Put red algae into three jars and add enough water to cover with the eyedropper. Set one on a hot plate and heat it to 80 degrees Fahrenheit. Keep the other jars at 50 degrees and 65 degrees Fahrenheit, using refrigeration and climate control if needed. Red algae can be ordered from science suppliers.
Take pictures of the algae through the microscope after you put them into the jars and measure the diameter of each sample. Record your data. Add water to keep the algae covered.
Measure the algae each day and record the data for each sample. Take a new photograph of each sample every week.
Measure the samples for the final time at the end of the fourth week. Take a final set of pictures. Write a paragraph summarizing your findings. You should have found that the cells grew together into long chainlike structures, and that the growth cycle takes place the most quickly in the coolest temperature.