Scientific Method Intro. Song. (Science starts with what?) AN OBSERVATION!!! And from these...
Transcript of Scientific Method Intro. Song. (Science starts with what?) AN OBSERVATION!!! And from these...
Scientific Method
Intro. Song
(Science starts with what?)AN OBSERVATION!!!
And from these observations….we form ____________ and design experiments to find
out more. QUESTIONS
• Which way does buttered toast fall?
• Do you get more wet walking or running in the rain?
• Can chatting on a cell phone while pumping gas start a fire?
• Can a penny dropped off of a skyscraper kill a pedestrian? (what about a bullet shot into the air?)
• Can a singer really break glass with his/her voice?
ACTIVITY 1:
OBSERVATION SKILLS
Clue Video Clip
Basketball Video Clip
ACTIVITY 2: Writing detailed observations….
(Brainstorm the five senses) Write one observation about this classroom for each of the 5 senses.
(what do you already know?)
I= _______________
• Gather _______________ about your topic
• Use Internet, books, interviews...but also make _____________________
______________ -using 5 senses to make an observation…only stating known facts (NO OPINIONS)
INFORMATIONinformation
objective observations
OBJECTIVE
H = _____________
• An _____________ about a ___________ relationship
HYPOTHESIS
educated guesscause/effect
• Must be testable with measurable results
“Fenders on a bicycle will keep the rider more dry when riding through puddles.”
EXAMPLE OF A HYPOTHESIS:
Sometimes stated using “IF….THEN…” statements
E = ___________________
• Test the _________________
EXPERIMENT (procedure)
HYPOTHESIS
“Fenders on a bicycle will keep the rider more dry when riding through puddles.”
2 groups in an experiment…
EXPERIMENTAL CONTROL
Change the ONE variable being tested
Used to compare results…All other variables kept the same
WHAT ARE THEY?
Practice #1:
Hypothesis- “Maple leaves change color in the fall because light exposure decreases”.
Between the experimental and control group:
1. What factors MUST stay the same? (think of 10 or more)
2. What is the ONE (and only) factor that should differ?
Practice #2:
Hypothesis- As the temperature of a “glowstick”increases, the light intensity increases.
Between the experimental and control group:
1. What factors MUST stay the same? (think of 3 or more)
2. What is the ONE (and only) factor that should differ?
R = ________________RESULTS (record data)
Time
Distance between each tick
Time Total Distance Avg. Velocity
(tick) (cm) (seconds) (cm) (cm/s)
1
2
3
1. DATA TABLES -
• DO NOT FORGET UNITS!
• Be consistent with # of decimal places
GRAPHS: 3 types
1. BAR GRAPH - displays counted data
2. PIE (CIRCLE)-displays percentages (out of 100%)
3. LINE GRAPHdisplays a relationship (connection)
between 2 variables
C = ______________
• Restate the ___________
CONCLUSION
• Does the data support or reject the _______________? (analyze the results)
• Reasons for ________
(NOT “HUMAN” ERROR!)
PURPOSE
HYPOTHESIS
ERROR
R = _______________RETEST, REPEAT
In reality, science involves trial and error and often
DOES NOT follow this rigid
format! This flow chart is a guideline.
1. SODA AND MENTOS:
What do you know (prior knowledge)?
Piece of lined paper in Lab/Activity Section:
DO NOT SAY ANYTHING!
FOLD PAPER…(listen to directions)
Mentos and Soda Video Clip
Demonstration
2. SODA AND MENTOS:
What did you observe? (Be DETAILED and OBJECTIVE)
3. SODA AND MENTOS?
Hypothesize. Why did this happen?
4. SODA AND MENTOS: What variables are tested? Explain the findings.
Mythbusters Explain it All!