Astronomy Study Guide
Presentation
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Science
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9th Grade
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Practice Problem
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Medium
Standards-aligned
Braden Sparks
Used 34+ times
FREE Resource
9 Slides • 12 Questions
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Astronomy Study Guide
Quiz yourself for the Unit 3 Exam (Oct 2nd)
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Big Bang
- 13.8 billion years ago
- Astronomers believe that the universe started as an infinitely dense point of energy ("singularity").
- not an explosion, rather it is the expansion of space itself
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Discovery
Edwin Hubble was the astronomer that discovered how all the galaxies were accelerating away from each other. Space was literally spreading out and getting bigger. “If you could wind back time, like a movie in reverse, you could calculate when the universe began”
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Multiple Choice
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Fill in the Blanks
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CMRB
The CMRB (Cosmic Microwave Radiation Background) is the leftover heat from the Big Bang
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distances
- astronomical unit (AU) - 150 million km. Which is about the distance from the Sun to the Earth
- Light Year (LY) - 9.46 trillion km. It is how far light can travel in one year.
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HR Diagram
created by Hertzsprung and Russell to plot the stars by temperature and brightness
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Multiple Choice
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When stars die
they actually help the cycle of star formation and planet formation
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study vocab too!
Astronomy Study Guide
Quiz yourself for the Unit 3 Exam (Oct 2nd)
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