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This is a lesson about impact craters; the relationships between crater size, projectile size and projectile velocity; and the transfer of energy in the cratering process. Learners will create plaster of Paris or layered dry impact craters and... (View More) conduct controlled experiments using mass and velocity as the independent variables. Energy calculations for advanced classes, and vocabulary words are included. This is lesson 6 of 19 in Exploring Meteorite Mysteries. (View Less)
In this activity, learners build a sextant to measure the altitude, or height above the horizon, of an object. The activity was originally designed to accompany a previous NASA-funded educational program, entitled The Sun in Time.
In this introductory climate change investigation, students will set up at least one temperature monitoring station at the school and take daily minimum and maximum temperature readings. These local average temperatures can be compared to the global... (View More) average temperatures for the period of 1854 to 1990 found in the appendix, and compare their data with datasets used by scientists that detect global climate change. Supplies needed for this investigation include a minimum-maximum thermometer, hand-held thermometers, and data sheets. This activity is part of the Ground Truth Studies Teacher Handbook, which provides more than 20 activities to build student understanding of global change and remote sensing, and includes background chapters for teachers, glossary, and appendices. (View Less)