Scientific Investigation

What does It mean to make an Observation?

• To learn by watching and seeing something and thinking about It

• To make an educated guess

• A quantity that does not change

• A quantity that does change

What is a Constant in an experiment?

• Something learned by watching and seeing.

• A quantity that changes.

• A quantity that does not change.

• An educated guess.

What is a Hypothesis?

• A quantity that does not change.

• A quantity that changes.

• Facts, numbers, or values that are obtained from the experiment.

• An educated guess.

True or False? The Independent Variable is the variable that is CHANGED by the researcher.

• True

• False

The Dependent Variable is the variable that

• is changed in an experiment.

• remains the same in an experiment.

• is measured in an experiment.

True or False? A prediction is what you expect to happen if your hypothesis is true?

• True

• False

What is the definition of a Conclusion in science?

• Summary of how your results support or deny your hypothesis

• What you believe will happen at the end of your experiment

• Procedures in an experiment.

• the facts, values and numbers collected in your experiment.

What skill is a scientist using when she listens to the sound that a whale makes?

• Making an observation

• Interpreting data

• Drawing conclusions

• Making a hypothesis

Which of the following hypotheses is written correctly?

• Frozen tennis balls will not bounce as high.

• If a tennis ball is frozen, It will not bounce as high as one that is not frozen.

• If a tennis ball is frozen, then It will not bounce as high.

• If I heat up a tennis ball It will bounce high.

When you decide whether or not the data supports the original hypothesis, you are:

• Making Observations

• Drawing Conclusions

• Forming a Hypothesis

• Asking Questions