1. Chapter 1 Notes
What is Science

2. science comes from the latin word scire “ to know” A.Theories and Laws
I. Science
science comes from the latin word scire “ to know”
A.Theories and Laws

3. Scientific Theory and Scientific Law
(Answer Key)
Both Theory and Law
Scientific Theory
Scientific
Law
1) Tested hypothesis
2) Supported by large amount of data
1) Chemistry and Physics have more of these
1) Biology has more of these
3) Helps unify a field of study
2) Describes what nature does under certain conditions (usually with a mathematical formula)
2) Explains how nature works
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

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

5. Question: Mass can come from energy and energy from mass (E= mc2)
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
Is this a scientific theory or a scientific law?
Part of the THEORY of relativity

6. Is a scientific theory or a scientific law more correct?
Question:
Is a scientific theory or a scientific law more correct?
Trick question! Both are equally proven to be true through continuous experimentation.

7. A.Theories and Laws
*Theory- describes something observed in nature
*Law- explains how a process works (usually an equation involved)

8. B.Scientific Method
Video: #50 (times and troubles)

9. B.Scientific Method 1. State the problem 2. Gather information
* a systematic approach to solving a problem (pp13)
1. State the problem
2. Gather information
3. Form hypothesis
4. Perform experiments
5. Record and analyze data
6. State conclusion

10. Scientific Method cont.
* hypothesis- educated prediction
* Variable(I. & D.)- the one factor that is being tested
* Experimental setup- the part that contains
the I. variable
* Control setup- same as ES, but does not contain the I. variable

11. Scientific Method cont
* Data- recorded observations and measurements

12. Branches of Physical Science
pp 6
* Chemistry- study of what substances are made of and how they change and combine
* Physics- study of forms of energy and the laws of motion
- prefixes

13. II. Scientific Measurements
pp 15-19
* Metric System- standard system of science
A. Length - basic unit is meter
B. Volume - basic unit is liter/ 1ml=1cc
C. Mass- basic unit is gram

14. Scientific Measurements
D. Density- mass/volume
E. Temperature- Celsius
F. Dimensional Analyst- worksheet

15. III. Tools of Measurement
A. Length
B. Mass
C. Volume
D. Temperature