Foundations of Life
Monday 9/8 - Wednesday 9/25
Monday 9/8
Learning Targets:
1) I can list some characteristics of life
2) I can explain what the goal of science is.
Warm Up:
1) How can you tell something is alive? What are the characteristics of life?
Agenda:
1) Is it Alive?
2) SQ3R Homework Introduction
Homework: Biology Section 1-1 (Should be able to finish in class)
Salt Crystals
https://www.youtube.com/watch?v=fGD4NHgp6c
Bacillus cereus
https://www.youtube.com/watch?v=y3TOZ_a
bECM
Wednesday 9/10
Learning Targets:
1) I can explain what a hypothesis is.
2) I can create and analyze a question that can be answered through a scientific experiment.
Warm Up:
1) What areas of the school or house do you think contain the most bacteria? Why?
Agenda:
1) The Ubiquity of Bacteria Lab Procedures
2) The Horrendous History of Handwashing
Homework: Handwashing Miniposter (Due 9/15)
Ubiquity of Bacteria Lab
Bacteria are everywhere (they are “ubiquitous”). When provided with the right environment, they
divide rapidly. Sometimes there are so many, they are visible as a colony. Every colony is
composed of bacteria that are genetically identical, having divided from a single original
bacterium.
In this lab, you will grow bacteria found in three different locations at the school. To prepare for
this lab, you will create a lab report. The lab report should include the following:
Heading and Title
Question: Do equal amounts of bacteria grow everywhere?
Hypothesis:
Procedure: Include the following:
- Logical steps to the experiment
Manipulated (independent) variable
- Controlled variables
- Responding (dependent) variable
- How often measurements should be taken and recorded
- Control and experimental groups
Friday 9/12
Learning Targets:
1) I can plan and conduct a scientific investigation.
Warm Up:
1) Consider what you know about the characteristics of life. What are we providing for
this bacteria that allows them to grow/reproduce?
Agenda:
1) The Ubiquity of Bacteria Lab Collection
Homework: Handwashing Miniposter (Due 9/15)
Exit Ticket
How do you write a good conclusion for a lab
report, i.e. what goes into a conclusion?
Monday 9/15
Learning Targets:
1) I can collect, analyze, and display data.
2) I can draw conclusions based on experimental evidence.
Warm Up:
For questions 1 and 2, pick the correct answer:
1)
a. The hypothesis was proved
disproved.
b. The hypothesis was supported
supported.
c. Both a and b are correct
Agenda:
1) Portfolio Introduction
2)Ubiquity of Bacteria Data and Conclusion
Homework: SQ3R 1-2 (Due 9/17)
2)
a. The hypothesis was
b. The hypothesis was not
c. Both a and b are correct
Wednesday 9/17
Learning Targets:
1) I can identify the three types of chemical bonds
2) I can explain why water is necessary for life
Warm Up:
1) Identify the manipulated variable, responding variable, and two
controlled variables in spallanzani’s Experiment
Agenda:
1) Using Chemistry in Biology
Homework: SQ3R 2-2 (Due 9/22) ← Make note of change in Unit
Calendar
Exit Question
List the ways that water helps to maintain life.
Turn in Warm-Up sheets for grading when
done.
Friday 9/19
Learning Targets:
1) I can understand and use the pH scale.
Warm Up:
1) What is the difference between ionic and covalent bonds?
Agenda:
1) Finish Using Chemistry in Biology
Homework: SQ3R 2-2 (Due 9/22)
Exit Question
Given the chemical formula of pure water, H2O,
why does it have a pH of 7 (Neutral).
Monday 9/22
Learning Targets:
1) I can understand and use the pH scale.
2) I can collect, analyze, and display data.
Warm Up:
1) Which would have more H+ (hydrogen ions): something with a pH of 4 or something with a
pH of 10?
Agenda:
1) Household pH Lab
2) Study Guide for Unit 1 Test
Homework: Study!
Wednesday 9/24
Agenda
● Return Papers
● Review study guide
● Unit 1 Test
● Ecology Pretest
Procedure Example
Procedure Example:
1. Obtain materials (petri dish and agar, 4 swabs)
2. Label the petri dish into 4 sections
3. Choose 3 areas where you will use swabs.
4. Label the petri dish with the 3 swabbed areas in 3 of the sections
5. Swab the bacteria into one of the quadrants in a squiggly line.
6. Repeat step 5 with the rest of the swabbed bacteria.
7. Leave one quadrant the control with just the regular swab.
8. Place petri dish into incubator.
9. Leave in incubator for 72 hours.
10. After 72 hours, check the petri dish.
11. If any bacteria grow, record the data by counting the colonies and drawing the petri dish and the bacteria.
Conclusion Example
My hypothesis was is there is more use then there will be more growth of
bacteria. My hypothesis was supported. The controlled group didn’t have any
bacteria and the faucet handles had 52 colonies. When the use of a location is
increased the amount of bacteria increases if not cleaned frequently. The faucet
handles get used every day and they do not get cleaned often. The fountain
handle does not get used as often due to people bringing their own water. So
this shows the more use, the more bacteria.
Unit 1 Test
When you are finished:
● Please return papers to the front of the room
● Please stay in your seat quietly until
everyone is done. They were quiet for you, so
please be quiet for them as well.
● You may quietly listen to music, but keep
your electronic devices out of sight
Exit Questions
With a partner, discuss the following
graph:
1. What does this chart measure?
2. What is the x-axis? y-axis?
3. What is the general trend (what
is happening)?
4. About what year does the
population start to increase
rapidly?
5. Do you think this trend can
continue?
6. What are your feelings about
this graph?