Mass comparison

Mass comparison is like comparing how heavy different objects are. Just like how some toys are heavier than others, different things in the real world have different weights too. Scientists use special tools called scales to measure how heavy objects are.

Now, let's say we want to compare the mass of two things. We put both objects on the scale and see which one weighs more. If one object is heavier, it has more mass. But, sometimes the objects are too big or too heavy to put on a scale. In that case, scientists can use other methods like measuring the amount of force it takes to move an object or the amount of space it takes up.

Overall, mass comparison is just about figuring out how heavy things are and comparing them to each other.