How much is 30 grams of cereal?

It's impossible to say how much 30 grams of cereal is without knowing the density of the cereal.

Here's why:

* Density is the amount of mass per unit volume. Different cereals have different densities.

* Volume is how much space something takes up.

* 30 grams is a measure of mass, which is how much matter an object contains.

Example:

* A light and airy cereal might take up a larger volume than a denser, compacted cereal, even if they both weigh 30 grams.

To figure out how much 30 grams of cereal is, you would need to know:

* The density of the specific cereal you're interested in. This information is often found on the cereal box.

* The conversion factor between grams and the unit of volume you want to know (e.g., cups, ounces).

Let me know if you have the density of the cereal, and I can help you figure out the volume!