This packet is designed to teach students about mass and weight while also teaching them about the instruments most commonly used to measure them. This unit includes 16 pages of informative text, student projects, science labs, and assessment opportunities. Students will make a balance and a spring scale from common materials. They will also test some of the most fundamental laws of science. Students will become familiar with mass and weight and how they are measured. Vocabulary is strongly enforced. Some of the activities in this unit will require digital or triple beam balances. Some activities may incur minor cost, but the lessons were designed to keep costs at a minimum.