VISCOSITY and FALL SPEED
Mary Clark
This set of short lessons is intended to use viscosity as a concept to set up understanding of the convective motion of various fluids. The lessons will more broadly deal with important science inquiry skills such as forming and revising meaningful ideas, making inferences, gathering data, and sharing information with others. Key words: viscosity middle school convection inquiry experiment hypothesis data conclusion variables distance speed time

Reaching for a Star... (and finding its diameter!)
Jan Davagian
The use of metric units and measuring skills are reviewed. Extreme distances are measured using a pinhole camera to set up ratios of similar triangles.

Investigating Meteorites: Bridging Earth Science to Space Science
Katye Couch
This activity is designed to have students apply previous knowledge about Earth Science to investigate iron-nickel meteorites. Students should have previous knowledge of crystal size/cooling rate correlation in Earth rocks and previous knowledge of Earth's composition. Students will investigate meteorites (real or photographed with scale) using a series of guided questions. They will practice using observation and inference skills as well as data collection skills. Key words- activity, measurement, guided inquiry, astronomy, meteorites, hands-on, investigative, lab, crystal size, cooling rate, differentiation, planetary composition, planetary formation, observation, inference, correlation, space, geology, earth science, solar system, solar system formation