Evidence of a Large Meteorite The effects of large meteorites hitting the earth's surface are examined.		Solar System Soup: Teacher's Guide The object of this activity is to observe a model of how the Solar System would have originated...
Our Growing Planet The unit had three main parts: human population growth over time; the impact of population...		Reason for the Seasons -- Student Guide In this activity students try to understand why Earth has seasons.
Concept of Flight Unit Develop process skills while learning about experimental design and the basic principles of...		Reason for the Seasons -- Teacher's Guide In this activity students try to understand why Earth has seasons.
Mission: New Earth During this interdisciplinary unit on environmental and space travel, students plan their...		Creature Feature -- Student Guide Students consider some of the characteristics of Venus and Mars which make the planets...
It's Only a Paper Moon -- Student Guide In this activity children learn how angular diameters can be used to measure the true diameter...		Angular Diameter -- Reading 1 Use this reading reference with the lesson, It's Only a Paper Moon.
It's Only a Paper Moon: Teacher's Guide In this activity children learn how angular diameters can be used to measure the true diameter...		Scouting Earth/ Moon -- Reading 5 Use this reading reference with the lessons Solar System Scale and Solar System Soup.
Solar System Scale -- Teacher's Guide The objective of this activity is to build a scale model of the planetary distances in the...		Scale Measurements Use this reading reference with the lesson Solar System Scale.
Solar System Soup -- Student Guide The object of this activity is to observe a model of how the Solar System would have originated...		Atmosphere, Oceans, Cryosphere, and Hydrologic Cycle -- Reading 9 Use this reading reference with the Creature Feature lesson.
Solar System Scale -- Student Guide The objective of this activity is to build a scale model of the planetary distances in the...		Understanding the Moon Illusion Use this reading reference with the lesson It's Only a Paper Moon.
Creature Feature -- Teacher's Guide Students consider some of the characteristics of Venus and Mars which make the planets...		Interaction of Human Activities with the Natural Environment Use this reading reference with the lesson Creature Feature.