Experiment #1: Day 1


I have 3 plastic tubs (a small, medium and large size) and 3 growing alligator toys. I will measure how well each alligator grows for 5 days.



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Prediction: (This is what I think will happen…)
I think that the alligator in the big tub of water will grow the biggest.

Materials for the Experiment
• 3 growing alligator toys from the store
• 1 small plastic tub (6 quart size)
• 1 medium plastic tub (15 quart size)
• 1 large plastic tube (32 quart size)
• Graph paper
• Water


Procedure: (This is what I did…)
1. Fill each plastic tub with tap water. The small tub holds 6 quarts of water. The medium tub holds 15 quarts of water. The large tub holds 32 quarts of water.


2. Let the water sit in the tubs overnight so that the temperature of the water in each tub was the same.


3. Measure the size of all of the growing alligators using graph paper before putting them in the water. I put the alligator on the graph paper and traced around it with a pen. Then I counted how many squares there were between the tip of the alligator’s nose and the end of the tail. Each alligator measured 18 squares.


4. Place each alligator in the water and wait for one whole day before taking it out of the water.


5. Each day I took the alligator out of the tub and measured how much it grew. I put the alligator on a new piece of graph paper and traced around it. Then I counted the squares and wrote down how big it was on my data table.


6. I repeated this for 5 days and wrote down what I discovered each day. You can see this on my data table called “How Much Water is Best?”





Posted: Sun - February 13, 2005 at 09:49 AM        

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