Lessons will focus on biology and alternative energy.
*Dilution experiments for both sight and taste recognition of microscopic scale. With food coloring, students will test to see how long until they no longer see hint of color. Then students will be given an unknown, edible substance that they are to mix in with water. They then will taste the substance and subsequent dilutions until they no longer can taste the substance. They will compare data and what they thought the substance was. They will analyze both the sight and taste experiments based on how close to nano they got in concentrations. In addition, the taste concepts will be connected to a taste lesson connected to proteins in the tongue.
*When studying cell parts, chloroplast discussion will lead into a lab on how algae work. Using concepts regarding what light algae can absorb based on chlorophyll a and b presence, students will examine Euglena in a microfluidic experiment. The microfluidic chip revealed in the research section will have Euglena added to it. Students will examine Euglena under microscope and see whether or not they display phototactic responses to the presence of different colored LEDs. Students will come up with their own experiments for the Euglena in groups and then share results with class. Beyond this,student groups would design their own microfluidics chip and take it to Drexel to have it made for them. Then they would use a different photosynthetic protist to test in the chip with their planned experimentation. Findings would then be shared. (Lesson attached below.)
*While discussing the basic principles of solar energy collection and usage, students will get to examine their own piece of a solar cell. They will establish what they need to know about the solar cell in order to determine its efficiency at absorbing sunlight. After discussing their answers, first in groups and then as a class, students will take digital photos of their solar cells and amass data as a class to see if histograms taken from the photos are helpful with determining solar cell absorption efficiency. Discussions of efficiency, light absorption, solar cell surface area measuring, and the future of solar cells will flavor this lesson. (Lesson attached below.)
Depending on funding, I will also supplement the microfluidics experiment with a field trip to Drexel and Penn to see microfluidics in action in research. Also, depending on the acquisition of materials discussed in the Grant Proposal section of this website, a lab on electrospinning (with future labs in this field to be more extensive).
More lessons will be given as suggested in last year's website here: https://sites.google.com/site/chsikichret2010/lesson-plan