Space Science · Stars and the Sun
Why Does the Sun Look So Bright?
Use a controlled model and relative-distance evidence to explain apparent brightness.
Lesson plan
Why Does the Sun Look So Bright?
A step-by-step guide to help you teach this lesson.
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Lesson overview
What students will learn
- Plan a fair model that changes distance while holding the source and observer method constant.
- Use observations at three distances to describe an apparent-brightness pattern.
Key science ideas
- The Sun is a star.
- The Sun is far closer to Earth than other stars.
- With the same light source, increasing distance makes the light appear dimmer.
Lesson at a glance
- Grade 5
- 55 min
- ~8 min prep
- 5-ESS1-1
- 3 materials
What’s included
- Lesson Plan
- Investigation
- Teacher Slides
- Printable Worksheet
- Teacher Answer Key
- Interactive Activity
- Vocabulary