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- 1. Multiple ChoiceWhen do scientists use a correlation instead of an actual experiment?when it is unethical to do the experimentwhen it is too expensive to do the experimentwhaen it is too hard to do the experimentall of the above
- 2. Multiple ChoiceDescribe the experimental group.The group that stays the samethe group that gets the treatmentthe group that is in its natural statethe group that changes
- 3. Multiple Choice
Josie was performing an experiment where she grew the same kind of tomatoes in the same soil and amount of water. She sat one in the sun and one in a closet for 14 days. What is the independent variable in Josie's experiment?tomatoessoilsunlightwater - 4. Multiple ChoiceWhich of the following hypotheses is written correctly?If a tennis ball is frozen, it won't bounce as high as one that is not frozen.If I heat up a tennis ball it will bounce high.If I freeze a tennis ball, then it will not bounce as high.Frozen tennis balls will not bounce as high.
- 5. Multiple ChoiceIn an experiment, the factor that we measure is called thecontrolled variableconclusionindependent variabledependent variable
- 6. Multiple ChoiceA scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable isthe gender of the alligatorthe male alligatorsthe temperaturethe incubator
- 7. Multiple ChoiceA scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable isthe incubatorthe temperaturethe size of the baby alligatorsthe gender of the baby alligators
- 8. Multiple ChoiceIn which step of the scientific method do we want to use graphs?communicate resultsasking questionsanalyze datamake a hypothesis
- 9. Multiple ChoiceA scientist who wants to study the effects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg. of fertilizer each day, and Plant C gets 10mg. of fertilizer each day. Which plant is the control group?plant BAll of themPlant CPlant A
- 10. Multiple ChoiceA conclusion reached on the basis of evidence and reasoning is a/an
..conclusiontheoryinferencehypothesis - 11. Multiple ChoiceThe best graph to use if I want to compare the price of six different cars would be a
...Pie graphBar graphData tableLine graph - 12. Multiple ChoiceA scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is...the temperature of the waterthe waterthe amount of salt in the waterthe number of plants in the water
- 13. Multiple ChoiceMr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.height of the rampdistance traveled by the ballmass of the ballweight of the ball
- 14. Multiple ChoiceMr. S. sets 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 ballweight of the ball
- 15. 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
- 16. 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 is the dependent variable?Type of plantWater, apple juice, milkPlant growth
- 17. Multiple ChoiceWhat is the first step in the scientific method?Make an observationDesign and conduct an experimentMake an hypothesisShare your results
- 18. Multiple ChoiceThis step comes after ask a questionRecord your resultsDesign and perform an experimentForm an hypothesisShare your results
- 19. Multiple ChoiceThe factors in an experiment that can be changed.variablesquantitative datahypothesissteps
- 20. Multiple ChoiceScientific reasoning requires a _____________ way of thinking based on gathering and evaluating evidence.objectivecircularlogicalsubjective
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