Scientific Investigation - ACT Science

What is a hypothesis?

What is the purpose of an experiment?

What is an independent variable?

What is a dependent variable?

What is a control group?

What are constants?

Why are constants important?

What is a variable?

What does it mean to manipulate a variable?

What does “trial” mean in an experiment?

What is replication?

Why is repeating experiments important?

What is sample size?

Why does a larger sample size make results more reliable?

What is experimental error?

What is a systematic error?

What is a random error?

What is bias in an experiment?

What does it mean if an experiment is valid?