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Lesson 23 of 84 · Space
LessonOur Solar System (Part 2)
What You'll Learn
The solar system has eight planets orbiting the sun. The four inner planets (Mercury, Venus, Earth, Mars) are rocky, and the four outer planets (Jupiter, Saturn, Uranus, Neptune) are gaseous.
Key Words
- light-year
- nebula
Steps
Step 1 — Read
Read the introduction and identify the main idea of this lesson.
Step 2 — Do
Use a flashlight, a large ball, and a small ball to model eclipses. Show both a solar eclipse and a lunar eclipse.
Step 3 — Observe
Use your senses (except taste) to describe what you notice.
Step 4 — Record
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3How many planets are in our solar system?