The Biology Corner
The Methods of Science
Branches of Science
1. _______________ (biology, microbiology, botany, evolution) - deals with living things
2. ______________ (geology, meteorology) - earth, space, rocks, volcanoes, weather
3. _______________ (chemistry, physics) - matter, energy, gravity, light, sound
What is Science?
1. studies the _________________________________
2. discovers _______________________________
3. discovers nature's "___________" about how things work
4. only deals with natural phenomena and natural causes *excludes _______________________________
Scientific Method
A step by step process where a scientist investigates a question by observing and performing experiments.
Step 1 - _____________________________________
Step 2 - _____________________________________
(has someone already investigated this?)
Step 3 - _____________________________________
-- a possible explanation or answer
Step 4 - ______________________________________
Experiments have 2 variables
___________________________ - what you change
____________________________ (dependent) - what you measure
If you want to test the affect of fertilizer, you would add fertilizer to a plant (independent variable) and measure how the plant grows (responding variable)
A ____________________ is something you do nothing to, used to compare your results
you will also have a plant that receives no fertilizer
Step 5 - ______________________________
Organize data into charts or graphs that can be read by others
Step 6 - _____________________________
Determine if hypothesis is supported or rejected
If hypothesis is not supported - ___________________________
If hypothesis is supported - __________________________
Scientific Method in Action
1. What is the best material for insulation? Question.
2. Investigate materials (wool, down, leather)
3. Form a _____________________________
4. Design and conduct ______________________.
5. Analyze ________________________
5. Draw __________________________
Modeling
Scientists sometimes use models to help ______________phenomenon. The globe is a
_________________________ you are familiar with.
What are some other models?
~ Take 5 - Pick A Question and Design an Experiment
1. Will human urine repel sharks?
2. Does the color red make lizards more aggressive?
3. Will fish grow larger if placed in a larger tank?
4. Does exercise reduce your risk of heart attack?
5. Does aspirin keep cut flowers fresh longer?
-----------------------
A _____________________ is an explanation of WHY something happens.
It comes from many ________________________ and _____________________________
Examples: _______________________
Theory of Evolution
A ______________________ tells you WHAT happens, like a rule
Examples: Law of Gravity
Law of _____________________
TECHNOLOGY IS ___________________________
_________________________________________
We often think of technology as things like computers, but technology also includes things like _________ or steel
What are some other technologies?
Draw or Explain Your Design
Quiz Time: Methods of Science
You may use your notes!
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