Scientific Method
What is it called when you make an educated GUESS or prediction as to why something is happening?
Hypothesis
Does CER happen BEFORE or AFTER an experiment?
BONUS: How do you know?
BONUS: Because it uses data ALREADY collected after an experiment has been completed.
What is the name of the force that is always pulling things DOWN towards earth?
Gravity
Fill in the blank:
An object at ___________ will stay at rest unless acted upon by an opposing _______.
BONUS: Which of Newton's Laws is this?
an object at REST will stay at rest unless acted upon by an opposing FORCE.
Newton's 1st law of motion
Define a FORCE?
A push or pull that causes an object to move.
Before
Name the 3 steps of CER.
Bonus:
What is a good way to start your sentence for Reasoning? "...."
Claim
Evidence
Reasoning
BONUS: This makes sense because....
Define TENSION
BONUS: Give an example of Tension
When two forces are pulling in opposite directions.
Define Newton's 3rd Law of Motion.
BONUS: Can you remember the example we did in class with the chair?
For every action (force) there is an equal and opposite reaction (force).
If you use a crowbar to pry open a door, what type of simple machine is this?
BONUS: what is the name of the part that the bar pivots on called?
Lever
BONUS: Fulcrum
If my toaster won't make toast, what are 2 possible Hypothesis?
the outlet is broken.
the toaster is broken
the circuit breaker tripped
etc....
When making a CER Report, what is VISUAL EVIDENCE?
Drawings of the evidence for the report. (like the bag of Doritos with the post-it on it from the dog)
If _________did not exist you would slip and slide all over the floor.
IF _________ did not exist you would float up to space.
GRAVITY
When a soccer ball is rolling on a field, it will eventually speed up. This is because the grass is causing tension.
When a soccer ball is rolling on a field it will eventually SLOW DOWN, this is because the grass is causing FRICTION.
Explain what forces are at play when a parachute is deploying?
Gravity,Air resistance,
Once you have your data, name 3 types of ways you could draw/display it for people to understand?
Table/Chart/Graph/Pie Chart/Dot Chart/Bar graph etc.
Claim: The little girls LOVES red flowers.
How many of these are NOT evidence to the claim?
a) She wears clothes with multi-colored flowers
b) She has red flowers on her bedroom wall
c) Her socks are always red.
d) She colors red roses in her notebook.
a) multi-colored flowers doesn't show she LOVES RED flowers.
c) Having RED socks doesn't have anything to do with flowers, but more to do with liking the color red.
What is FRICTION?
Bonus: Please give an example when you would want to INCREASE friction and an example when you would want to DECREASE friction.
when two or more things are rubbing together.
BONUS: Car breaks (increase)
Ice skates (decrease)
What is MASS?
BONUS:
IS the mass of an object different on earth than in space? Why?
Mass: How much stuff is inside of something.
BONUS: NO - Mass never changes.
When you are opening window blinds with a chain, what simple machine is this?
BONUS :Why is it helpful for the wheel of a pully to have a groove.
Pully
BONUS: so the rope/chain will not fall off the wheel.
What are the Scientific Method Steps?
Observe
Ask A Question
Form Hypothesis
Experiment
Report
BOTH TEAMS BRAINSTORM:
Make up a CER in your group that we DID NOT do in class and share when ready. You have 2 minutes.
varied
What are the FOUR forces of flight?
BONUS: Which forces are evident during LANDING a plane?
Lift
Weight/Gravity
Drag
Thrust
BONUS: Drag/Gravity
IF you push a heavy box it will move slowly. If you push an empty box the same size it will move quickly? Why? Which of Newton's Laws is this?
If you push things with different mass with the same force, you will get different accelerations. Newton's 2nd law of motion.