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Students will "digitize" photographs of human faces using various grid sizes and shades of gray. Through this activity, they gain an understanding of image resolution and how much information is needed to answer various questions.This introductory... (View More)

This is an activity about comets. Depending on the grade level of learners, either the instructor or the learners will construct a model comet using dry ice, ammonia, dirt, corn syrup, and water. This is Actividad 5.3 as part of El Universo a Sus... (View More)

This is an activity about constellations. Learners will create a simple star finder using basic materials and learn to use it to be able to identify constellations in the night sky for various dates and times. The star finder can also be used to... (View More)

This is an activity about Moon phases. Learners will use a Styrofoam ball to simulate the Moon, which will be lit by a single light source in the classroom. Then, they will observe how different portions of the Moon ball are illuminated as they hold... (View More)

This is an activity about investigating students' preconceptions of the Moon's appearance and its phases. Learners will first draw an image of how they think the Moon looks and then discuss as a group why the drawn pictures may vary. Then, learners... (View More)

This is an activity about scale. Learners will use toilet paper squares as a standard measuring unit for a Solar System model and will determine the scaled distance between each planet using the data provided. This is Activity D-2 of Universe at... (View More)

This is an activity about astrobiology. Learners will research one planet within our Solar System and create an alien based on the temperature, gravity, terrain, radiation exposure, composition, and atmosphere of that planet. Then, each person will... (View More)

This is an activity about comet motion. Learners will cut out images of Halley's Comet, putting the images in sequential order to create a flip book demonstrating the comet's orbit around the Sun and the formation of the comet's tail near the Sun.... (View More)

This chapter provides background information to teachers about remote sensing. Topics include the electromagnetic spectrum, sensors and platforms, scale and resolution, geographic information systems, and ground truthing images. The reading is... (View More)

Students critically interpret graphical data and evaluate and discuss the difficulties inherent in interpreting and forecasting long and short term trends in this introductory climate change investigation. Graphs of data needed for this exercise are... (View More)