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The students will experiment with various objects observing how gravity affects the objects. Students will test the effects of gravity on themselves and other objects.
When you throw an object in the air, you exert a force that causes it to fly. It continues to fly until the effects of gravity become stronger than the force you used. Gravity pulls the object back toward Earth. Gravity is strong and pulls objects without touching them. Gravity is always working. It is a constant force, which means it never stops! The farther an object falls, the faster gravity makes it travel. Gravity can work in our favor; when we ride a bike down a hill, we go faster and faster as we near the bottom. Gravity can also work against us; when we ride a bike up a hill and it becomes more difficult to pedal.
Very light objects, such as feathers or seeds, fall slowly or even seem to float in the air. They are so light that air can hold them up against the force of gravity. Air and air resistance can cause objects to fall slowly to the ground. Air can slow an object, but it cant stop gravity.
A common misconception is that heavier or larger objects will fall faster than objects that are smaller or lighter.
(P) When science investigation is done the way it was done before, we expect to get a very
(N) Sometimes people arent sure what will happen because they dont know everything that might be having an effect.
(C) In doing science, it is often helpful to work with a team and to share findings with others. All team members should reach their own individual conclusions, however, about what the findings mean.
Invitation to Learn:
Why Things Fall
How High Can You Jump?
Lesson and Activity Time Schedule:
Activity Connected to Lesson:
Writing Fun with Gravity