Today you are going to design an experiment to test a variable of your choice relating to brine shrimp.
Suggestions for variables (or come up with your own area) that affect the hatching rate of brine shrimp eggs:
- Temperature
- Salinity (salt content) of the water
- Size of container
- Type of container
- Ratio of eggs to water
If you are working with salinity, a heaping spoonful of salt in a liter of spring water will give you a salt concentration of 25 parts per thousand. You can vary the amount of salt to change the concentration.
In your composition notebook you should already have a this lab titled and a 10 sentence section titled 'Background.'
Working with your group members you job today is to come up with your:
Problem- (Stated as a question)
Hypothesis- (What you are predicting what will happen in your experiment)
Materials- (A list of the materials you will need for your experiment)
Procedure- (A DETAILED NUMBERED list of the steps of your experiment)
On the index card Mrs. Keller provides, write a list of materials your group will need for Thursday. Be complete and specific as possible. Turn this in to Mrs. Keller.
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