Planner Aug 28T: Control and Experimental Groups

D: identify the control and experimental groups from the IV of an experiment

Table of Contents 8/12 Claims and Evidence 2-38/13 Lab Safety 4-58/14 Questions 6-78/15 What is Science 8-98/16 Paper Tower 10-118/19 Discussions 12-138/20 Variable Vocab 14-158/21 Hypothesis ? 16-178/22 Data Tables 18-198/26 Procedures 20-218/27 Groups 22-238/28 Experimental Design 24-25

Get Out…• Agenda, folder, and

notebook

DO NOW page 24- Explain how you would identify the control group and experimental group for the following problem: What is the effect of time spent playing on a gaming system on grades?

Scenario Solving Steps

1. Read the en t i r e scenario

During Reading

2. Highlight the question or problem

3. Draw a squiggle around the hypothesis

4. Box the cause and draw an arrow to, and underline the effect

5. Place a check above the constants 6. Box the independent variable and box how it

is tested 7. Underline the dependent variable and how it

is measured After Reading

8. Analyze the data 9. Was the hypothesis accepted or rejected 10. Revise the hypothesis for a future investigation.

Experiment Outline

Independent Variable (IV): Type of hairspray Control Group (CG): Lovely Locks

Experimental Group (EG): Concrete Curls

Dependent Variable (DV): The amount of time the cotton balls hold together

Constants (CV):

held the cotton balls together f or 10 seconds

Cotton balls

Sprayed 15 cm f rom cotton ball

Problem: Does the type of hairspray affect the amount of time the cotton balls hold together?

Hypothesis: Concrete Curls will hold the cotton balls together longer.

ProblemHypothesis

Bunny Buster vs. Carrot Top Batteries

Experiment Outline

Independent Variable (IV): Type of batteries Control Group (CG): Bunny Busters

Experimental Group (EG): Carrot tops

Dependent Variable (DV): How long the batteries last

Constants (CV):

two double A, 1.5 volt, alkaline batteries

Expiration date March 2015

Same headset

Problem: Does the type of batteries affect how long the batteries last?ProblemHypothesis: If carrot top batteries are used, then they will last longer.Hypothesis

Exit TicketExplain what helped

you find the question and hypothesis in today’s scenarios.

Experiment Outline

Independent Variable (IV): Type of chocolate Control Group (CG): Hersey Kisses

Experimental Group (EG): M&Ms

Dependent Variable (DV): Number of chocolate tracks on tests

Constants (CV):

Same number of tests

Same temperature

Same amount of chocolate eaten between tests

Hershey Chocolate Almond Kisses VS. M&M Peanuts HomeworkProblem: What is the effect of the type of

chocolate on the number of tracks left on tests?

Hypothesis: If M&M Peanuts are eaten, then there will be less chocolate tracks on the tests.Hypothesis

Problem