In this project, the teacher will give each group of students a shallow plastic tub that contains a small house constructed from Lego© and other plastic containers that are fixed to the box. The Lego© house should be constructed so students can easily measure its dimensions. The plastic containers represent the sections of a grass lawn that need to be watered, and the plastic containers will also hold the water that is dispensed from the irrigation system that students build. The plastic containers must be carefully chosen because students need to measure the dimensions and calculate the volume of the containers. Figure I shows a possible configuration of the house and the plastic containers