bell work: 8/25/15 students want to determine which type of plant will best survive in a hot, dry...
TRANSCRIPT
Bell Work: 8/25/15
Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day.
Which of these is the independent variable for the students’ experiment?
A) amount of waterB) health of plantC) type of plantD) amount of sunlight
You must write the question, answer, and JUSTIFY!
Bell Work: 8/25/15
Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day.
Which of these is the independent variable for the students’ experiment?
A) amount of waterB) health of plantC) type of plantD) amount of sunlight
You must write the question, answer, and JUSTIFY!
Standards and Essential Questions:
SPI 0807.Inq1 (Variables and Controls)Design a simple experimental procedure with an
identified control and appropriate variables. SPI0807.Inq.3
Interpret and translate data into a table, graph, or diagram.
Essential Questions: Can I use procedures to identify controls and
variables? Can I translate data into tables, graphs, or diagrams?
THE DROPPED EGG INVESTIGATION
Check this from yesterday
SPI 0807.Inq1(Variables and Controls)
Independent Variables
In an experiment……you should only test for ONE key thing at a time
When you repeat the experiment……only change this ONE key thing
This ONE thing is called…
AN Independent VariableAlso known as the manipulated variable
Copy in notes!
SPI 0807.Inq1(Variables and Controls)
What is an independent variable?The one thing YOU change each time you duplicate an experiment
Here is our simple memory trick to help you with this.
Independent variable begins with the letter “I” So, remember the letter “I” Imagine yourself doing the experiment and ask yourself
“What ONE thing will I change when repeating the experiment?”
That one thing will be
The Independent VariableAlso known as the manipulated variable
Copy in notes!
SPI 0807.Inq1(Variables and Controls)
Let's take a moment to watch and discuss a video-song about this topic.
Link: Variable Song by Mr. Edmonds
SPI 0807.Inq1(Variables and Controls)Elbow Partner!
SPI 0807.Inq1(Variables and Controls)
The independent variable is the TYPE OF SOFT DRINK
SPI 0807.Inq1(Variables and Controls)Elbow Partner!
SPI 0807.Inq1(Variables and Controls)
The independent variable is distance from sunlamp which is connected with the amount of sunlight.
SPI 0807.Inq1(Variables and Controls)Elbow Partner!
SPI 0807.Inq1(Variables and Controls)
The independent variable is the TYPE OF SOUR CANDY.
SPI 0807.Inq1(Variables and Controls)
SPI 0807.Inq1(Variables and Controls)
The independent variable is the TYPE OF GLUE.
SPI 0807.Inq1(Variables and Controls)
SPI 0807.Inq1(Variables and Controls)
The independent variable is the COLOR OF INK.
SPI 0807.Inq1(Variables and Controls)
Dependent VariablesWhat is a dependent variable?Other factors that change because of the independent variable. These are the things that YOU DO NOT CHANGE…they change on their own while you are making observations. In other words, “anything that changes on its own” while the experimenter is observing it will be a ….
DEPENDENT VARAIABLE
Also called the “REPSONDING VARAIBLE”
Copy in notes!
SPI 0807.Inq1(Variables and Controls)
Dependent Variable?? HINT: What is a response that will happen without you doing it?
Elbow Partner!
SPI 0807.Inq1(Variables and Controls)
The dependent variable is plant growth.
SPI 0807.Inq1(Variables and Controls)Elbow Partner!
Dependent Variable?? HINT: What is a response that will happen without you doing it?
SPI 0807.Inq1(Variables and Controls)
The dependent variable is their reaction (facial expressions).
SPI 0807.Inq1(Variables and Controls)
Dependent Variable?? HINT: What is a response that will happen without you doing it?
SPI 0807.Inq1(Variables and Controls)
The dependent variable is how much force to pull the paper apart.
SPI 0807.Inq1(Variables and Controls)
Dependent Variable?? HINT: What is a response that will happen without you doing it?
SPI 0807.Inq1(Variables and Controls)
The dependent variable is how long the ink lasts.
Independent Work: Identifying Variables
Example:# Scenario Problem Independen
t Dependent Controls
1 Apple trees that receive most H2O will produce larger apples
Does amount of H20 impact size of apples
Amount of H2O
Size apples Amount of sun and soil
Exit Ticket