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Controls and Constants

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# Controls and Constants - PowerPoint PPT Presentation

Controls and Constants. Review. In an experiment, there is something that a scientist is testing – they control this…. Review. In an experiment, because the scientist is changing this independent variable, this is going to change and the scientist will measure that change…. Review.

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### Controls and Constants

Review

In an experiment, there is something that a scientist is testing – they control this…

Review

In an experiment, because the scientist is changing this independent variable, this is going to change and the scientist will measure that change…

Review

This is an educated guess of what is going to happen during an experiment – the scientist forms this at the beginning of the experiment….

Did You Get Them Right?
• Independent Variable
• Dependent Variable
• Hypothesis
Constant

Constant: something that scientist makes sure is the same throughout the experiment

Ex. Watering the plants the same amount of water or making sure you are testing the same person every time

Control

Control: The part of the experiment that the scientist doesn’t change or add the variable to

Ex. The plant with the white light

Conclusion

The results of the experiment; is your hypothesis “right or wrong”?

Activity!

We have done many labs in this class…

We have also talked about a lot of different experiments – with your partner, identify each part of each experiment – the first group to finish correctly WINS!