Scientific Method Jeopardy

Definitions Method Variables ? Other ?

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Define: Hypothesis

Answer

A proposed explanation to the scientific question

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Define: Manipulated Variable

Answer

The variable that is changed in the

experiment

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Define: Responding Variable

Answer

The variable that may change in response to the

manipulated variable

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Define: Controlled Variables

Answer

The variables that are purposefully kept the same throughout the

experiment

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Define: Operational Definition

Answer

A statement that describes how you are

going to measure a variable

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Place topics (below) in order:Hypothesis, Question,

Observation

Answer

Observation, Question, Hypothesis

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True or False:It is okay to fix the

hypothesis after the data has been taken

Answer

False

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True or False:It is okay to come up with a new question/experiment

after taking data

Answer

True

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After scientists complete their experiment, they

should always…

Answer

Repeat itand

Communicate their results

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A good experiment should raise more _________ than

it answers

Answer

Questions

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Will using Rogaine shampoo daily (for one month), increase hair

growth in 30 year old men?

What is the manipulated variable in this experiment?

Answer

The use of Rogaine shampoo

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Will increased phosphate levels in ponds effect the amount of

dissolved oxygen in the water?

What is the responding variable in this experiment?

Answer

The amount of dissolved oxygen in the pond

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What is the effect of water temperature on the time it takes

shrimp eggs to hatch?

Identify 2 controlled variables in this experiment

Answer

Date eggs were fertilizedParents of eggsWater quality

Amount of eggs in tankTank environment

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Does adding aspirin to the water of fresh-cut flowers make them

last longer?

Identify 3 controlled variables

Answer

Type of flowerAge of flower

Time flowers were cutWhere flowers were cut

Water qualityAmount of water

Amount of sunshine

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Does Duracell or Energizer batteries last longer in a

flashlight?

Identify both the manipulated and responding variables.

Answer

Manipulated: Type of battery in flashlight

Responding: Time until controller dies

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Suzie is investigating if temperature effects the growth rate of goldfish. She places 3 goldfish (all the same

age but different species) in 3 different temperature tanks and

decides to track their growth weekly for the next year.

What did she do wrong in this experiment?

Answer

She did not control the species of the fish

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Does adding aspirin to the water of fresh-cut flowers make them

last longer?

Write a hypothesis in the “If..then…because…” format

Answer

If we add aspirin to the water of fresh-cut flowers, then they will last longer because they will have nutrients to

grow.

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Royce noticed that he does better on tests when he gets a full 8

hours of sleep the night before. He wondered if the amount of

sleep obtained the night before effects test scores.

What steps of the scientific method did Royce complete?

Answer

Observation and Question

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Does the height of the ramp effect the speed of the toy car

rolling down it?

Write a hypothesis in the “If…then…because…” format

Answer

If the height of the ramp is increased then the speed of the toy car will increase because it will start with

more potential energy.

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Make your own scientific question! Identify the

manipulated and responding variables!

Answer

???

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