Okay, kiddo, let me explain to you about the gravity of Mars. Do you know what gravity is? It's like a force that pulls everything towards the center of the planet or the object.
Now, let's talk about Mars. Mars is a planet in our solar system just like Earth, but it's much smaller, so its gravity is much weaker. The gravitational force on Mars is only about 38% of what we have here on Earth.
What does that mean? Let's say you could jump really high here on Earth, like 1 meter. If you were on Mars, your jump would be much higher, almost 2.7 meters! You would feel much lighter on Mars because the gravity is not as strong.
But, there is a downside to weaker gravity. Even though you could jump much higher on Mars, you could also easily float or be lifted away from the surface. So, astronauts have to be very careful when moving around on Mars because they could easily float away if they are not careful.
So, that's basically what the gravity of Mars is like - weaker than Earth, but it means you can jump higher and feel lighter, but you have to be careful not to float away into space!