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Section 1.2 "Nature of Science"
Transcript of Section 1.2 "Nature of Science"
Section 1.2 "Nature of Science"
What is Science
Developed by Mr. MacDonald 2011
If you went stargazing on a clear night, would you expect to see
the stars move? Explain your answer. (Topic 1 What is Science)
Question 2: What scientific methods might be used to track star movement?
Question 3: If someone told you that they could use the movement of the
stars to predict future events on Earth, would you consider that a
scientific approach? Explain your answer.
Knowledge gained by studying
A process of inquiry that is both
Creative and unbiased
Relies on Evidence/Theories
A theory is an explanation of a nature supported by many observations and experiments over time.
The results should always be the same
Activity: Difference between Science and Pseudoscience
Part 1: Discuss with your partner
How can you tell the difference between a science and a pseuodoscience?
Part 2: Debunking Astrology
1. at your table you will see twelve astological horoscopes read each one and pick which one fits you.
2. Think of why it fits you and be able to share with the class
relies on laws and theories
does not rely on proven observations, usually culturally based and biased
Expands Scientific Knowledge
Challenges accepted theories
Uses Metric System
Undergoes peer review
Most Scientific fields are interested in research that constantly reevaluates what is all ready known and challenges current theories.
Scientists welcome debate about one another’s ideas
Sciences advance by accommodating new information as it is discovered
Activity: Discussion Question: TRIADS
Perform the TRIAD discussion technique.
Three people need to respond
Person 1= First statement
Person 2= Agree or disagree and then why
Person 3= Summarize and confirm
“Is skepticism a neutral or a negative position in science?”
What is Science?
Observations or data that are not consistent with current scientific understanding are of interest to scientists.
These inconsistencies often lead to further investigations.
Activity: Skills Practice: Inference
What can you infer from the figure below?
Uses unbiased investigations
Claims based on large amounts of Data and observations
Uses Carefully controlled experirment
Before it is made public, science-based information is reviewed by scientists’ peers
a process where the procedures used during an experiment and the results are evaluated by other scientists who are in the same field or who are conducting similar research
Scientists can repeat the work of others as part of a new experiment, without confusion
Use it so:
Based on the Metric System with units of power of 10
Liter= liquid amount
Sectoin 1.2 Conclusion
Science is the study of nature and is rooted in observation and experimentation
Pseudoscience is not based on scientific research, does not deal with testable questions, and does not change its ideas when new discoveries are made
Science and ethics effect health, medicine, environment, and technology
Science is like an Iceberg: The most important is the base
Chapter resources (click link)
Section 1.2 Practice Quiz
Use Dimenional Analysis to convert one measurement into another
Activity: How to use SI
1. find out the conversion factor (how much is in one)set up a fraction
2. Make sure the unit you are converting is in the denominator.
3. Cross multiply crossing out similar units. Leaving you with the unit you want.
Example: Convert 2km to meters if 1000m=1km
2Km x 1000m= 2000m
an explaination of the natural world supported by many observations and experiments over time
Two well known biology theories
Theory of Evolution by Natural selection
Science= facts and evidence supported by experiments
Pseudoscience= fake science, an explaination of the world by observations alone with no scientific evidence
telling a persons character by reading pumps on head.
predicting the future reading the stars.
Phrenology: predicting the traits of someone by reading the pumps on their head. Do you think this is accurate?