The Moon · ages 4 to 12

Could you jump higher on the Moon?

Yes, much higher. On the Moon, one good jump would take you higher than your front door. Here is why, in words kids can follow.

Pixel the robot guessed first: “On the Moon you would float away like a balloon!” Was Pixel right? No. You would come back down, just slowly.
The short answer: the Moon pulls you down much less than the Earth does, so the same jump goes about six times higher and lasts about six times longer.

What is gravity?

Everything pulls on everything else. Big things pull hard, and the Earth is very big, so it pulls you toward the ground all the time. That pull is called gravity. You feel it every time you jump and come back down.

The Moon is much smaller than the Earth. Its pull is only about one sixth as strong. Have you ever taken off a heavy backpack after a long walk? Your legs suddenly feel light and springy. On the Moon you would feel like that all the time.

Book page: Why can astronauts jump so high on the Moon? with a labeled diagram of an astronaut jumping on the Moon
A page from 100,000 Whys for Curious Kids (coming October 13, 2026).

So why didn’t astronauts fly away?

Because the Moon still pulls. It just pulls more gently, so you rise higher and fall back slowly, landing softly. The Apollo astronauts found that hopping, like kangaroos, was often easier than walking in their bulky suits.

For grown-ups: your mass stays the same on the Moon, but your weight drops to about 17% of what it is on Earth. Leg muscles built for Earth feel overpowered, so both jump height and hang time grow roughly sixfold.

Try it at home
  1. Jump as high as you can next to a wall and have someone mark the height with a sticky note.
  2. Measure from the floor to the note.
  3. Multiply by six. That is your Moon jump. Is it taller than you? Taller than your door?

Want 99 more space whys?

This question comes from 100 Whys About Space, a full-color Lia & Leo Explore book for ages 4 to 9: 100 real questions, a bold one-line answer for little ones, a deeper answer for older kids, and 8 try-it-tonight experiments.

See it on AmazonFree Space Explorer printables

Sources: NASA, “Moon Fact Sheet” (surface gravity 1.62 m/s², about 0.165 of Earth’s); NASA Apollo mission archives.