8/15 Daily Catalyst

1. 8/15 Daily Catalyst • Good Morning! Remember you have a quiz today! • 1. A scientist is studying if mice will gain weight when given an experimental drug. He gives 60 male mice the drug and then weighs them. What would be a good control group? • 2. If an experiment challenges a theory, can that theory be revised? • 3. A group of 7 students are working on a project for Homecoming Week at their school. This project must be completed by the end of this week. With the time crunch, the group has decided to break up the project into pieces. What would be an appropriate graph to represent the material? • Tyler: Banner 8% • Whitney: Decorations 15% • Steven: Refreshments 7% • Monique: Music 10% • Sara: Faculty sign-up 24% • Sam: Donations 27% • Darrian: Speaker 9%

2. 1. A scientist is studying if mice will gain weight when given an experimental drug. He gives 60 male mice the drug and then weighs them. What would be a good control group? • A group of 60 male mice that have not been given the drug.

3. 2. If an experiment challenges a theory, can that theory be revised? • Yes, theories are able to be altered if evidence disproves the theory.

4. 3. A group of 7 students are working on a project for Homecoming Week at their school. This project must be completed by the end of this week. With the time crunch, the group has decided to break up the project into pieces. What would be an appropriate graph to represent the material? • Tyler: Banner 8% • Whitney: Decorations 15% • Steven: Refreshments 7% • Monique: Music 10% • Sara: Faculty sign-up 24% • Sam: Donations 27% • Darrian: Speaker 9%

5. 8/15 Class Business • Biology syllabus contract is due today • AP Biology Binder due ASAP • $5.00 class fee is due ASAP

6. WE LOVE EXTRA CREDIT • Parent Night is TUESDAY, THE 21ST FROM 6-7:30OM • Extra Credit for every student that attends and the class with the highest attendance will earn a reward.

7. 8/15 Agenda • Daily Catalyst-10 min • Class Business • Review for Quiz- 6 min • Quiz #1-15 min • Grade and track quiz- 12 min • Graphing worksheet- 6 min • Experimental Design Scenarios- 20 min • Present scenarios- 12 min • Homework: Article summary #1

8. Quiz Review • Can you… • Define a control group? • A theory? • Pick out a manipulated variable? • The components of a hypothesis- • Is it a good idea to change multiple variables at a time?

9. Quiz #1 • Directions: Complete the quiz independently. You may not use books, notes, or partners. Try your best and remember you are an AP student! • Time: 15 min • Noise: 0 (SILENT)

10. Free and reduced lunch form on jpsschools.org • ACT wavier= awesome!

11. Quiz #1 • Grading procedure: • When you finish the quiz, hold onto the quiz and fill out the provided survey. We will trade papers with a table mate. With the red pen write your name on the corrected by line. Each question is worth two points to equal twenty equal points. The student will earn either 2 points or 0 points. Next to each question they get right, please place a +2 next to the number. At the end, count up the points and write their total out of 20 at the top of the page.

12. Graphing Worksheet • Directions: As a group, continue working on the graphing worksheet. Work efficiently and stay on topic! • Noise: 1 (group work) • Time: 6 minutes

13. Observation • Question • Hypothesis • Experiment • Analyze • Conclusion

14. Axe Murder Hollow • Susan and Ned were driving through a wooded empty section of highway. Lightning flashed, thunder roared, the sky went dark in the torrential downpour. • “We’d better stop,” said Susan. • Ned nodded his head in agreement. He stepped on the brake, and suddenly the car started to slide on the slick pavement. They plunged off the road and slid to a halt at the bottom of an incline.

15. Pale and shaking, Ned quickly turned to check if Susan was all right. When she nodded, Ned relaxed and looked through the rain soaked windows. “I’m going to see how bad it is,” he told Susan, and when out into the storm. She saw his blurry figure in the headlight, walking around the front of the car. A moment later, he jumped in beside her, soaking wet. “The car’s not badly damaged, but we’re wheel-deep in mud,” he said. “I’m going to have to go for help.”

16. Susan swallowed nervously. There would be no quick rescue here. He told her to turn off the headlights and lock the doors until he returned. Axe Murder Hollow. Although Ned hadn’t said the name aloud, they both knew what he had been thinking when he told her to lock the car. This was the place where a man had once taken an axe and hacked his wife to death in a jealous rage over an alleged affair. Supposedly, the axe-wielding spirit of the husband continued to haunt this section of the road.

17. Outside the car, Susan heard a shriek, a loud thump, and a strange gurgling noise. But she couldn’t see anything in the darkness. Frightened, she shrank down into her seat. She sat in silence for a while, and then she noticed another sound. Bump. Bump. Bump. It was a soft sound, like something being blown by the wind.

18. Suddenly, the car was illuminated by a bright light. An official sounding voice told her to get out of the car. Ned must have found a police officer. Susan unlocked the door and stepped out of the car. As her eyes adjusted to the bright light, she saw it. The END

19. Hanging by his feet from the tree next to the car was the dead body of Ned. His bloody throat had been cut so deeply that he was nearly decapitated. The wind swung his corpse back and forth so that it thumped against the tree. Bump. Bump. Bump.

20. Susan screamed and ran toward the voice and the light. As she drew close, she realized the light was not coming from a flashlight. Standing there was the glowing figure of a man with a smile on his face and a large, solid, and definitely real axe in his hands. She backed away from the glowing figure until she bumped into the car. “Playing around when my back was turned,” the ghost whispered, stroking the sharp blade of the axe with his fingers. “You’ve been very naughty.” The last thing she saw was the glint of the axe blade in the eerie, incandescent light.

21. Why are conclusions important?

22. What makes a good conclusion? • Was your hypothesis right or wrong? • What mistakes were possibly made? • What does your data mean? • If you were to repeat this experiment, what would you change? • Why is the data you found important? • Can you draw any relationships?

23. Experimental design scenarios • As a group, design an experiment that will answer the provided question. Do not forget the 6 steps of the scientific method. Be sure to include possible data, graphs and a conclusion. You will be presenting the experiment so make a visual aid to share with the class.

24. Presenting Scenarios • During presentations, we are respectful and silent. If you have a question or comment you will raise your hand. • For the sake of time, each group will take two minutes to briefly present the key points from their scenario.

25. Homework • Do not forget to read the provided article and complete the article summary. The summary is due in the basket at the beginning of class on Monday.