How do scientists know if something is alive? There are certain characteristics of all living things that the scientific community uses to judge whether something is alive. On first observation, yeast does not look like a typical living thing. In this activity, students will hypothesize about yeast and then test to see if their hypothesis is correct. Using this information, they will be able to come to a conclusion to the question of whether yeast is alive. Kit contains enough materials for 15 groups. Teacher’s Guide and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; LS1.B; LS1.C; ETS1.B; ETS1.C Performance Expectations: 2-PS1-1; 3-LS1-1; MS-LS1-7; MS-ETS1-3 Cross Cutting Concepts: Patterns; Energy and Matter Engineering Practices: Planning and Carrying Out Investigations; Developing and Using Models; Analyzing and Interpreting Data Kit Includes: 40g Yeast 25g Sucrose 200mL Sabouraud-Dextrose Agar 20 Petri Dishes 30 Test Tubes 40 Balloons 15 Pipettes WARNING: CHOKING HAZARD Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once. DOT Info: Non-regulated *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.