Practice

Compare your results and hypothesis. Decide if your hypothesis is right or wrong. Tell what you decide.

the answer to your question; a summary of what you have learned from an experiment

The more water in the bottle the lower the sound.

part of an experiment that does not contain a variable; all conditions are kept normal; used as a COMPARISON

Empty bottle means high sound, a little water means lower sound, half full means ever lower sound, and full means lowest sound.

Organize into charts, tables, drawing, and diagrams. You can decide what the information means.

A summary of the data you have collected (graphs, tables, charts, photos, etc.); all your observations from the experiment

the factor that changes (measured) as a result of the experiment; the effect

Tap each bottle with a spoon.

Test your hypothesis. You may need to do this step more than once to see if the results are the same each time.

An educated, testable, guess

If the amount of water is more, then the sound will be lower when the bottle is tapped.

Tell what you think is the answer to the problem

factor in an experiment that a scientist purposely changes; the cause

Does the size of a bottle affect the sound made when the bottle is topped?