Friday, April 25, 2008

By Golly By Gum




One of my favorite lessons for reinforcing Planning and Conducting an Experiment is By Golly by Gum. Talk about high interest. All of the skills and processes of science are used and the students never get tired of this mini unit.
Materials:
"regular" stick gum- make sure all brands are the same
Buble gum- again make brand and flavors the same
Scale to weigh gum before and after chewing.

Welcome scientists, today you will create your own experiment using bubble gum- you must follow the Planning and Conduction an Investigation.

Purpose / Question you want to answer:
What do you want to find out???
Which type of gum, regular stick gum (Wrigley's Spearmint) or bubble gum (Bazoka) has more sugar?

Hypothesis/Prediction:
What do you think will happen??

The Experiment:
Materials:
List all materials you will use

Procedure:
List all the steps you took to do the experiment
Be sure to idenity:
the controlled variable (kept the same)
the manipulated variable (changed)
and the responding varivalbe (what happened as a result of the experinment)

Do the Experiment
Record data/ notes/ graphs

Analysis:
What did the data tell me? Can I figure out what it all means?

Conclusion:
So what did you learn from doing the experiment?
Can you now create another experiment using gum?
How will the amount of time gum is chewed effect the amount of sugar?
What else can you come up with??

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