Scientific Process
An educated prediction (the what) supported by reasoning (the why)
hypothesis
An explanation of how a lab connects to every day life. The reason we do a lab.
Purpose
True or False:
Every lab must have 2 setups.
True
A control setup and an experimental setup
CER stands for
Identify the question in this example:
Julia wanted to test if temperature affected how fast milk goes bad. She left a glass of milk out at room temperature in the kitchen and she left another glass of milk in the refrigerator. She then observed how rotten the milk was after 10 days.
How does temperature affect how fast milk goes bad?
Using your five senses to notice the world around you and gather information
observations
A problem or question
How many changes should you make in an experimental setup and why?
True or False
The scientific process is linear-it goes step by step in order every time.
False
The scientific process may circle back to a revised hypothesis or new method once you begin your investigation.
Identify the independent variable in this example:
Julia wanted to test if temperature affected how fast milk goes bad. She left a glass of milk out at room temperature in the kitchen and she left another glass of milk in the refrigerator.
She then observed how rotten the milk was after 10 days.
temperature due to location
The observations or numbers you collect in an experiment (the results)
data
How do we test our hypothesis?
By running an investigation or experiment
The setup that DOES NOT change.
control setup
The effect you observe after you change one thing in an experiment (the data)
dependent variable
Identify the dependent variable in this example:
Julia wanted to test if temperature affected how fast milk goes bad. She left a glass of milk out at room temperature in the kitchen and she left another glass of milk in the refrigerator. She then observed how rotten the milk was after 10 days.
How rotten the milk was
the claim
Identical tests or times you run an experiment
trials
The one thing you change in the experimental setup
independent variable
The setup where you change ONE thing
Experimental Setup
What is the control setup in this example?
Julia wanted to test if temperature affected how fast milk goes bad. She left a glass of milk out at room temperature in the kitchen and she left another glass of milk in the refrigerator. She then observed how rotten the milk was after 10 days.
The milk in the refrigerator
How we communicate our findings after running an investigation.
conclusion (usually a CER)
The description or drawings of how you run an experiment.
method
Why do you have a control setup and an experimental setup?
So you can compare the outcomes with and without a change.
The patterns found in data-used to support your claim
Evidence
What is the experimental setup in this example?
Julia wanted to test if temperature affected how fast milk goes bad. She left a glass of milk out at room temperature in the kitchen and she left another glass of milk in the refrigerator. She then observed how rotten the milk was after 10 days.
The milk on the counter