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This is a lesson about designing and building an effective sunshade for a model MESSENGER craft. Learners will build a model of MESSENGER. They will use a scientific approach to solve problems and work as a cooperative team. They will discover their... (View More)

Learners will build a spectroscope and use it to observe various types of lights. This activity requires spectroscope kits, diffraction gratings and fluorescent and incandescent light sources. The kits are available for purchase in packs of 25 from... (View More)

This activity is designed to get students to observe that two objects of equal size can appear to be of different sizes when placed at a greater or lesser distance from the observer. This is intended to assist students in visualizing that the sun is... (View More)

Keywords: Visual angle
Audience: Elementary school
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