1. Classwork PowerPoint 9/28 – 10/2/15
Mrs. Miret
8th Grade Physical Science
Clermont Middle School

2. 9/28 BELLRINGER
You will only need your interactive notebook and a piece of notebook paper today.
BELLRINGER: Write your name on a piece of notebook paper, then answer the following short answer question.
EQ: What is the difference between a scientific theory and a scientific law?

3. Activity #11 (Cornell Notes) Scientific Theory vs Scientific Law
EQ: What is the difference between a scientific theory and a scientific law?
Create a double bubble or Venn Diagram organizer that compares a Scientific Theory to a Scientific Law
See the next slide for information needed to create a double bubble or Venn Diagram.

4. Scientific Theory and Scientific Law (Answer Key)
Both Theory and Law
Scientific Law
1) Biology has more of these
1) Tested hypothesis
1) Chemistry and Physics have more of these
2) Explains how nature works
2) Supported by large amount of data
2) Describes what nature does under certain conditions (usually with a mathematical formula)
3) Helps unify a field of study
4) Can be modified if even 1 peer-reviewed experiment produces data showing disagreement
5) Widely accepted by a vast majority (if not all) scientists within a discipline

5. 9/28 Scientific Theories and Laws / A#11 NOTES EQ: What is the difference between a scientific theory and a scientific law?
The scientific method is an organized and careful method that scientists use figure things out about nature.
The experiment process never really ends
The conclusion (whether it ends in a description of how or a statement of what) can be changed when further experimentation shows changes should be made.

6. Scientific Theory and Scientific Law A#11
The field of biology has more scientific theories that result from research.
The fields of chemistry and physics have more scientific laws that result from research.
Cell Theory
Charles’s Law:
V1/T1 = V2/T2
Evolutionary Theory
Charles Law: V1/T1 = V2/T2

7. Scientific Theory and Scientific Law A#11
Scientific Law usually explains how a process works under a given set of conditions with a mathematical formula
Scientific Theory usually describes a phenomenon seen in nature.
Force is the product of an
object’s mass and acceleration
New cells form from existing cells
BOTH are proven true through continuous experimentation!

8. A#11 Is this an example of a scientific theory or a scientific law?
Mass can come from energy and energy from mass (E= mc2)
Is this a scientific theory or a scientific law?
The speed of light in a vacuum is constant and an absolute physical boundary for motion
Is this a scientific theory or a scientific law?
Scientific LAW
This is part of Einstein’s THEORY of relativity

9. Is a scientific theory or a scientific law more correct?
Charles’s Law:
V1/T1 = V2/T2
Cell Theory
That’s a trick question!
Both are equally proven to be true through continuous experimentation.
Force is the product of an
object’s mass and acceleration
Evolutionary Theory

10. A#12 EQ: Is it Repetition or Replication?
Multiple Trials
Redo entire experiment
Precision (How close are the results to each other?)
Accuracy (True value)
Meaning: To “REPEAT”
Meaning: To “REPLICATE” COPY

11. Repetition vs Replication Video Link
Note: This is a short video explaining the difference between repetition and replication. It is a reinforcement for the table that is on the previous slide. It was shown in class on 9/29

12. 9/29 5th only / DESIGN AN EXPERIMENT
Your task is to design a hypothetical experiment similar to the ones we discussed in the Simpsons Experimental Design PPT. (Level 4 DOK)
Identify –
Hypothesis
Independent Variable
Control Group
Experimental Group
Dependent Variable
Conclusion
How could this experiment be improved? i

13. 9/30 Scientific Inquiry Pre-Test
What is the difference between -
1. Qualitative data and Quantitative data
2. Repetition and Replication
3. Independent Variable and Dependent Variable
4. Control Group and Experimental Group
5. Scientific Theory and Scientific Law
6. Control and Constant
7. Hypothesis and Conclusion

14. Scientific Inquiry Pre-Test ANSWER KEY
Qualitative data and Quantitative data.
Qualitative data is expressed with words and quantitative data is expressed in numbers.
Repetition and Replication
Repetition refers to repeated trials within an experiment and Replication refers to doing the entire experiment over again.
Independent variable and Dependent Variable
The independent variable is what is being tested/manipulated by the investigator. A dependent variable is the outcome factor that we are measuring in the experiment.
Control Group and Experimental Group
The control group is the group that we are comparing our test with. The experimental group is the group that we have changed by adding an independent variable
Scientific Theory and Scientific Law
A scientific theory explains how nature works (why it happened). A scientific law describes what nature does. (usually with a mathematical formula)
Control and Constant
A control is the factor that is used to compare to in an experiment. The factor that the independent variable has not been applied to. A constant is a factor that remains the same in every part of the experiment.
Hypothesis and Conclusion
A hypothesis is a testable question based on prior knowledge, observations, and research. A conclusion is a statement that explains the results of the experiment and states if hypothesis has been supported or disproved.

15. 10/1 Peer Study Session 20 minutes
Take out your INB
You will be picking a partner and quizzing each other using your notes.
You may go anywhere in the room to study with your partner.
Off task students will be sent to their seats to study alone.
Focus on activity 9, 10, and the notes that followed them.

16. 10/2 Science Inquiry and Problem Solving Test These are your scanned test day instructions.
You will be taking your test today.
There are 50 items on the test. All items on this test are multiple choice.
All items on this test are multiple choice questions.
You will be filling in circles on an answer sheet
You will not be able to write on the test
Make sure that you write your name on your answer sheet
Add the date, your class period, and quiz form (form A or B)
When you complete the test raise your hand
Your test will be scanned and you will know how you did on your test immediately
Your test will then be collected
You may read or work on homework for another class for the remainder of the testing session.