ScienceFreePrintable

Space Objects Sorting Activity

A free science worksheet ready for your classroom. Open in Kuraplan to grab the print-ready PDF, customize it for your students, or generate a fresh version in seconds.

Space Objects Sorting Activity worksheet preview

Space Objects Sorting Activity

Sun, moon and stars in space

🌟 Understanding Suns and Moons

Before you start sorting, read this helpful information:

Suns (Stars): These are huge balls of hot gas that make their own light and heat. Our Sun is actually a star! Other stars look like tiny dots because they are very far away.

Moons: These are rocky objects that travel around planets. They don't make their own light - they reflect light from the Sun. Earth has one moon, but some planets have many moons!

1. Which statement is correct about suns?

Suns are cold and dark

Suns make their own light and heat

Suns only shine at night

2. What do moons do? (Check all that apply)

Travel around planets

Make their own light

Reflect light from the Sun

Are made of rock

🚀 Sorting Space Objects

Instructions: Look at each space object below. Decide if it is a SUN or a MOON. Write each name in the correct column.

Space Objects to Sort:

• Our Sun • Earth's Moon • Io (Jupiter's moon) • Betelgeuse (red star) • Titan (Saturn's moon) • Sirius (bright star) • Europa (Jupiter's moon) • Proxima Centauri (nearest star) • Phobos (Mars' moon) • Vega (blue star)

SUNS (Stars)

MOONS

3. How many moons did you sort? ________
4. How many suns (stars) did you sort? ________

💭 Think and Explain

5. Explain why our Sun looks much bigger and brighter than other stars:
6. Why can we sometimes see the Moon during the day?
7. Draw and label one sun and one moon in the space below:

Group Discussion Questions:

• What would happen if Earth had no moon?

• Why do you think Jupiter has so many moons?

• How do you think scientists discovered moons around other planets?

About This Worksheet

Free in Kuraplan

Sign up free, grab the PDF, and customize it for your class.

Print-Ready

Formatted for standard paper. Clean layout, easy to read.

AI-Generated

Created with Kuraplan's AI, designed for real classroom use.

For Teachers & Parents

Use in classrooms, for homework, tutoring, or homeschool.

Need a custom version of this worksheet?

Kuraplan's AI generates custom worksheets in seconds — differentiated for every learner, aligned to your curriculum.

Generate Custom Worksheets — Free
No credit card Curriculum-aligned Under 60 seconds