1. Catalyst

2. We have some rules… N – Never more than one mic I – Insist on a safe space C – Come to class prepared H – Habitually seek evidence E – Employ academic language

3. Variables in science Scientists conduct experiments to answer questions A variable is anything that can change during an experiment Sometimes, scientists change variables on purpose, and sometimes variables change on their own

4. M ISSION : 1.Make the BEST paper airplane that you can, using the paper at your desk. 2. Write your name, house and hall on the airplane.

9. Exit Ticket 1. In your own words, define variable. 2. Imagine you conduct an experiment on how stress level affects students’ grades. What are three possible variables that you might encounter in this experiment?