Imagine describing what something looks like when you've only seen it from the inside. That's the task astronomers tackle when describing the shape and characteristics of the Milky Way. Using a combination of physics and mathematics, astronomers build what they believe to be an accurate model. Learn their methods in a video lesson from the SciShow Space series.

Concepts

the milky way galaxy, galaxies, the solar system, space exploration

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Additional Tags

science

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Instructional Ideas

• Have pupils compare models of solar systems identifying similarities and differences
• As learners view the video, have them write down two questions and two facts they want to discuss

Classroom Considerations

• Be aware of YouTube comments when making the video available for independent viewing

• This video is hosted on YouTube

Pros

• Includes images to support the concepts
• Discusses both historical and current findings and theories

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.7 RST.11-12.7