What is the difference between a hypothesis and a conclusion?
A hypothesis is what you think MIGHT happen in the experiment. A conclusion is what DID happen in the experiment.
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True or false: Scientists always have to be right.
FALSE - You learn from your mistakes.
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Look at the following research question. How fast will ice cream melt at different temperatures? Identify the independent and dependent variables.
Independent variable: different temperatures, Dependent variable: how fast it melts
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How many independent variables can you have in an experiment?
One
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Something in an experiment that will change is known as aâĶ
variable
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baam
Lose 15 points!
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magnet
Take 20 points!
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rocket
Go to first place!
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baam
Lose 25 points!
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seesaw
Swap points!
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shark
Other team loses 20 points!
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gift
Win 15 points!
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lifesaver
Give 25 points!
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A group of subjects that do not receive any special treatment in an experiment so you have ânormalâ results for comparison is known as aâĶ
control group
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baam
Lose 25 points!
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fairy
Take points!
5
10
15
20
25
shark
Other team loses 20 points!
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baam
Lose 25 points!
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What do you call the series of steps that a scientist follows to solve a problem?
scientific method
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The variable in an experiment that you measure is known as theâĶ
dependent variable
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The variable that you change on purpose in an experiment is known asâĶ
the independent variable
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James wants to know if the type of gasoline put in a car affects how fast the car can drive. What is the independent variable?
Type of gasoline
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Look at the following research question. How can different brands of soap affect bubble size? Identify the independent and dependent variables.
independent variable: brand of soap, Dependent variable: bubble size
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15
Angelina set up an experiment to see how the mass of different marbles affects the distance each marble rolls off a ramp. Identify the independent variable.
The mass of different marbles
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Marcos wants to know if the type of gasoline put in a car affects how fast the car can drive. What is the dependent variable?