1. BELL RINGER: Grab a book from the shelf and READ! Be ready to share something you learn from observed while reading. WELCOME BACK FROM THE LONG WEEKEND!

2. NOW, WHAT CAN YOU INFER BASED ON YOUR OBSERVATION?

3.  Show mastery of vocabulary, scientific method as it pertains to this class, variables, controls, graphing, and related concepts.  What’s that sound like?  Vocabulary quiz next block!  You will be required to know the terms. Spelling counts.  TEST NEXT BLOCK!!!  Hand back all work. Look for missing work.  Hand out study guide today.  Review activity: controls & variables  Complete missing work or graded work marked “Redo” or review study guide GOAL

4.  Quick Review  Control:  Independent Variable:  Dependent Variable:  Assigned/approved teams  Materials: marker board, marker, BRAIN  Each team will work together to identify the three parts of the experiment. You may not use anything aside from you and your partners’ brains to determine the answers. When you think you have all three correct, hold up your board.  Scoring: The first team with all three correct receives two points. Other teams still have the opportunity to earn one point. Points may be applied to test or negotiated on an individual or class basis. CONTROLS & VARIABLES REVIEW ACTIVITY

5.  Lisa is working on a science project. Her task is to answer the question: "Does Rogooti (which is a commercial hair product) affect the speed of hair growth". Her family is willing to volunteer for the experiment. IDENTIFY: 1. CONTROL, 2. IV, AND 3. DV.

6.  Elizabeth wanted to test if temperature affected how fast milk goes bad and curdles. She left milk in a room temperature closet, a fridge, and a oven that was turned on low heat. She then measured how rotten the milk was after 10 days. IDENTIFY: 1. CONTROL, 2. IV, AND 3. DV.

7.  A psychology teacher allowed his third period class to eat snacks while taking an exam. His fourth period class was not allowed to eat snacks while taking the same exam. He compared the test averages from both classes. Prior to this, both classes averaged comparable exam scores. IDENTIFY: 1. CONTROL, 2. IV, AND 3. DV.

8.  The leading producer of paper products wants to increase their sales of paper cups. They set up a test program in local supermarkets. Identical 8 ounce paper cups were packaged in two ways—half of the stock was packaged in the present plain boxes, while the other half of the stock was packaged in bright, cheery, pastel-colored boxes. Sales volumes for each type of package were recorded over a period of six months. IDENTIFY: 1. CONTROL, 2. IV, AND 3. DV.

9.  A researcher is studying the effect of sleep on aggression, thinking that less sleep will lead to more aggression. She has some people sleep 6 hours per night, some people sleep 3 hours per night and some people sleep as much as they want. She then monitors aggressive behavior during basketball games among participants. IDENTIFY: 1. CONTROL, 2. IV, AND 3. DV.