1. George Washington Carver
1/15/2019
Title: Biology 8/29/06
Objectives:
To continue learning about the scientific method assess learning about living things.
Class Topics
Hand in W.S. “Are Viruses Alive/The Science of Life” before the bell rings
Review Lab Safety and Equipment quiz
Chapter 1 Quiz 1
Jello Lab
“How far you go in life depends on you being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong. Because someday in life you will have been all of these.”
George Washington Carver
Tuesday, January 15, :19 AM

2. Class Assignments W.S. Are Viruses Alive/The Science of Life 8/29/06
1/15/2019
Class Assignments
What
By When
W.S. Are Viruses Alive/The Science of Life 8/29/06
Chapter 1 Quiz 1 8/29/06
Read /31/06
Deer: Predation or Starvation 8/31/06
2A only – Measurement W.S. 8/31/06
Due this class period
Due next class period
Due in the future

3. 1/15/2019
Grade Sheet

4. Postquiz Activities Hand in quiz
1/15/2019
Postquiz Activities
Hand in quiz
Place it in the tray
Pick up a W.S. “Deer: Predation or Starvation” on the lab stool
Work on the worksheet or correct homework

5. W.S. Deer: Predation or Starvation
1/15/2019
W.S. Deer: Predation or Starvation
Make the graph on the second page
Note that the number of deer are listed on the left vertical axis while the number of wolves are listed on the right vertical axis
The third question is on the last page

6. Terminology Variable - the factor that was different between groups
1/15/2019
Terminology
Variable - the factor that was different between groups
Control group - not exposed to variable
Experimental group - exposed to variable
repeatable - all experiments have to be able to be repeated
Falsifiable – it has to be able to be proven untrue

7. 1/15/2019
Scientific Method
Hypotheses are not guesses, they are possible explanations to the problem
A hypothesis that is not supported by data
Usually predicts a different observation
Scientists design experiments with a result in mind

8. Conclusion Analyze Data Collect Data Experiment Hypothesis Problem
1/15/2019
Conclusion
Analyze
Data
Collect
Data
Experiment
Hypothesis
Problem
Research

9. Problem What detergents will digest Jello?
1/15/2019
What detergents will digest Jello?
What detergents digest the most Jello?
Brainstorm: 3 minutes
Why would some detergents digest Jello?
Be specific!
Problem

10. Research What in Jello is being digested by detergents?
1/15/2019
What in Jello is being digested by detergents?
What in detergents is digesting the Jello?
Links for research
Gelatin
What are enzymes?
Enzymes and detergents
Detergents’ enzymes
Research

11. Lab Safety Review Eye safety Do NOT consume any materials Goggles
1/15/2019
Eye safety
Goggles
Protect your eyes, not your forehead
Lab Safety Review
Do NOT consume any materials
DO NOT eat the Jello or chew on the straw

12. Materials Petri Dish with Jello Drinking Straw Detergents
1/15/2019
Petri Dish with Jello
Drinking Straw
For making wells
Detergents
Independent variables
Materials
Distilled water (use pipette)
Control
Metric ruler
Be precise and be accurate

13. Hypothesis Determine a hypothesis for all of your Jello wells. Tips
1/15/2019
Determine a hypothesis for all of your Jello wells.
Tips
Remember your independent variable
What are you changing?
What is your control?
Remember your dependent variable
What are you measuring?
Is it quantitative?
How are you measuring it?
Hypothesis

14. Experiment Follow the guidelines on the laboratory handout
1/15/2019
Experiment
Follow the guidelines on the laboratory handout
Working cooperatively
Determine your role within the group
Determining factor – height