UEN Security Office
Technical Services Support Center (TSSC)
Eccles Broadcast Center
101 Wasatch Drive
Salt Lake City, UT 84112
(801) 585-6105 (fax)
Main Curriculum Tie:
For the each group of 2-4 students:
Background For Teachers:
Student Prior Knowledge:
Intended Learning Outcomes:
Step 2.Review the three parts of the water cycle with students. Tell students they will be building their own miniature water cycle in a bottle.
Step 3. In small groups, research and plan what will be necessary for a healthy start for a small ecosystem that students can add water to. They will be trying to make a small version of a place on earth that relies on the water cycle for survival.
Step 4. Some groups may choose to try a desert in a bottle. This may give them some interesting results as they observe the water cycle in action. Their observations and results will vary from one that uses peat moss and potting soil.
Step 5. Once groups have researched their materials, have them begin making a small terrarium. They should use the exterior, hard plastic base of their two liter bottle for this. Layer the materials they need, and plant their plant in the soil in the hard plastic base that was removed from the two liter bottle.
Step 6.Water the terrarium lightly. Invert the plastic bottle (that you cut the top off of) and insert it, shoulder area first, into the base making a sealed terrarium. You should not have to add more water.
Step 7. The violet or seeds or chosen plants should take up the moisture from the soil and release (transpire) it through the leaves. The water molecules will condense on the sides of the plastic bottle and "rain" into the soil.
Step 8.Record observations for two weeks. Observe the results daily and record finding in science journals. Ask them questions such as
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