Leaves fall down. They never fall up. Gravity pulls everything toward Earth.
Earth is a big magnet. It pulls objects. This pull is gravity. It works on apples, rocks, and leaves. It keeps our feet on the ground. It keeps the moon near Earth.
Leaves grow on trees. They start green. They use sunlight for food. When autumn comes, days grow short. Trees stop making food. The leaf stem gets weak. The leaf dries out. It turns brown or red. The wind blows. The stem breaks. Gravity pulls the leaf to the ground.
Why not up? Air is thin. Leaves are heavy compared to air. Gravity is stronger than the wind's push upward. Nothing pushes leaves to the sky. Space has no air. Gravity holds the atmosphere close to Earth. Without gravity, everything would float away.
Nature follows rules. Gravity is a constant rule. It makes the world predictable. We walk on ground. Water stays in cups. Leaves land on soil. Soil feeds the tree. The cycle continues.
Do you like watching leaves fall?