Unit 1 Section 1.1 notes The Nature of Science
Ch. 1
-Lab safety
*Safety handouts
*Following directions wkst.
*Read safety rules in Book
*Quiz over safety symbols
*Writing a lab
-Technology Interview
-Read sect. 1.1 pgs. 4-11 (lesson CD) Ch. 1 tech terms (quiz over terms)
Section 1.1
Objective! Describe the main branches of science and relate them to eachother.
- Describe the relationship between science and technology.
- Distinguish among facts, theories, and laws.
- Explain the roles of models and mathmatics in scientific theory and law.
How does Science happen?
- Scientists Investigate’
- Scientists plan Experiments
- Scientists observe
- Scientists always test results
- Science has many branches
Science Branch transparency
Science and Technology
Pure Science- continuing search for scientific knowledge.
Technology- application of science.
-Science and technology depend on one another.
Ex. Microscope and bacteria
Scientific Theories and Laws
-Theories and laws are supported by observations.
Scientific Theory- explanation tested by repeated observations
-in in laboratory with controlled conditions
-always questioned and examined.
Validity of a theory
- must explain observations simply and clearly
- experiments illustrating theory must be repeatable.
- Must be able to predict from the theory.
Scientific Law-states a repeated law about nature.
-Many are stated as math equations, which are quantitative statements.
A= 1 x w
-math is the same everywhere
-theories are changed or replaed when new discoveries are made
Models represent physical events
-a model is a representation of an object or event
-usually too big, small, or complex to study easily.
Section 1.1 Review
Enrichment worksheet
Section worksheet
Section CD
Transparencies
Graph Transparency
TT1,2,3
Unit 1Section 1.2 NotesThe Way Science Works
Ch.1
-Read Section 1.2 pgs. 12-191.2 CD
At the end of this section students will be able to
¤ Understand how to use critical thinking to solve problems
¤ Describe the steps of the scientific method
¤ Know tools scientists use to investigate nature
¤ Explain and identify the SI units for length, mass, and time.
¤ Identify what each common SI prefix represents, and convert measurements.
-Learn to think like a scientist
-Think logically and critically
Applying logic and reason to observations and conclusions
Using the Scientific Method
Scientific Method- series of logical steps to follow in order to solve problems.
BLM2
Testing a hypotheses
-test by doing experiments
-test one variable at a time
variable- anything that can change in an experiment
Conducting Experiements
-no experiment is a failure
-observations of real happenings
-use results to revise hypothesis
Data Sheets Quick Activity 1.2
Using Scientific Tools
-must make careful observations
- senses
- special tools
-microscope
-telescope
-spectrophotometer
-particle accelerators
Units of Measurement
International System of Units- SI le Systeme Internationale d’Unites
- used for consistency
- based on metric system
BLM3BLM4
-area, volume, pressure, weight, force, speed are base units called derived units
-work for small and large measurements
Scientific Notation
Converting Measurements
-easy to convert to smaller or larger units
-converting to smaller units, multiply to get bigger number
-converting to larger units, divide to get smaller number
Math Skills pg. 17
Practice pg. 17 1-8
Making Measurements
Length- straight line distance between any two points.
Mass- amount of matter in an object
Volume- space something takes up
Weight- force of gravity on a mass
Section 1.2 Review
Enrichment worksheet
Section worksheet
Unit 1 Section 1.3Organizing Data
Ch.1
Read 1.3 pgs. 20-26
Students will be able to:
- Interpret line graphs, bar graphs, pie graphs
- Identify significant figures in calculations
- Use scientific notation and significant figures in problem solving
- Understand the difference between precision and accuracy
Presenting Scientific DataTT1, TT2
-line graphs for continuous change
- independent, dependent variable
- x, y axis
-Bar graphs compare itels
Makes clear how large or small differences in values are
-Pie charts show parts of a whole
Writing numbers in scientific notation
Scientific notation- value written as a simple number multiplied by a power of 10
-Decimal left = positive
-Decimal right = negative
Practice pg. 23 #1-2
- multiply two values, add the powers of 10
- divide, subtract the powers of 10
Practice pg. 24 #1-2
Using Significant Figures
Precision-degree of exactness of a measurement
Significant numbers-digits in measurement that are known with certainty
Accuracy- extent to which a measurement approaches the true value
- use least precise measurement as number of significants
-round up
Practice pg.25 #1-4
Section 1.3 Review pg. 26
Enrichment worksheet
Section worksheet
Ch. Review pgs. 27-29
Skill builder Lab (making measurements)
Datasheet 1.2