DAY 2:
Examining Seeds
Virtual Lab
Seed
Experiment
AND
Setting up the Research
Biology Notebook
(a tutorial for you!)
Virtual Seed Lab – Day 2
Objective:
Students will:
 Know the parts of the seed;
 Understand requirements for seeds to germinate
and grow;
 Be able to explain and analyze the growth
patterns of seedlings.
 Recognize differences between plants in their
germination and growth requirements
Virtual Seed Lab – Part 2
In Part 1 you examined seeds and discovered what
seeds need to germinate and grow.
 We will use this information to examine the following
research question:
How do seedlings develop over time?




Think about how we can obtain evidence to answer
this question. (Hint: scientific evidence is obtained by
observations and measurements to prove a hypothesis
or theory)
How can we obtain observations and measurements
to help answer the research questions?
We can perform and experiment!
Virtual Seed Lab
 Remember
that the scientific method is an
ongoing process
http://undsci.berkeley.edu/article/scienceflowch
art

Virtual seed lab
Parts of an Experiment –
to be determined in every experiment
Virtual Seed lab:
 How

do seedling develop over time?
What is the IV for the Virtual Seed Lab?

time

What is the DV?
 Measurement
of root and shoot length
Research Lab Notebook
- lets get started:
 Page
1: Title Page
 Page 2 and 3: Table of Contents
 Page 4 leave blank (just in case)
 Page 5 and 10: Label with:


Page number
Title of Lab/experiment OR Research Question?

Did you remember to add the date, title and page
number to your Table of Contents?
Set up your Title Page:
(right side)
(left side)
(leave blank)
Example:
Research Biology
2016-2017
Jane/john Doe
Riverside High School,
Leesburg, VA 20176
.
1.
Does your table of contents look like this?
(right side)
(left side)
Table of Contents
(Leave blank)
Date
Title
9/9/16
Virtual Seed Lab
Page Number
.
Set up 2 page (2 and 3) for the title pages)
2.
Does your table of contents look like this?
(right side)
(left side)
Table of Contents
(Leave blank)
Date
Title
Page Number
.
Set up 2 page (2 and 3) for the title pages)
3.
Does your table of contents look like this?
(right side)
(left side)
(leave blank)
(Leave blank)
.
4.
Lets add our Model to the
(left side)
Date
(right side)
VIRTUAL LAB SEED EXPERIMENT
Research Question :
Research Model :
water
Germinating
Seeds
light
CO2
5.
Virtual Lab Seed Experiment
 In
your notebook label page 6 as Student
Understandings (see next slide):



Write down 4 observations after examining the
seeds (pictures on next slide)
Draw a germinating seed and label the parts
Write down two questions of your own about
the experiment?
Add more pages to this
experiment:
(left side)
Date
(right side)
VIRTUAL LAB SEED EXPERIMENT
STUDENT UNDERSTANDINGS:
Write 1-2 sentences about
why you think the lab is
important to our
understanding of science.
References:
Https//askabiologist.asu.edu/experiments/
vpocketseeds
:
6.
Germinating seed
(Shoot)
(root)
Lets get going with the content:
(left side)
Date
(right side)
VIRTUAL LAB SEED EXPERIMENT
EXPERIMENTAL DESIGN:
Research Question:
Hypothesis:
Null (Ho) Hypothesis
Alternative (Ha) hypothesis
we will add later
Independent Variable:
Experimental Groups
Dependent Variable:
Control:
Constant:
we will add later
7.
Virtual Lab Seed Experiment
Part 2:
 Examine
the contents of the germinated
seed packets and think about the
materials needed for this experimental
set-up
 In your notebook (see next slide), make a
section titles MATERIALS and
METHODS/PROCEDURES


MATERIALS SHOULD BE BULLETED
METHODS/PROCEDURES SHOULD BE
NUMBERED
Lets get going with the content:
(left side)
Date
(right side)
VIRTUAL LAB SEED EXPERIMENT
MATERIALS: (listed with bullets)
METHODS/PROCEDURES: (numbered steps)
.
8.
Example of the
Set up for the lab.
List of Materials from virtual
lab:









Seed packets (this experiment uses Peas, Little
Marvel)
Re-sealable plastic bags (sandwich or quart size)
Paper towels or napkins
Water.
Tape
Cardboard (optional)
Paper clips (optional)
Binder clips (optional)
Scissors
Procedures from virtual lab:
1.
2.
3.
4.
5.
Day 1, soak the seeds (this experiment uses
Peas, Little Marvel) overnight in water.
Day 2, Place a wet paper towel in a ziplock
bag and place 5-10 seeds on the paper towel
in the bag.
Blow air into the bag and seal.
On Day 1-10, observe the growth of the seeds.
Measure (in cm) the root & shoot lengths.
Virtual Lab Seed Experiment
Part 2 (all right side):


Go Back to Page 7
In your notebook under Experimental Design write
down the :



Research Question (put under title)
The control – Seeds Soaked overnight (10 hrs light and
14 hrs Dark at 23oC
IV- (what are you manipulating and/or comparing to
the control?) write down the IV that you chose:
Soaked and rotated
 Not soaked
 Soaked and no light


DV – measurement of root and shoot growth (cm) =
the responding variable
Virtual Lab Seed Experiment
 Paste
the tables that you have been given in
your lab notebook on Page 9 to record your
data
Part 3 – your experiment
 Go
to Dr. Biology’s data site
https://askabiologist.asu.edu/experiments/pockets
eed_compare
 Compare
seeds for days 1-10 for your
environmental condition and fill in the data on the
blank data sheet for Table 2 given to you by your
teacher.
 Compare the data for your environmental
condition to the control data by analyzing the
graph for shoot and root length(previously
completed in Part 2.
Now lets set up the experiment
pages?
(left side)
(right side)
VIRTUAL LAB SEED EXPERIMENT
DATE
(leave blank)
Data Tables: (be sure to include a
Title for the table)
9.
Analyzing the data:



The best way to see the results of an experiment is
to make a graph. There is a graph at the bottom
of the page that can be used to analyze the data
on the excel spreadsheet.
Copy the graphs for the Root and Shoot length for
the CONTROL and your VARIABLE in your
notebook. (you should have 4 graphs – 2 for the
control data and 2 for the selected variable)
Why did the experiment use a line graph to
analyze and visualize the data?
Now lets set up the experiment
pages?
(left side)
(right side)
VIRTUAL LAB SEED EXPERIMENT
DATE
(leave blank)
Graphs:
Be sure to include the following for your
Graph:
1. Title (The Effect of the IV on the DV)
2. Dependent variable on Y axis
3. Independent variable on X axis
4. Axis labeled
5. Scales drawn on axis
6. Key included
7. Drawn neatly (with a ruler – no free
Hand drawing of your graph)
10.
Results section – DATA
(left side)
(right side)
VIRTUAL LAB SEED EXPERIMENT
DATE
(leave blank)
Results:
Be sure to include the following for your
Results:
1.
2.
3.
4.
5.
6.
7.
Topic sentence (what is the lab about)
Identify the IV and the DV
State if the data is quantitative or qualitative
Include the means (AVG) for each group
What results were discovered?
State the null hypothesis.
Was the null hypothesis accepted or rejected?
11.
Analysis of Data
 Making
Conclusions from the Data for the Control
seeds and the experimental seeds on days 1-10:
 Look at the graph that was created on the excel
spreadsheet.
 Do you notice any trends in the data?
 Which days do the seeds start to grow a root, or a
shoot? Do roots and shoots grow at the same rate?
 Does the data help us to answer our research
questions: How do seedlings develop over time?
Results section – DATA
(left side)
(right side)
VIRTUAL LAB SEED EXPERIMENT
DATE
(leave blank)
Conclusion:
Be sure to include the following for your
Conclusion:
1. Topic sentence (what is the lab about)
2. What results were discovered?
3. State the null hypothesis.
4. Was the null hypothesis accepted or rejected?
5. What is the final conclusion – make sure
to state the conclusion and add a plausible
Explanation (this is the WHY)
6. Were there any sources of error?
7. What is the next step in this research or
Project?
11.
All Done!!!
*** be sure to go back and fill in the information on
your Table of Contents!!!