured again to see if there has been a decrease
What is the independent variable?Food they receivedType of vitaminAmount of Vitamin ARats masses - 6. Multiple ChoiceLemon trees receiving the most water produced the most lemons.
What is the dependent variable (what is measured)?Amount of lemonsSalt or fresh waterAmount of waterType of citrus - 7. Multiple ChoiceAn investigation found that more bushels of potatoes were produced when the soil was fertilized more.
What is the dependent variable?Type of fertiliserBushels of potatoes producedWho fertilised the potatoesWhere they were growing - 8. Multiple ChoiceThe time it takes to run a kilometre in a sweet ParkRun depends on the person’s running speed.
What is the dependent variable?Type of raceTime to run a KMPersons running speedLocation of ParkRun - 9. Multiple ChoiceA student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.
The independent and dependent variables are? (in correct order)Mass of plane, distance it flewType of plane, paperclipsDistance it flew, mass of planeMass of plane, amount of paperclips - 10. Multiple ChoiceTwo groups of students were tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.
The independent and dependent variables are? (in correct order)Type of problems, use of calculatorUse of calculator, speed of completionGroup, speed of completionSpeed of completion, intelligence of student - 11. Multiple ChoiceStudents of different ages were given the same puzzle to assemble. The puzzle assembly time was measured.
The independent and dependent variables are? (in correct order)Size of the puzzle, difficulty of the puzzleGender of students, age of studentsAge of the students, puzzle assembly timePuzzle assembly time, age of the students - 12. Multiple ChoiceOne tank of gold fish is fed the normal amount of food once a day. A second tank is fed twice a day. A third tank is fed four times a day during a six week study. The fish’s weight is recorded daily.
What should you keep the same?Amount of foodSize of the tankThe weight of the fish at the endExperimenter's hair colour - 13. Multiple ChoiceAn experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...The type of plantThe amount of sunlightThe type of musicThe type of liquid
- 14. Multiple ChoiceAn experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?Type of plant, amount of music, and sunlightWater, apple juice, milkPlant growth
- 15. Multiple ChoiceMr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.Distance traveled by the ballHeight of the rampMass of the ball
- 16. Multiple ChoiceMr. B set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?Distance traveled by the ballHeight of the rampMass of the ballLiver Soup
- 17. Multiple ChoiceMr. B set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the controlled variable?Distance traveled by the ballHeight of the rampMass of the ball
- 18. Multiple ChoiceThe librarians want to know which students are checking out what types of books. They are testing "Which type of book do 7th graders check out most often: fiction or nonfiction?" The genre of the book isthe independent variablethe dependent variablea constant variablea waste of money
- 19. Multiple ChoiceAn experiment is set up with ten pots to test the effective of fertilizer on plant growth. 5 pots have fertilizer added to the soil, 5 pots do not have fertilizer added to the soil. Each pot has 1 spider plant and 5 cups of soil. The pots are watered once a week with 1/2 cup of water. What is something that would need to be true of the spider plants?The plants should not be the same sizeThe plants should be the same speciesThe plants cannot grow with fertlizerThe plants are the independent variable
- 20. Multiple ChoiceMr. Bayliss needs your help: He needs to find the constant variables for his experiment. He is trying to determine what shampoo leaves his beard the softest. Which variable would be controlled?Type of ShampooSoftness of Mr. Bayliss' beardAmount of ShampooHe doesn't need any constant variables
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