ELI5: Explain Like I'm 5

Orders of magnitude (mass)

Orders of magnitude is a way to measure how big or small something is. It's like using your fingers to show how many candy bars you want. Each finger represents a different amount, and you can use them to count.

When we talk about orders of magnitude for mass, we're talking about how heavy something is. We use something called scientific notation to show these numbers, because they can get really big or really small.

Let's start with something small, like an ant. An ant weighs about 0.00001 grams. This means it is five orders of magnitude smaller than a gram. In scientific notation, we write this as 1 x 10^-5 grams.

Now let's go bigger, like a car. A car weighs about 1,500 kilograms. This means it is three orders of magnitude bigger than a gram. In scientific notation, we write this as 1.5 x 10^3 kilograms.

Just like counting candy bars, we can use orders of magnitude to compare different objects. We can say that a car is three orders of magnitude heavier than an ant. Or we can say that the Earth is 24 orders of magnitude heavier than an ant!

So remember, orders of magnitude is a way to measure how big or small something is. And we use scientific notation to show these numbers.