Science Worksheet

Solar System · Grade 4

Grade 4
Subject: Science Topic: Solar System Difficulty: Medium Questions: 6
Name:
Date:
Score:
📝 Instructions: Answer all questions using complete sentences where asked. Use what you know about our Solar System!
1
How many planets are in our Solar System? Name them in order from closest to farthest from the Sun.
List the planets in order: ___________
2
Which planet is known as the "Red Planet"? Why does it look red?
💡 Hint: It's the 4th planet from the Sun.
Answer: ___________
3
What is the largest planet in our Solar System? Describe one special feature it has.
Answer: ___________
4
Earth takes 365 days to orbit the Sun. What do we call this journey? What do we call Earth's spin on its axis in 24 hours?
💡 Hint: One is a "year" and one is a "day."
365-day journey = ___________  |  24-hour spin = ___________
5
Which planet has a famous ring system clearly visible from space?
💡 Hint: It's the 6th planet from the Sun.
Answer: ___________
6
True or False: The Sun is a planet. Explain your answer in one sentence.
Answer: ___________
Answer Key

4th Grade Science — Solar System

Q1
8 planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Q2
Mars
Looks red because of iron oxide (rust) on its surface
Q3
Jupiter
Accept: Great Red Spot (giant storm) / largest mass in Solar System besides Sun
Q4
Revolution (year) / Rotation (day)
365-day orbit = revolution; 24-hour spin = rotation
Q5
Saturn
Saturn's rings are made of ice and rock particles
Q6
False
The Sun is a star, not a planet — it is the center of our Solar System

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