Chapter 1 Notes

What is Science

I. Science

- science comes from the latin word scire “ to know”

A.Theories and Laws

*Theory- most logical explanation of events

*Law- theory that has been tested many times, and is generally accepted by scientist

B.Scientific Method* 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

Scientific Method cont.

* hypothesis- educated guess

* 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

Scientific Method cont

* Data- recorded observations and measurements

- in order to become a law, the results must be able to be reproduce many times.

Branches of Physical Sciencepp 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

II. Scientific Measurements pp 15-19

* Metric System- standard system of science

A. Length - basic unit is meterB. Volume - basic unit is liter/

1ml=1ccC. Mass- basic unit is kilogram

Scientific Measurements

D. Density- mass/volume

E. Temperature- Celsius

F. Dimensional Analyst- worksheet

III. Tools of MeasurementA. Length

B. Mass

C. Volume

D. Temperature