Density is like a game where you see how many toys you can fit into a box. If you have a box full of soft, squishy stuffed animals, it might feel light, but if you fill the same box with small, heavy marbles, it will feel much heavier. This is because the marbles are packed closer together, so they have more density. It’s like how a cookie jar can have lots of air between cookies, but a jar full of marbles has very little space left over.
Think of density like a party. Imagine a room where everyone is dancing. If there are only a few people, you have lots of space to move around. But if the room is packed with people, it becomes hard to dance without bumping into someone. The room with more people is like having more density because everything is closer together.
Another way to see density is by comparing a feather and a rock. A feather is light and fluffy, with lots of space inside, so it has low density. A rock is heavy and solid, with everything packed tightly, so it has high density. It’s like how a sponge can soak up water because it has lots of space inside, but a rock can’t because it’s already full.