It’s Friday! We made it!Angel B & Jeffrey – Tomorrow, you’re going to take the unit test (Genetics)

Jeffrey – Turn in comp book on Monday

CalendarFri., 9/26

Topic: Lab #4Homework: None

To Do

Get outCalendarPencilGMO essay (if not in yet)Comp book

Coming upOctober Break 10/6-10/10

Inquiry Unit Test: 10/2-10/3

Add a new repetition to your pg. 49 Cornell notes (Questions, summary, circling, highlighting, etc.).

Get your airplane from the box, when the box comes around.

Independent variable’s the one you change (x2)Dependent ones you measureGet it wrong, you’ll feel displeasureIndependent variable’s the one you change

Constant variables stay the same (x2)It’s so you can compare,And the test you do is fair.Constant variables stay the same.

The Variables Song

Experiment: Bug Spray

Insect repellant (bug spray) is sprayed on one arm, and the other arm is not sprayed with any bug repellent. The

number of bug bites is recorded after 2 hours.

Independent variable? Dependent variable? Constant variables? Experimental group? Control group?

Experiment: Wheel Size

Let’s experiment to see how the size of a skateboard wheel affects the speed of the skateboard. We’ll use different size wheels and measured how fast the skateboard goes.

Independent variable? Dependent variable? Constant variables? Experimental group? Control group?

Using Measuring Tape• Feet and inches, or meters and centimeters?• How many meters?• How many centimeters?

Not Period 4

Graph• Title• Axis labels• Key (if needed)• Evenly spaced scale• Straight lines• Right kind of graph

Data Analysis

Conclusion R = The testable question was…

E = This experiment was done because…

Students wanted to know…

To do the experiment, students…

R = The hypothesis should be supported/rejects (CHOOSE ONE)

Data that leads to supporting/rejecting (CHOOSE ONE) the hypothesis includes…

U = The mistakes the lab group made were…

Some things the lab group could not control were…

Next time, the lab group could…

N = Students learned…

Students wondered…

A new idea for this experiment is…

R = Recall/Restate

E = Explain

R = Results

U = Uncertainty/Unknowns

N = New