11
Lesson 11 of 84 · Space
LessonGravity in Space
What You'll Learn
Nebulae are clouds of gas and dust in space where new stars are born. When gravity causes a nebula to collapse, it heats up and nuclear fusion begins, forming a star.
Key Words
- comet
- solar system
Steps
Step 1 — Read
Read and learn: Nebulae are clouds of gas and dust in space where new stars are born. When gravity causes a nebula to collapse, it heats up and nuclear fusion begins, forming a star.
Step 2 — Do
Build your model using the materials provided.
Step 3 — Observe
Look for patterns in your observations.
Step 4 — Record
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What keeps planets in orbit around the sun?