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In this activity, students learn that infrared light is reflected in the same manner as visible light. Students align a series of mirrors so that they can turn on a TV with a remote control when the remote is not in a direct line with the TV. As a... (View More) result of their experiment with reflection, students deduce that infrared light is another form of light and is a part of the electromagnetic spectrum. Section 1 of the activity guide includes teacher notes, information on materials and preparation, student misconceptions and a student pre-test. Each activity section also includes teacher notes, student activity sheets, and answer keys. This activity requires a TV and remote control. It is the third of four activities in Active Astronomy, which are designed to complement instruction on the electromagnetic spectrum, focusing on infrared light. (View Less)
This is a unit in 7-8 sessions about objects outside of our solar system, including galaxies and the universe. Learners will investigate the contents of the universe, why light years are used to measure distances in space, the lifespan of a star,... (View More) and detecting extrasolar planets. Finally, they will examine evidence for habitable worlds beyond earth. This is Unit 4 of the GEMS Space Science Sequence for Grades 6-8, which is available for purchase (see related link). (View Less)
This is an activity about modeling the effect of wind on a sandy surface. Learners will use trays of sand and straws to recreate surface features of images of Mars. Participants test their ideas about how some of the features on Mars might have been... (View More) produced. This is activity 4 of 9 in Mars and Earth: Science Learning Activities for After School. (View Less)
Learners will use trays of sand and cups of water to recreate surface features seen in images of Mars. This is activity 5 of 9 in Mars and Earth: Science Learning Activities for After School.