What is Dark Matter? A Mystery of the Universe

The majority of things that exist, we can't see. The matter we can see only explains five percent of the mass expected based on the behaviors of the universe. The missing mass doesn't react with light, so we call it dark matter—but what does that really mean? The video explains what it is, how we know it exists, and why we may be wrong about the entire thing.

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CCSS: Adaptable
Instructional Ideas

  • Brainstorm better names for dark matter
  • Use a KWL chart about dark matter to better understand what pupils already know or want to know
Classroom Considerations

  • Preview comments that appear to ensure they are appropriate for your class
Pros

  • Includes subtitles in English and Turkish
  • Portrays female scientists
Cons

  • None
Common Core