Students observe whether the type of food fed to worms will affect the castings given off during the decomposition process. They will discuss differing findings and hypothesize reasons for these differences. Growing Plants with Worm Castings. Students test the worm castings for content and use them to grow seeds. Students hypothesize which castings will best sustain seed growth.
Students observe growing plants to test their hypotheses.
Students conduct background research on the decomposition process, soil composition, and the life cycle using the resources provided for directed Internet searches. Heart Rate Includes a detailed description of the unit. Students will gather information and interact via the Internet in collaboration with other students to search for relevant information about heart rate, culminating in a research project that will include oral presentations and written work. Classroom Heart Rates. Students will check and record heart-rates of other classmates.