Science Brief Description 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.
Objectives Students will test the castings from the worm bins for content to help them make connections between the types of food and nutrient output. Students will hypothesize about the food worms are fed and the effect of the type of food on the makeup of the castings. Students will develop skills in graphically representing data by graphing and comparing the makeup of the castings. Students will develop skills in hypothesis testing by predicting which castings will best sustain seed growth. Materials and Resources Needed Flower seeds 5 plant pots Plant food and water Potting soil, enough to fill 5 pots Soil testing kit or results from 4-H extension office about makeup of worm castings from Lesson 1 Worm castings from Lesson 1 Computer with modem and email software for each collaborative group ClarisWorks or other integrative software package that has graphing and word processing capabilities.