Welcome to Caitlins Webfolio

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Welcome to Caitlins Web-folio Learning Tutorial
Unit I- Lifes Building Blocks
Unit II-Energy Matter for Life
Unit III-Continuity of Life
Unit IV-Interactions Interdependence
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Unit I-Site Map
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Topic 1-Simple Organisms
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Key Ideas-Topic 1
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Key Idea 1- Introduction

• -All living organisms have DNA(Genetic code for
  life).
• -Every living thing depend on each other for
  survival.
• -They all perform the same basic life functions
  (nutrition, excretion, respiration, transport,
  and exc.).
• -Every living thing has its own environmental
  niche. Meaning they all have a reason to be here
  on earth.
• -

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Key Idea 2-Simple Organisms lack a cellular
organization and can either be prokaryotic or
eukaryotic.

• -very primitive cell structure and lacks cell
  organelles.
• Example- Kingdom Monerians (bacteria and
  blue-green algae)

• -Cells that have a nucleus with DNA inside and
  other cell organelles.
• -Example One celled organisms such as the
  paramecium, amoeba. (Kingdom protista).

Eukaryotic
Prokaryotic
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Lab InvestigationAntibacterial Soaps

• Do they really work?

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Antibacterial Soaps- Introduction

• Welcome to Caitlin K.s Web-Folio and Learning
  Tutorial. In this entry of my Learning Tutorial,
  you will be doing this experiment similar to the
  one I did and we can compare our results. You
  are going to experiment these soaps to figure out
  which antibacterial hand soap is more efficient.
  You may use any two soaps you like to use as your
  variables. The soaps I used were Pacific Gardens
  Antibacterial Hand Soap and Derma Care
  Antibacterial Hand Soap.

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Applying the Scientific Inquiry Process
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Problem to Investigate

• The problem to investigate is which hand soap is
  more efficient in killing bacteria. My two
  variables are Pacific Gardens Antibacterial Hand
  Soap and Derma Care Antibacterial Hand Soap.

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Background Information1-Research

• Research on Antibacterial Soaps
• -Antibacterial bacterial soap is soap that
  purposely kills all kinds of bacterial (except if
  the bacterial becomes resistant)
• -Bacteria resistance is exactly what it sounds
  like. It is when a bacteria can not be harmed be
  a certain antibiotic. Example- Once you have the
  Chicken Pox, you cant get it again because your
  body becomes immune to the bacteria.

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Background Info2-Prior Experiments

• Other experiments that we did this year in class
  that relate to this experiment are the following
• -Which hand soap is more efficient, Dial
  Antibacterial Hand Soap and Germ X Antibacterial
  Waterless hand soap.

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Hypothesis

• My hypothesis is that the Derma Care
  Antibacterial Hand soap is more efficient than
  the Pacific Gardens Antibacterial Hand Soap
  because the Derma Care Antibacterial Hand Soap
  because it is a childrens hand soap and most
  children have more bacteria on their body than
  adults.

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Experimental Design

• Materials
• Procedures
• Controls Variables
• Follow safety instructions given by teacher.

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Materials

• The materials you have to possess in order to
  complete this experiment are the following
• 3 Culture dished (or 3 clear plastic cups)
• Plant soil or dirty hands
• Chocolate Gelatin
• Chocolate Slim Fast
• Q-Tips
• Plastic Wrap
• 3 Rubber Bands

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Procedures

• 1. Make a culture dish by following the
  directions on your Jello package (You can also
  use Gelatine packages.) Substitute chocolate
  slim fast (make sure its chocolate- for juice).
• 2. Place bacteria in three different culture
  dishes. Bacteria can come from soil or your own
  hands. If you use soil- use a Q-tip to tranfer
  the soil into the culture dish.
• 3. Label one of the dishes the control.
  Place plastic wrap over it and use a rubber band
  to hold it in place. Set this aside.

• Put the two different soaps in the remaining two
  culture dishes (one soap in each culture dish).
  Label each culture dish with the soap you used.
  (ex., Dial and Micrell
• 4. Place the three culture dishes in room
  temperature.
• 5. Leave out for seven days and record your
  observations each day in the data chart.

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Controls Variables

• CONTROL
• The control is the culture dish with Chocolate
  Slim Fast and Chocolate Gelatin and the soil.

• VARIABLE(s)
• The variables in this experiment are the culture
  dishes with the Chocolate Slim Fast, the
  Chocolate Gelatin, and the two different
  antibacterial hand soaps.

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Data ObservationsTable 1 Surface Area
Population Growth
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Data ObservationsTable 2 of Species
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Data ObservationsTable 3Species Competition
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Conclusions- Graph 1 Surface Area Population
Growth

• My hypothesis was correct. Derma Care
  Antibacterial Hand Soap was more efficient at
  killing bacteria.
• Derma Care Antibacterial hand soap was more
  efficient at killing bacteria.
• Bacteria began to grow on day 2 and day 3.
• Some possible reasons why bacteria did not start
  to grow until day 2 and 3 because of the
  atmosphere, maybe not enough soap or soil.
• I think that bacteria developed a resistance to
  the bacterial agents because the soap wasnt
  strong enough. I can tell because more and more
  species grew over time.
• Natural selection is when nature decides what
  species survives out in the wild. An example of
  natural selection is in a culture dish when one
  species of bacteria survives and the other
  species dies.
• Natural selection is easily observed easily in
  bacteria because there is very rarely only one
  species of bacteria in an environment. When
  there is only one bacteria left in a culture
  dish, most likely, one species died. That is how
  natural selection is easily observed in natural
  selection
• Evolution is defined as the theory which explains
  the origin of life on planet earth the series of
  changes by which simple organisms develop into
  complex, more advanced types.

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Conclusion- Graph 2 of Species

• There were two or three species in each culture
  dish.
• Bacteria are able to reproduce so rapidly because
  they reproduce asexually (they split in half)
• Asexual reproduction produces more of a genetic
  variation.
• According to theories in modern genetics, genetic
  variation occurs in asexually reproducing
  organisms by the organisms splitting into two.

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Conclusions-Graph 3 Species Competition

• There were three different species in the control
  culture dish.
• The species that was most abundant on the first
  day that all species were observed were the black
  bacteria.
• The species that was most abundant on the last
  day that all species were observed were the black
  and orange species of bacteria.
• Yes, I do think that there was competition
  between species because there were three of each.
  These two species were species black and orange.
• I think that all populations will stop growing on
  day 10.

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Repeated Trials

• View similar experiments by exploring other
  web-folios under the student showcase link.

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Coming Soon!Related Topics on Bacteria

• 5-Customizing Bacteria -Genetic Engineering
• 6-Bacteria in Animal Nutrition Digestion
• 7-Using Bacteria for Environmental Problems

• 1-The Process of
• Evolution
• 2-Unity Diversity A System for Classification
• 3-Bacteria
• Natural Selection
• 4-Ecological Significance of Bacteria

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Topic 1- The Process of Evolution
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Evolution Defined
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Competition
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Genetic Variation
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Topic 2- Unity Diversity A System for
Classification
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Genus Species
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Kingdoms of Life
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Topic 3- Natural Selection
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NATURAL SELECTION DEFINED
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Examples of Natural Selection

• -
• -

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Key Ideas of Natural Selection

• -
• -
• -
• -
• -

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Topic 4- Ecological Significance of Bacteria
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Recycling of Materials
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Bacteria as Decomposers
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Topic 5- Genetic Engineering of Bacteria
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Genetic Engineering
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Recombinant DNA
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Examples of Using Recombinant DNA to Customize
Bacteria

• -
• -

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Topic 6-Bacterias Role in Nutrition Digestion
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The Importance of Nutrition Digestion
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Bacterias Role in Nutrition Digestion
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Topic 7-Bacteria to Solve Environmental Problems
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Bio Remediation
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Uses of Bio-Remediation
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Unit II- Energy for Life

• Coming Soon!

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Unit III- Continuity of Life

• Coming Soon!

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Unit IV- Interactions Interdependence

• Coming Soon!