Tuesday, March 15, 2011

Is it alive Investigation (Day 1)

Today students looked at two unknown samples (Y and Z) using a dissecting microscope. Next they did an experiment with sample Y to see if adding water and sugar would create any reaction. The results were mixed and students came up with some of the own hypotheses for how to change the results.

For homework:

With your partner (or individually and you can decided when you get to class which experimental set up to use) answer the following questions:

How many grams of sample Y will you use? (0.1g to 3g)
How many grams of food X will you use? (0.1g to 3g)
How many mL of water will you use (10mL-30mL)
What temperature will the water be? (10 degrees C to 100 degrees C).

Tomorrow you will do a second balloon test using these parameters. We will also do the balloon test on sample Z as a class.

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