Define inner planets.
The four planets closest to the Sun: Mercury, Venus, Earth, and Mars.
True or false: Outer planets are primarily made of gas.
TRUE
The outer planets include Jupiter, Saturn, Uranus, and Neptune.
Fill in the blank: Mercury is the closest planet to _______.
the Sun
What is unique about Venus?
It has a thick atmosphere and is the hottest planet in our solar system.
Which planet is known as the Red Planet?
Mars
Define gas giants.
Large planets with thick atmospheres, primarily composed of hydrogen and helium.
True or false: Earth is the only planet known to support life.
TRUE
Fill in the blank: Jupiter has a famous storm called the Great _______.
Red Spot
What distinguishes Saturn from other planets?
Its prominent ring system made of ice and rock particles.
Which planet is known for its tilted axis?
Uranus
Define dwarf planet.
A celestial body that orbits the Sun but is not a full-fledged planet.
True or false: Neptune is the farthest planet from the Sun.
TRUE
Fill in the blank: Pluto was reclassified as a _______ planet.
dwarf
What is the main component of Mars’ atmosphere?
Carbon dioxide
Which planet has the most moons?
Jupiter
Define orbital period.
The time it takes for a planet to complete one orbit around the Sun.
True or false: Venus rotates in the opposite direction to most planets.
TRUE
Fill in the blank: Earth is the only planet with _______ water.
liquid
What is the Kuiper Belt?
A region beyond Neptune filled with icy bodies and dwarf planets.
Which planet has the highest mountain?
Mars, with Olympus Mons.
Define solar system.
A collection of planets, moons, asteroids, and comets orbiting the Sun.
True or false: Saturn is the second largest planet in our solar system.
TRUE
Fill in the blank: Uranus has a unique feature of rotating on its _______.
side
What is the main difference between inner and outer planets?
Inner planets are rocky; outer planets are gas giants.
