The Vast Scale of Space
Describe the scale of the universe in nested layers: Earth is one planet in our solar system, the Sun is one star among billions in the Milky Way galaxy, and the Milky Way is one galaxy among billions in the universe
Share and support
Teaching Table
Set out your lesson
“Can your child describe how our place in the universe works — that we’re on a planet in a solar system in a galaxy among billions of galaxies?”
Full guide and materials
- Activity. Describe the scale of the universe in nested layers: Earth is one planet in our solar system, the Sun is one star among billions in the Milky Way galaxy, and the Milky Way is one galaxy among billions in the universe
What to notice. State that the Milky Way is our galaxy and it contains billions of stars • Explain the hierarchy: planet → solar system → galaxy → universe • Use a comparison to convey cosmic scale (e.g. if the Sun were a football, Earth would be a peppercorn 26 metres away)
Compare teaching approaches
Teaching approaches
Gakuva’s recommended starting approach is selected. You can still compare every option.
1 approach
Can your child describe how our place in the universe works — that we’re on a planet in a solar system in a galaxy among billions of galaxies?
Describe the scale of the universe in nested layers: Earth is one planet in our solar system, the Sun is one star among billions in the Milky Way galaxy, and the Milky Way is one galaxy among billions in the universe
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Learning resources
External links for extra practice. They do not replace Gakuva’s teaching approach.
No additional resources are listed for this topic.
The teaching approach appears above.
Check understanding
- State that the Milky Way is our galaxy and it contains billions of stars
- Explain the hierarchy: planet → solar system → galaxy → universe
- Use a comparison to convey cosmic scale (e.g. if the Sun were a football, Earth would be a peppercorn 26 metres away)
“Can your child describe how our place in the universe works — that we’re on a planet in a solar system in a galaxy among billions of galaxies?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Space Exploration
- Age range
- Ages 9–11