Planets & Moon
This planet is known as the "Red Planet."
What is Mars?
Earth takes this long to orbit the Sun.
What is one year (365 ¼ days)?
The Sun is made mostly of this element.
What is hydrogen?
The Moon causes these daily changes in ocean water levels.
What are tides?
This dwarf planet was once called the ninth planet.
What is Pluto?
The largest planet in our Solar System.
What is Jupiter?
Earth takes this long to rotate once on its axis.
What is 24 hours (1 day)?
The Sun produces energy through this process.
What is nuclear fusion?
The Moon takes about this long to orbit Earth.
What is 27–29 days (about 1 month)?
The hottest planet in our Solar System, even hotter than Mercury.
What is Venus?
This planet has the most moons (over 90 discovered so far!).
What is Saturn?
Earth’s seasons are caused by this.
What is the tilt of Earth’s axis?
The Sun is the biggest star in the universe.
What is False? (It’s average-sized.)
The Moon’s light is actually this.
What is reflected sunlight?
This planet has the fastest winds, reaching over 1,200 mph.
What is Neptune?
This planet rotates on its side, making its seasons very unusual.
What is Uranus?
When the Northern Hemisphere is tilted toward the Sun, it is this season there.
What is summer?
Sunspots are darker because they are ___ than the areas around them.
What is cooler?
The dark, flat plains on the Moon’s surface are called this.
What are maria?
The only planet that rotates backwards compared to the others.
What is Venus?
Jupiter’s largest moon, and the biggest moon in the Solar System.
What is Ganymede?
The point in Earth’s orbit when day and night are equal everywhere.
What is an equinox?
These powerful eruptions from the Sun’s surface can disrupt satellites and power grids on Earth.
What are solar flares (or coronal mass ejections)?
A lunar eclipse happens when this object blocks the Moon.
What is Earth?
This planet has a “Great Red Spot,” a giant storm larger than Earth.
What is Jupiter?