1. SCIENTIFIC METHOD
Day 2

2. Bellringer
Write a hypothesis for each of the following research problems. Identify the dependent and independent variable for each.
1. What effect does high temperature have on onion growth rates?
2. What effect does light have on plant growth
3. What effect do different mouthwashes have on bad breath?
4. What effect does light have on plant growth?

3. Scientific Method
1. Observation: Notice there is a problem or question to be answered
2. Hypothesis: Scientific Explanation
(an If...Then… statement)
3. Experiment: Test your hypothesis
4. Data: Collect information
-5. Analyze Data
6. Modify if needed or Communicate Results

4. Experiment
Control: used to compare experimental results. Does not receive any experimental treatment/changes
Variable: Factor changed during experiment
Independent Variable: What is changed. Will affect the outcome of the experiment
Dependent Variable: Results of the experiment

5. Vocabulary A hypothesis is a tentative explanation of a phenomenon;
Independent or manipulated variable – what is changed during the experiment
Dependent or responding variable – what is measured
Constant or fixed variables –parts in the experiment that are kept constant.
Experimental group – group exposed to the independent variable.
Control group – used to compare against the experimental group

6. WE DO: Analyze the Data At the different stations
Answer the questions in your notebooks
Stay at the table and wait until the timer rings to move to the next station.

7. My father is an alien

8. Independent Practice
Complete a CER for the alka-seltzer lab we did last week.

9. EXIT TICKET PUT EVERYTHING AWAY WORK QUIETLY ON THE EXIT TICKET
YOU MAY :)