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 about CK-12 at: https://www.ck12.org/teacher/

Lessons 668
Views 89,981
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CK-12
Updated: 
2016
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  • Science
  • MS, HS
Different types of telescopes use different part of the electromagnetic spectrum; some telescopes orbit in space.
  • Science
  • MS, HS
Rockets put objects like satellites and space stations into space.
CK-12
Updated: 
2016
0 Comments
  • Science
  • MS, HS
Scientists use the electromagnetic spectrum to learn about objects in space.
CK-12
Updated: 
2016
0 Comments
  • Science
  • MS, HS
Students will learn how matter is made of particles, such as subatomic particles, atoms and molecules.
CK-12
Updated: 
2016
0 Comments
  • Science
  • MS, HS
Students will learn about the different types of chemical bonds, including ionic, covalent, and hydrogen.
CK-12
Updated: 
2016
0 Comments
  • MS, HS
Students will learn about minerals, which are naturally occurring, inorganic substances, with definite composition and crystal forms.
CK-12
Updated: 
2016
0 Comments
  • Science
  • MS, HS
Students will learn how to classify the different types of mineral groups according to compositions and properties.
CK-12
Updated: 
2016
0 Comments
  • MS, HS
Students will learn about the different types of rocks: metamorphic, sedimentary, and igneous.
CK-12
Updated: 
2016
0 Comments
  • MS, HS
Students will learn the factors that determine the composition of an igneous rock. (Igneous rocks form from magma and can be dense, dark mafic rocks...
  • MS, HS
Students will learn how intrusive rocks cool slowly and extrusive igneous rocks cool rapidly; this leads to different crystal sizes.