What is gravity?
Gravity is the invisible pull that makes everything fall toward the ground. On Earth it pulls all objects down at the same rate, so without air a feather and a hammer would actually land at the same time. In this experiment, kids can drop objects and watch gravity in action.
Gravity on other worlds
Gravity is stronger on big worlds and weaker on small ones. On the Moon you would feel only about one-sixth of Earth's gravity, so you could jump six times higher; on giant Jupiter you would feel much heavier. Kids can switch worlds here and see the difference for themselves.
Frequently asked questions
What is gravity for kids?
Gravity is the force that pulls objects toward each other. On Earth it pulls everything toward the ground, which is why things fall when you drop them and why we stay on the floor instead of floating away.
Do heavy things fall faster than light things?
No. Without air resistance, all objects fall at the same speed no matter their weight. A feather falls slowly only because the air slows it down; on the Moon, where there is no air, a feather and a rock fall together.
Why is gravity different on the Moon?
The Moon is much smaller and lighter than Earth, so its gravity is weaker - about one-sixth of Earth's. That is why astronauts on the Moon can bounce and jump so high.