Bell work 9/14/15
1. What is the scientific method?
2. List 2 experiments you have
done using the scientific method.
*Be specific!!
Materials:
-Planner
-IAN
-Pencil/Pen
Table of Contents
Date
9/14/15
Activity
Scientific Method
Page #
??
Scientific Method Song
• http://www.youtube.com/watch?v=MV8lSmIo4Ac
The Scientific Method
Seven steps:
1.
2.
3.
4.
5.
6.
7.
Choose problem
Research problem
Develop hypothesis
Write procedures
Test hypothesis
Organize data
State conclusions
1. Choose a Problem
• What do you want to learn more about?
• Make an OBSERVATION and ask a specific
question
• Example: Do plants need water to grow?
Observation vs. Inference
What is an observation?
• When you observe, you become aware of
something using one of your senses.
– smell, taste, sight, touch, and sound.
• An observation is a statement describing a
fact.
Observation
On your OUTPUT page, record 5 observations
about this science classroom.
1.
2.
3.
4.
5.
Types of Observations
What is an inference?
• An inference is a statement based on your
interpretation of the facts.
• Inferences cannot be directly observed. They
require thought.
– Example, if you get up in the morning, look up at the sky
and observe dark clouds, observe the air is cool and
humid, and observe puddles on the ground, you might
infer that it has recently rained. **Note: you did not see
rain; you decided that it rained based on your
observations.
Examples
Observations
Inferences
• That plant is extremely
wilted.
• That plant is extremely
wilted due to a lack of
water.
• The car stopped running
because it was out of
gas.
• The Aces are leading
their division because
they are playing well
right now.
• The car stopped running
• The Aces are leading
their division
List 3 inferences about the
classroom
1.
2.
3.
Another Example
• What observations can we make about this picture?
• What can we infer based on this picture?
Let’s test your skills!
• Qualitative vs. Quantitative
• Observations TEST!
Materials:
-Planner
-IAN
-Pencil/Pen
Bell work 9/15/15
1. What are the seven
steps of the scientific
method?
1.
2.
3.
4.
5.
6.
7.
Choose problem
Research problem
Develop hypothesis
Write procedures
Test hypothesis
Organize data
State conclusions
Let’s test your skills!
• Qualitative vs. Quantitative
• Observations vs. Inference
2. Research Your Problem
• How can you find the
answer to your question?
• Research!
–
–
–
–
Library
Internet
Adults
Your own background
knowledge!
3. Develop a Hypothesis
• What do you think the answer to your
question will be?
• Hypothesis- A statement that tries to explain
a relationship between two variables
Still Developing Hypothesis…
• Use the words IF and THEN
• Example:
– IF you water a plant more, THEN it will
grow taller.
Controlling Variables
•
•
•
You need to know
exactly what you are
testing…
…You have to control
EVERYTHING
Three different types:
1. Independent variable
2. Dependent variable
3. Control variables
Independent Variable
• Independent variable– The variable that you are
changing or testing
– It will always be the IF
portion of your
hypothesis
• Example hypothesis:
– IF you water a plant
more, THEN it will grow
taller
– Water is the independent
variable
Dependent Variable
• Dependent variable– Changes in response to
the independent variable
– The variable you are
measuring
– It will always be the THEN
portion of your hypothesis
• Example hypothesis:
– IF you water a plant more,
THEN it will grow taller
– Plant height is the
dependent variable
Control Variables
• Control variables– Variables that are
unchanged throughout
the experiment
• Example hypothesis:
– IF you water a plant
more, THEN it will grow
taller
– Controlled variables:
• Soil, age of plant, type of
plant, amount of sunlight,
etc..
How
How many types of
variables are there
in an experiment?
Let’s test your skills!
• Hypothesis Worksheet
Bell work 9/16/15
Will being in the sun too
long without sunscreen
cause skin cancer?
Materials:
-Planner
-IAN
-Pencil/Pen
1. What is the IV?
2. What is the DV?
NEXT: Grab a hypothesis worksheet and glue it into IAN
on an OUTPUT side… Begin working on it 
Let’s test your skills!
• Hypothesis Worksheet
• Station Rotation (variables) !!!!
1. Chocolate may cause pimples
Independent variable:
Dependent variable:
hypothesis:
2. Salt in soil may affect plant growth.
Independent variable:
Dependent variable:
hypothesis:
3. Plant growth may be affected by the color of the light.
Independent variable:
Dependent variable:
hypothesis:
4. Bacterial growth may be affected by temperature.
Independent variable:
Dependent variable:
hypothesis:
5. Ultraviolet light may cause skin cancer.
Independent variable:
Dependent variable:
hypothesis:
6. Temperature may cause leaves to change color.
Independent variable:
Dependent variable:
hypothesis:
Bell work 9/17/15
3 spruce trees are kept in different
humidity levels inside a greenhouse for 4
weeks. 1 spruce tree is left outside in
normal conditions. The height of the trees
are measured twice a week.
1. IV- __________________________
2. DV- __________________________
3. C- __________________________
4. CG- __________________________
Materials:
-Planner
-IAN
-Pencil/Pen
Bell work 9/18/15
You decide to clean your bedroom because the
floor is covered with clothes. You try to get rid of
the clothes by throwing them into the air. You
throw clothes from 1/3 of the room into the closet
and a second 1/3 of the room straight up in the
air. The last 1/3 of the room you leave the clothes
on the floor.
1.
2.
3.
4.
IV- __________________________
DV- __________________________
C- __________________________
CG- __________________________
Materials:
-Planner
-IAN
-Pencil/Pen
4. Write Procedures
•
How will you test
your hypothesis?
1. List materials
2. List each thing that
you will do
•
•
•
Number each step
Write down
EVERYTHING you
will do
Anyone should be
able to replicate
your experiment
5. Test Your Hypothesis
• Obtain materials
• Conduct experiment
• Follow your procedure…
exactly
• Be sure to control your
variables
• Variable– Anything that can be
changed or manipulated
during an experiment
6. Organize Data
6. Organize Data
• Organize
data into the
following:
– Tables
– Charts
– Graphs
• Draw pictures
• Take photos
7. State Conclusions
• What did you see,
hear, smell, taste?
– Qualitative data
• This baby has perfect
teeth
• What does your
numerical data show
you?
– Quantitative data
• This baby has teeth
that are 8 cm long
State Conclusions
• Decide what your data tells you about your hypothesis
• Decide how your hypothesis might change based on your
results
• Evaluate your strengths and weaknesses
• Communicate your results with others!
Let’s test your skills!
• Graphing Worksheet
Bell work 9/21/15
1. Take out your “Graphing Skillz”
worksheet and finish it!
Materials:
-Planner
-IAN
-Pencil/Pen
Bring your phone to class tomorrow!!!
Let’s test your skills!
• Graphing Station Rotation
(15 minutes per station)
Bell work 9/22/15
1. Take out your “Graphing Skillz”
worksheet and finish it!
Materials:
-Planner
-IAN
-Pencil/Pen
Let’s test your skills!
• Graphing Station Rotation
(15 minutes per station)
Class Dojo
Parent Signature due tomorrow
LAB
What is our dependent variable
going to be??
• Class poll
https://www.polleverywhere.com/multiple_ch
oice_polls/d4WfBVx4S0i9xHS
Bell work 9/23/15
Materials:
-Planner
-IAN
-Pencil/Pen
LAB
Update Table of contents!
Gummy Lab!!
• Take the Metric Measurements of your specimen!
• When you are finished help the rest of your team 
Lab Report
• Title: Gummy Bear Lab
• Statement of the Problem (Research): Will
the _______ of a gummy bear change
when submerged in water for 24 hours?
Lab Write-up
• Hypothesis: (IF, THEN statement)
• IF a gummy bear is submerged in water
for 24 hours, THEN the _____ will _____.
– IV: Amount of Water
– DV: ________________
– Controls: Class brainstorming
Bell work 9/24/15
Materials:
-Planner
-IAN
-Pencil/Pen
Test 2
Lab Write-up
• Materials
– Small cup
– 50mL of water
– Graduated cylinder
– Triple beam balance
– Meter Stick
– Calculator
– GUMMY BEAR!!!!!!
Lab Write-up
• Procedure:
1.Collect the following measurements from your gummy
bear. Record your data in the data table (bear color, length,
width, thickness, volume, mass, density).
2. Put the gummy bear in a cup labeled with your name
and class period on it.
3. Add 50mL of water to the cup and let it sit for 24 hours.
4. On day 2, remove the gummy bear from the water and
use a paper towel to dry it off.
5. Repeat the measurements from Day 1 and record your
data in the data table.
6. Calculate the amount of change for each measurement
and record it in the data table.
7. Return all materials and clean-up your lab station.
LAB
Go check out your gummy
bear!!!
Bell work 9/25/15
1.Grab a Lab Write-up template
and glue it into IAN (output page
opposite your Gummy Lab
“Notes”.
2.Read through the worksheet and
start thinking about GRAPHING!
3.When you receive TT2, shade in
the # you got correct.
Materials:
-Planner
-IAN
-Pencil/Pen
LAB
https://www.youtube.com/
watch?v=astISOttCQ0
Lab Write-up
• Results: Data table and Graph
** Graph your results!
-Bar graph (length, width, thickness)
-Title
-Label your X and Y-axis
-A key
-Use a Ruler for a straight edge
Lab Write-up
• Conclusion:
Below is a helpful format for writing a conclusion
(additional sentences are encouraged!!)
This lab (experiment) investigated ___________________________.
In order to study the problem we __________________________.
My results showed _________________________________, thus
proving my hypothesis was (correct/incorrect).
I believe the results are (accurate/inaccurate) because ____________.
In order to further investigate this problem, next time I would _______.
Measurements (cm)
Gummy Bear measurements on Day 1 and 2
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
day 1
Day 2
Length
Width
Thickness
Don’t forget a cover!
Bell work 9/28/15
Use of Paper
Towels
Materials:
-Planner
-IAN
-Pencil/Pen
Paper Towel Lab (ideas)
Durability
Absorbency
Paper Towel Lab Packet
-Problem
-Hypothesis
-Materials
-Procedure
Materials:
-Planner
Bell work 9/29/15
-IAN
-Pencil/Pen
1.What is your groups’ independent -Lab Packet
variable?
1.What is your groups’ dependent
variable?
2.List the materials you need for
today’s lab.
Paper Towel Lab Packet
-Experiment
-Trail 1
Bell work 9/30/15
1.How many trials did you complete
yesterday?
1.List 2 strengths you had as a group.
1.List 2 weaknesses you had as a
group.
Materials:
-Planner
-IAN
-Pencil/Pen
-Lab Packet
Paper Towel Lab Packet
-Experiment
-Trail 2
-Trial 3
Bell work 10/1/15
1. What type of graph should you use to graph
your data?
You will use a bar graph!!
2. What variable goes on your x-axis?
The paper towel brands go on the x-axis.
3. What variable goes on the y-axis?
What you measured goes on the y-axis.
Materials:
-Planner
-IAN
-Pencil/Pen
-Lab Packet
Paper Towel Lab Packet
-Results
-Graph
-Conclusion
Bell work 10/2/15
1.Was your group’s hypothesis
correct or incorrect?
1.Which paper towel brand is
the “best buy”? Explain why.
Materials:
-Planner
-IAN
-Pencil/Pen
-Lab Packet
Paper Towel Lab Packet
-Start Final Draft
**You will have time to
finish in class on
Monday.
Bell work 10/5/15
1. As a class how was your
behavior with Ms. Frey?
Explain 
(1-5… 5=awesome!)
2. As an individual how was your
behavior with Ms. Frey?
Explain 
(1-5… 5=awesome!)
Materials:
-Planner
-IAN
-Pencil/Pen
-Lab Packet
Paper Towel Lab Packet
-Finish your Final Draft
** Study for Target Tests 3-6
-Review Day tomorrow
-Target Tests Wednesday
Bell work 10/6/15
1.Did you test durability
or absorbency?
2. Which paper towel
should I use at home??
Materials:
-Planner
-IAN
-Pencil/Pen
-Lab Packet
Bell work 10/7/15
1. Look back through your Scientific Method
notes/labs.
2. Create the chart below and list your strengths
and weaknesses with this unit.
(3 minimum!)
Materials:
-Planner
-IAN
-Pencil/Pen
Scientific Method Song
• https://www.youtube.com/watch?v=3q007
9P4i8Q