Water, Water Everywhere
ANSWER:
MORE THAN 97% OF EARTH'S WATER IS FOUND IN ITS OCEANS
Model it!
Materials:
- One-liter beaker (If you do not have a beaker, use a large jar and a measuring cup)
- Two small jars
- Water
- Measuring cup that measures in milliliters (ml.)
- Small graduated cylinder or spoon to measure one ml.
Procedure:
- Measure exactly one liter (1000 ml.) of water and pour it into one jar. This water will represent all the water on Earth.
- Determine how many ml. of water would represent 1% of the water in the jar. This will represent the water in the ground, lakes, streams, clouds, glaciers, etc.
- Determine how many ml. of water would represent 2.2% percent of the water in the jar. This will represent the frozen ice caps.
- Measure the amount your determined in the above step and pour it in the remaining jar.
- The water remaining in the beaker represents the ocean water on Earth.
Congratulations!
You have just made a very simple model of how water is distributed on
Earth.
Analysis:
- Write a short paragraph explaining your model.
- Graph your data using either a pie or bar graph.
Sample pie graph
Sample bar graph
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August 18, 2005
by: Glen Westbroek |
