Normal gravity is the force by which a planet or other body draws objects toward its center. This force is what makes things fall down when we drop them. Normal gravity makes you feel like you weigh a certain amount on Earth, even though in space you would have no weight at all. It keeps everything on Earth, from people to buildings to cars, firmly planted on the ground.
To explain normal gravity in simple terms, imagine you are a little ant living on the surface of the Earth. You are so small that you don't even know you're on a planet! But you're curious, so you start to explore. You climb up to the tallest tree you can find, and you look out at the world around you. What you see is a vast expanse of trees, rivers, mountains, and fields stretching out in every direction.
Now, imagine that you jump off the tree. What happens? You fall down, of course! But why? It's because of normal gravity. The Earth is so big and heavy that it pulls you toward its center with a force that we call normal gravity. This force is what makes you feel like you weigh a certain amount, even though you are really just a tiny ant on this big planet.
Normal gravity is different in different places. For example, if you were on the moon, you would feel much lighter than you do on Earth. This is because the moon is smaller and has less mass, so it doesn't pull on things as strongly as the Earth does.
Normal gravity is an important force in our daily lives. It keeps our feet on the ground, our food on our plates, and our buildings standing upright. Without it, we would float away into space!