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Main Curriculum Tie:
Background For Teachers:
Student Prior Knowledge:
Intended Learning Outcomes:
Step 2. Tell students that each group has the responsibility to work together and, using the tubes and every person in the group, get the marble from one wall of the room to the opposite wall. Remind the students that they will need to discuss their strategies to accomplish this objective. If, during their attempt to move from one wall to the other, the marble falls to the ground, (remember, gravity is very powerful!) they will need to start over. The first team to reach their goal needs to stand in a line and yell "gravity" together.
Step 3. Have students sit with their group as you discuss what occurred.
Step 4. Tell students that they will now compare the motion of an object rolling up AND down a hill using a piece of rain gutter, and record their results.
Step 5. Have each group fold a piece of paper into eight squares, four horizontal boxes by two vertical boxes. Label each box across the top with one of the following:
Step 6. Each group will conduct experiments and record how far their marble rolls at each incline in the boxes on their page. They will need to set some criteria about the amount of force applied (push) to get the marble going, especially when they are rolling uphill. Remind them to keep the forces the same so their results are valid.
Step 7. At the end of the experiments, have each group share their results. You might want to post their charts to allow the class to view everyone's data.
Ask students questions about the activity:
Step 8. Have students record their observations in their science journals and use correct vocabulary to summarize.
Review data charts for experiments to see if students have grasped the principle of gravity making things easy or difficult.
Collect science journals and look for accurate observations and statements.
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