Scientific Method Variables

Quiz
•
Science
•
8th Grade
•
Hard
+3
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?
the amount of carbon dioxide in each container
the number of plants in each container
the amount of water provided to the plants
the height of each plant after a period of time
Tags
NGSS.MS-LS1-5
NGSS.MS-LS2-1
NGSS.MS-LS2-4
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Researchers are developing a new fertilizer designed to improve the growth of endangered Hawaiian plants. The fertilizer was applied to one hundred plants in a greenhouse. The temperature, humidity and amount of water were kept constant. Which is best for the researchers to do next?
A compare plants that received fertilizer plants that received none
B begin selling the fertilizer to gardeners living in hot, dry climates
C change the conditions in the greenhouse and retest the fertilizer
D test the fertilizer on plants that are adapted to cooler climates
Tags
NGSS.MS-LS1-5
NGSS.MS-LS2-1
NGSS.MS-LS2-4
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The “Normal” group in an experiment. You can COMPARE your results to this one (nothing happened to it).
Example: If you are testing the effect of the amount of water on plant growth, this group of plants receives the recommended amount of water.
Constant
Variable
Control Group
Experimental Group
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following is NOT a characteristic of a hypothesis?
An idea that is given as an “If...then...statement”
An idea that can be proven or disproven
An idea that can never be proven
A testable idea that leads to a scientific investigation
Tags
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why do we want to test one variable at a time?
Because it is hard to setup a data table with more
To know what is causing the changes
It is what has always been done
No one really knows
Tags
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his independent variable?
Type of reward
Praise
Type of dog
Amount of time the dog follows commands
Tags
NGSS.MS-ETS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.
What was the independent variable?
The Song
The Reed
The Applause
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