Solar System Crossword Worksheet

Are you a fan of space and the wonders of the Solar System? If so, we have just the worksheet for you! Our Solar System Crossword is the perfect activity to test your knowledge and have some fun while learning about the various celestial entities and subjects that make up our galactic neighborhood.

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Planet closest to the Sun

Mercury is the planet closest to the Sun in our solar system, orbiting it at an average distance of about 36 million miles (58 million kilometers). With its proximity to the Sun, Mercury experiences extreme temperatures ranging from about -290°F (-179°C) at night to 800°F (430°C) during the day, making it a harsh environment for any potential visitors.

Largest planet in the Solar System

The largest planet in the Solar System is Jupiter.

The only planet known to support life

As of now, Earth is the only planet known to support life.

Most abundant gas in the Sun

The most abundant gas in the Sun is hydrogen, which makes up about 73% of its mass. Helium is the second most abundant gas in the Sun, making up about 25% of its mass. Other trace gases such as carbon, oxygen, and nitrogen make up the remaining 2% of the Sun's composition.

Small rocky objects that orbit the Sun

The small rocky objects that orbit the Sun are known as asteroids. These celestial bodies are made up of rock and metal and are remnants from the early formation of our solar system. Their sizes can vary from a few meters to several hundred kilometers in diameter, and they are found in the inner and outer regions of the solar system, with the majority located in the asteroid belt between Mars and Jupiter.

The hottest planet in the Solar System

The hottest planet in the Solar System is Venus. Its thick atmosphere traps heat from the sun, creating a runaway greenhouse effect that keeps temperatures on its surface around 900 degrees Fahrenheit (475 degrees Celsius), making it even hotter than Mercury despite being farther from the sun.

The largest moon in the Solar System

Ganymede, a moon of Jupiter, is the largest moon in the Solar System, with a diameter of about 5,268 kilometers (3,273 miles). It is even larger than the planet Mercury and is known for its icy surface and subsurface ocean that may contain more water than all of Earth's oceans combined.

The farthest planet from the Sun

The farthest planet from the Sun in our solar system is Neptune.

The largest star in the Solar System

The largest star in the Solar System is the Sun. The Sun is a G-type main-sequence star that makes up about 99.8% of the total mass of the Solar System. It is approximately 1.4 million kilometers in diameter, which is about 109 times the diameter of Earth.

Golden disk onboard Voyager spacecraft containing information about Earth

The Golden Disk on the Voyager spacecraft contains various sounds and images that represent the diversity and culture of Earth, including music, greetings in different languages, and natural sounds. This was included as a way to communicate with any extraterrestrial intelligence that may come across the spacecraft, providing a snapshot of our planet and humanity.