Launch

Please find your seats and answer the following questions. If you have an issue with your seat, ask me AFTER class

I want to test whether or not the amount of time you practice skateboarding makes you better at doing tricks

1. Form a hypothesis2. What is the independent variable?3. What is the dependent variable?

Enzymes and pH

Enzyme Video

http://www.youtube.com/watch?v=V4OPO6JQLOE

Remember

Chemical Reactions change substances into new substances.

Activation Energy: the amount of energy needed to start a chemical reaction

Enzymes depend on…

TemperatureIonic ConditionspH

pH

pH is a measure of the acidity or basicity of a solution

Measured on a pH scale

A pH of…..

0-6 is considered acidic6-8 is considered neutral8-14 is considered basic

RAFT

RAFT: DUE Friday

You are an enzyme You are writing to a substrate The format is a letter Include all information in #1-6 (and correct

information)

RAFT: DUE Friday

1. Brainstorm for your letter2. Write, write, write!3. Then, make it look nice! Include a picture

of the enzyme and its substrate