Journey Through the Universe
Our Solar System
Take your class on a journey through our solar system. Learners explore each planet, from Mercury to Pluto, and discuss various features that differentiate one from another. They complete activities related to the topics and discuss the...
Curated OER
The Sun and Its Planets-Practice Test
In this sun and planets worksheet, 3rd graders answer 14 multiple choice questions about the solar system, the size of planets in comparison to the sun, asteroids, the components of the sun and features of planets.
Messenger Education
Dangers of Radiation Exposure
Gamma radiation, which is harmful, is useful in treating cancers. In the second lesson in a series of four, young scientists take surveys and calculate their yearly exposure to ionizing radiation. Then they read about how harmful their...