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What would be an independent variable in an experiment where the testable question is, Which paper towel brand is the strongest?
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
You can use electricity to make a magnet.
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
The north pole of one magnet attracts
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
A substance consisting of a coil of wire with an iron core and is only magnetized when an electric current flows through it is called
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
Which variable values should be the same for all groups in the experiment?
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
What do magnets do?
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
Biel believes that her plants grow so well because she is always playing music in her room. What is a question she might ask to test this?
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
Which variable do you test (the effects of) in a scientific investigation? Hint: This is the same variable that you will change for every group.
Does music have an effect on plant growth?
Attract iron objects.
he south pole of another magnet.
electromagnet
Control Variable
true
brand of paper towel
Independent
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