A student wants to investigate the effect of different liquids on the height of the plant. State 2 variables that should be controlled.
Any two: (Type of soil, volume of liquid, intensity of light, type of plant)
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20
A student wants to investigate the effect of different liquids on the height of the plant. Determine the independent variable.
Type of liquid
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seesaw
Swap points!
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magnet
Take 20 points!
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fairy
Take points!
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25
thief
Give points!
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A doctor gave the same patient, different numbers of pills each day, the doctor measured the level of histamine (chemical) in his body. Determine the independent variable.
Number of pills
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20
A student wants to find out if sleeping more would affect his test scores. Identify the independent variable.
Sleeping hours
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lifesaver
Give 10 points!
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gift
Win 10 points!
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gift
Win 15 points!
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banana
Go to last place!
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A student wants to find out if sleeping has an effect on his test scores. Identify the dependent variable.
Test score
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heart
Other team wins 25 points!
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gift
Win 10 points!
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rocket
Go to first place!
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thief
Give points!
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25
20
A student wants to investigate the effect of different liquids on the height of the plant. Determine the dependent variable.
Height of plant (cm)
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20
A study was done to find if different tire treads affect the braking distance of a car. Identify the independent variable
Tire tread
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20
If I increase the volume of water, then the height of the plant will increase. (What is missing in this hypothesis?)
The scientific reasoning
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20
A doctor gave the same patient, different numbers of pills each day, the doctor measured the level of histamine (chemical) in his body. Determine the dependent variable.
Level of histamine
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20
What is a hypothesis?
It is a statement of what you believe will happen based on the information you have gathered.
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What is the effect of increasing the volume of water on the plants growth. (What is missing in this research question)