1
Q
What is the first step in a scientific experiment?
A
Start by asking a question.
2
Q
Why do scientists change only one variable at a time?
A
To see what effect it has clearly.
3
Q
What should you do after observing what happens?
A
Record your results.
4
Q
Why is it important to repeat an experiment?
A
To check your results are reliable.
5
Q
What is a conclusion?
A
An explanation of what you found out and why.
02 S1 Chemistry
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