What is a control group and is it always needed in an experiment?
1 answer:
Answer:
yes, it is always needed
Explanation:
a control group is what you choose to control in an expirement its the amount of somthing you don't change
Hope this helped
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i don't understand but atoms are made of electrons an protons and neutrons..
Answer: Lithium (Li) 16.373%
Chlorine (Cl) 83.627%
Explanation:
Answer:
this is a required answer. look it once.
Answer:
They are in a periodic table
If its a solid it will stay and resist but if it isn´t then it will return to its original shape
