Teacher Note: Because this lesson takes place in the winter, if a warm day does not happen, it is suggested to place items (except the match) in an oven for 8 minutes at 400 degrees Fahrenheit. An oven is recommended as students can record temperature. Although popcorn will pop in an oven at 400 degrees Fahrenheit, popcorn can

Teacher Note: Prepare cups with two small holes ahead of time. Holes can be made with a pin, and then widened with the tip of a pen.

Teacher Note: This lesson includes a home activity to compare different microhabitats.