BrainPop Scientific Method

What's the difference between a hypothesis and a theory?

• "Theory is another word for "fact"; hypothesis is another word for "guess".
• Hypothesis can't be proven; theories can.
• Theories have been confirmed through tests; hypotheses haven't.
• Theories contain many hypothesis; a hypothesis only contains one theory.

If you were running an experiment to determine the temperature at which beans sprout the fastest, what would be the variable?

• The number of beans you plant
• The height of the sprouts you grow
• The amount of water you give the beans
• The temperature at which each bean is kept

You should run an experiment several times to make sure your results are consistent. In the preceding phrase, what does "consistent" mean?

• Obvious
• Perfect
• Unchanging
• Testable

What might cause a theory to change over time?

• New laws passed by the government
• New but untestable ideas
• Changes in public opinion
• The discovery of new evidence

Which of the following is a testable hypothesis?

• Roses are more beautiful than violets.
• A plant needs at least five hours of sunlight per day to grow.
• Ice cream is delicious.
• Humans will someday land on Mars. 

What happens if you test a hypothesis multiple times and the data doesn't support your prediction?

• Change the data to support your prediction.
• Run the experiment again until you get the results you're looking for.
• Conclude that your hypothesis cannot be proven.
• Re-think your hypothesis. 

Place the following steps in sequence: A) Recognizing a problem; B) Testing a hypothesis; C) Drawing Inferences

• A, C, B
• A, B, C
• B, C, A
• C, B, A

In the phrase, "The scientific method is an analytic process for determining why things happen," what's the best synonym for "analytic"?

• probable
• amazing
• incoherent
• logical

What must you do before you make a hypothesis?

• Run an experiment
• Make observations
• Form a theory
• Draw conclusions

10. What is the term for the ONE thing YOU change in an experiment?

• Dependent Variable
• Independent Variable
• Hypothesis
• Controlled Variable