Designed by Eric Murphy Conrad

econrad@milforded.org

Calf Pen Meadow

www.ukonline.co.uk/m.hoult/ fw/volv.html

Introduction

Welcome to Microdetective! You will be taking on the job of a detective to to solve a microscopic mystery. You will have to use the skills you have learned about microscopes and microworlds to successfully complete your assignment.

 



Earn Your Badge

Before you can get to work, you must first pass training to earn your Science Detecvtive badge. To do this you must:

  • identify the parts of a microscope
  • complete a "properties" activity
Once you are promoted to Science Detective you can get down to business.

Case 1: Who Ate Dapnia?

  • locate suspects
  • record accurate observations in writing and as sketches
  • use your observations to solve the case

The Process

Training Step 1

It is important to understand how to use a microscope properly. Before you can do this you must know the actual parts and what they do. Below is a short quiz on the microscope and its parts. Before you continue the activity, take this quiz.

Be sure to print it out and give it to your teacher so you get credit!

Click here to take the quiz


Training Step 2

The next step to becoming a great science detective is being able to identify properties of objects. Properties are the characteristics of things. You must use your senses to identify these characteristics, but you must also be careful. Only use your sense of taste and smell when instructed to by your teacher. An example of listing properties for a pen is as follows:

White with a blue cap

Smooth

Hard

6 inches long

cylinder shape with a point at one end

No smell

 

Using what you know about properties, complete this matching properties quiz .

Click here to take the quiz


Take a few moments to observe the various specimens provided below. To view them, simply click on the underlined link in each section. To return to this page, click on the Back button.

*On a piece of paper put a title for each specimen and be sure to create a detailed sketch of what you see.

*Write 5 properties of each.

 

Volvox

http://abbe.magnet.fsu.edu/micd/pondscum/protists/volvox/avi/volvox01ob.avi_

 

Vinegar Eel

http://www.vetmed.wisc.edu/pbs/foodsafety/parasite/s_eel.mov

 

Daphnia

http://nikonmovies.magnet.fsu.edu/pondscum/crustacean/daphnia/avi/daphnia03ob.avi

 

Paramecium

http://www.auburn.edu/academic/classes/biol/1000/boyd/ParameciumCilia-B.mov

 

Amoeba

http://nikonmovies.magnet.fsu.edu/pondscum/protozoa/amoeba/avi/amoeba01pc10x.avi

 

Hydra

http://nikonmovies.magnet.fsu.edu/pondscum/coelenterata/hydra/avi/hydra04ob.avi


Evaluation

You will be graded on a few different things. First, your teacher will grade you on the Microscope quiz. Second, you will be graded on your properties quiz. Finally, you will be graded on your specimen sketches and your written description of their properties.

 

Specimen Observation Rubric

Click above to get printable rubric

 

1
2
3
Specimen Sketch
Student draws a sloppy sketch of an object. Object does not resemble the actual specimen.
Student draws a sketch that resembles the specimen but has left out details.
Student takes time sketching, including many details. Creates a thourough, accurate sketch.
List of properties
Student lists properties based on one category. (Describes only color)
Student lists various basic properties and may use words that are unclear. (The object is "big")
Student lists various properties focusing on specific important details. Student also uses specific words.

 



Conclusion

Whether you have successfully identified the correct "microcriminal" is not the main goal. By completing this lesson you have practiced some very important skills. Hopefully you have become better at using microscopes, viewing living microorganisms, and recording your written and sketched observations.

Still wondering who ate Daphnia?



Credits & References

Thanks to Nikon for the wonderful movie links of magnified specimens.


Last updated on August 15, 1999. Based on a template from The WebQuest Page