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- 1. Multiple ChoiceWhen experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?DependentIndependentControl
- 2. Multiple ChoiceA student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.Diameter of the ballForce acting on the ballHeight that the ball bouncesHeight from which the ball is dropped
- 3. Multiple ChoiceJessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.
What is the independent variable?Amount of energyType of DrinkThe food coloringThere isn't one - 4. Multiple ChoiceJessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.
What is the dependent variable?Amount of energy100 classmatesType of DrinkThere is none - 5. Multiple ChoiceWhat would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?the paper usedthe type of paper airplanethe distance of each plane's flighthow hard the plane is thrown
- 6. Multiple ChoiceA custodian notices some dirty tables and wants to know what's the best cleaner. He uses a new spray cleaner to remove the green slime left by students on half of his tables and water on half of his tables. Identify the independent variable.type of cleanerthe new cleanerthe green slimethe effect of the cleaner
- 7. Multiple ChoiceThis part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.experimental groupcontrol groupdatavariables
- 8. Multiple ChoiceThis variable in an experiment is the one being deliberately changed by the scientist.dependent variableindependent variabledatacontrol group
- 9. Multiple ChoiceA comprehension test was given to students after they had studied textbook material either in silence or working together.
What is a possible control variable?Comprehension Test ResultsThe thickness of the text bookAll students working in SilenceNumber of students working together and in Silence - 10. Multiple ChoiceFor Julie to make 16 muffins, she need 2 cups of flour. To make 32 muffins she needs 4 cups of flour. What is the dependent variable?number of muffinscups of flour16 muffinschocolate chips
- 11. Multiple Choice
ABCD - 12. Multiple ChoiceEverything starts with an observation or a questionTrueFalse
- 13. Multiple ChoiceHow many variables do we want to be testing at one time?1234
- 14. Multiple Choice
What does the independent variables' definition, and how many should there be?
what the scientist thinks; 1
what the scientist observes; 1
what the scientist changes; 1
none of the above
- 15. Multiple Choice
Constants should be...
different
same
kind of the same
none of the above
- 16. Multiple Choice
Controls don't
receive experimental treatment
keep things the same
keep the experiment the same
keep procedures the same
- 17. Multiple Choice
Select ALL choices that are true regarding experiments.
contains controls and variables
test the hypothesis
used to test your variables
ensure experiments are valid
- Answer choicesTagsAnswer choicesTags