Features three sessions, perfect for grades 6-10. A Current Event. Recently revised, this GEMS guide enables students to explore this physical phenomenon by observing and charting convection liquids. Convection is also studied in terms of the movement of air and that of magma inside the earth. Teacher background section is provided.
Students explore concepts of density while layering liquids in a straw.
Five sessions, grades 6-10. Fascination with dry ice provides a strong motivational framework for students to develop inquiry skills, as well as a deeper understanding of matter, gases, chemistry and carbon dioxide itself. Students gently record worm pulse rates, experiment with the effect of temperature on movement, and graph their results. Includes excellent background information on earthworms. Three sessions, grades 6-10.