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Lesson 3 of 84 · Space
ExperimentOur Solar System
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
- rotation
- revolution
- galaxy
Materials Needed
- ruler
- compass
- black paper
- foil
Safety First
- Tie back long hair before starting the experiment.
- Protect your work surface with newspaper or plastic.
Steps
Step 1 — Read
Read and 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.
Step 2 — Do
Build your model using the materials provided.
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?