Distance Affects Star Brightness
Grade 3•45 minutes•Utah State Standard 4.4.1
Learning Objective
I can describe how far away a star is affects how bright it looks to us on Earth.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Imagine two stars. One star is close to Earth, and the other is very far away. Which star will look brighter to us, and why?
2. What is parallax? Explain it in your own words, like you're explaining it to a friend.
3. If a star appears to move a lot when we look at it from different points in Earth's orbit, is it closer or farther away than a star that doesn't move much? Explain your answer.
...and 4 more questions
Educational Video
How Do We Measure the Distance to Stars?
Scientific American Space Lab