Measure & Solve with Mass and Liquid Volume

How the lesson starts: Measure & Solve with Mass and Liquid Volume

Giant Gus's soup
Hello! Meet Gus, a gentle giant who loves to cook. Today he's making his famous pumpkin soup! He must weigh his food and measure his water. First, he needs the right units!
Pick the right unit
Mass tells how heavy something is. A paper clip is about 1 gram, so light things use grams. A pumpkin or an anchor is heavy, so use kilograms. Water is a liquid. Measure liquids in liters!
The water barrel
Which unit makes sense for a full water barrel: grams or liters? Ask: is it a liquid? Yes, it's full of water. Liquids use liters. So liters! Watch out: grams are for tiny, light things, like a feather.