
Controls and Variables
Authored by Jamieson Crosson
Science
9th Grade
NGSS covered
Used 34+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A study was done to find if different tire treads affect the braking distance of a car. What is the independent variable?
the brakes in a car
the braking distance of a car
different tire treads
different study times
Tags
NGSS.MS-PS2-2
NGSS.MS-ETS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A study was done to find if different tire treads affect the braking distance of a car. What is the dependent variable in this experiment?
car brakes
the braking distance
different tire treads
the time of the study
Tags
NGSS.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A study was done to find if different tire treads affect the braking distance of a car. What are some controls/constants that they need to have in this experiment?
The model of the cars used
The pavement conditions
The speeds the cars are traveling.
All of the above
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Four groups of rats are first weighed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats are weighed again to see if there has been a decrease. What is the independent variable?
The rats
The rats' weights
The rats' diets
The Vitamin A
Tags
NGSS.MS-LS1-5
NGSS.MS-LS2-1
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats’ masses are measured again to see if there has been a decrease. What is the dependent variable?
The rats
The rats' weight
The rats' diet
The Vitamin A
Tags
NGSS.MS-LS1-5
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats’ masses are measured again to see if there has been a decrease. What was a control/constant?
The rats
The rats' weights
The rats' diets
The Vitamin A
Tags
NGSS.MS-LS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The time it takes to run a mile depends on the person’s running speed. What is the independent variable?
The time it takes to run a mile
The person's running speed
The person's fitness level
The weather
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