Water and Light

Note: No matter where the seeds have germinated you may replant them after the seedlings are four or five inches tall by slowly and delicately rinsing most of the dirt off.

• After you have started a number of seedlings you can start assigning them to different conditions. Label one group "A" and the other group "B" . Put "A" in a sunny place and put "B" in a darker place. Always water "A" and "B" the same amount. Have the students write predictions about what will happen. Later, have the students describe and record in writing what happened to "B".

• Next, label one group "X" and the other group "Y". Water "X" everyday and never water "Y". Keep both groups in the exact same place. Compare both germination and seedling survival in this way. Model for them how to record each step in their journals. Write predictions and see the results! Where has the water gone when "X" is dry?

• Keep a vine near a window. Mark one side of the pot "M" and the other side "O". Face the side marked "M" to the window. Show students that many plants will lean toward a window over the course of a few days if they are not receiving enough light. Have the students record that the side marked "M" is facing the window. If you turn the plant so that "O" faces the window the leaves turn back around to face the window again. Try this with both the seedlings and mature vine plants.

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