CK-12

CK-12 provides open-source high quality K-12 learning platform to help teachers provide learning opportunities for students globally. Free access to 5000+ high-quality, customizable educational concepts in multiple modalities (text, videos, quizzes, images etc.) suited to different learning levels will allow teachers, students and others to innovate and experiment with new models of learning. Learn more at: www.ck12.org/teacher

Lessons 668
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CK-12
Updated: 
2016
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  • Science
  • Middle School
Students will learn about the history of astronomy from the ancient Greeks through the Big Bang.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students examine the eight planets of our solar system and their orbits and rotation.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students will explore the size and shape of planet orbits. They will learn how astronomers use astronomical units to measure distance in our solar...
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students will learn about the characteristics of Mercury, the closest planet to the Sun.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students will learn about Venus, which has active volcanoes and a runaway greenhouse effect.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students learn about Mars, the planet we know best. Recent studies have revealed that Mars has interesting surface features, including evidence for...
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Student learn about the features of the planet Jupiter, including the Great Red Spot (a storm that's been active for more than 300 years) and its...
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students will learn about Saturn's features, including its beautiful rings and its moon Titan, which may have liquid water.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students will explore the features of Uranus, a tilted, ringed, blue outer planet.
CK-12
Updated: 
2016
0 Comments
  • Science
  • Middle School
Students learn about Neptune, the farthest planet from the sun, which has a reverse orbit and a blue color.