wunder beta🪐 Tour the Solar System
Blast off on a tour of the Sun and its eight amazing planets!
What you’ll learn
- Name the Sun and the four inner planets and describe one key feature of each.The Sun is a huge ball of gas at the center of the solar system, holding everything in place with its gravity. The four inner, rocky planets are Mercury, Venus, Earth, and Mars. Each has its own conditions, from scorching Venus to our watery home, Earth.
- Identify the four outer planets and explain what makes gas giants and ice giants different.Beyond Mars lie the giant planets. Jupiter and Saturn are gas giants made mostly of hydrogen and helium, with Saturn famous for its icy rings. Uranus and Neptune are icy blue-green worlds far from the Sun and extremely cold.
Questions this course answers
What is at the center of our solar system?
The Sun sits at the center, and its gravity keeps all eight planets circling around it.
Which planet is closest to the Sun?
Mercury is both the smallest planet and the closest one to the Sun.
Why is Venus the hottest planet?
Venus's heavy, cloudy atmosphere traps heat like a blanket, making it hotter than Mercury.
Why is Mars called the Red Planet?
Iron in the Martian soil has rusted, giving the ground its reddish color.
What is the largest planet in the solar system?
Jupiter is the biggest planet, so large that all the others could fit inside it.
What are Saturn's rings made of?
Saturn's rings are made of billions of pieces of ice and rock circling the planet.
Grounded in trusted sources
- NASA Science, "About the Planets", https://science.nasa.gov/solar-system/planets/
- Britannica Kids, "Solar System", https://kids.britannica.com/kids/article/solar-system/353789
- Britannica Kids, "Planets", https://kids.britannica.com/kids/article/planets/353638
Every Wunder lesson is built from real, reputable sources — never invented.
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