Project 1: The bacteria
Objectives Students will do the following:
1. Research how bacteria feed
2. Research how bacteria move, where they live, and how they reproduce
3. Learn how bacteria can be helpful or harmful
4. Create a power point what they learned about bacteria.
Materials
The class will need the following:
• Computer
• Natural Science (basic concepts)
• Libro de texto de Ciencias Naturales
• Internet access
• Photographs from Internet
Procedures
11th of January
- What do you know about bacteria?
- You compare your answer with other classmates of your group and write the conclusions in a sheet of paper ,which you will put on the class room noticeboard.
- You have to look for information about the basic characteristics of bacteria: what they look like, where they live, how they move, how they breathe, and how they reproduce. You should work individually or in pairs. Using the following Web sites you should answer the accompanying questions in their notebooks.
http://commtechlab.msu.edu/sites/dlc-me/zoo/zdmain.html
http://www.childrensuniversity.manchester.ac.uk/interactives/science/microorganisms/whatarebacteria.asp
http://www.amnh.org/nationalcenter/infection/infectionindex.html
http://whyfiles.org/shorties/count_bact.html
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/micro_organisms.shtml
http://kidshealth.org/kid/en_espanol/sano/food_poisoning_esp.html
http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/human/defendingagainstinfectionrev5.shtml
Questions
a. What are bacteria?
b. What are the three basic shapes?
c. How are bacteria classified? Name the two large classes.
d. Where have bacteria been located? Name as many places as possible.
e. How many bacteria live on Earth?
f. How do bacteria reproduce? Draw reproduction of bacteria
g. How quickly do bacteria reproduce? Try to show this pattern as a graph or other visual display.
h. What do bacteria eat? How do they take in their food?
Homework
4 you have to do a presentation (power point) about the information found
18th of January
5 On the second day, divide the group in half. Working again as individuals or in pairs, half of the class will focus on helpful bacteria, and the other half will focus on harmful bacteria. Using the same Web sites, you should answer the accompanying questions in their notebooks.
Helpful Bacteria questions:
a. Name some helpful bacteria.
b. How are bacteria helpful to humans? Give at least four examples.
c. How do bacteria help keep ecosystems healthy?
d. What do bacteria do that is especially helpful to plants?
Harmful Bacteria questions:
a. What are pathogenic bacteria?
b. Where do these harmful bacteria usually live?
c. Describe how bacteria can cause food poisoning.
d. Give two examples of bacteria that cause disease. Include their names and how the bacteria spread.
e. How can these diseases be prevented?
Homework
6 Each group has to make a presentation . Each display should include at least one micrograph, a photograph of bacteria taken under a high-powered microscope. You can include comic strips, diagrams, charts, graphs, or any other device that conveys the information in an interesting way.
25th of January
7 During the next class period, give each group a few minutes to present their displays.
8 Display the information with the students' original ideas about bacteria.
