what is the name of our galaxy?

Tags

NGSS.MS-ESS1-2

Which of the following is NOT a criterion for an object to be classified as a planet?

• It must have a thick atmosphere

• It must have enough gravity to be round.

• It must revolve around a star.

• It must be big enough to clear its path.

What causes day and night on Earth?

• The sun moving around Earth.

• Earth's revolution around the sun.

• Earth's rotation on its axis.

• The moon blocking the sun.

Tags

NGSS.MS-ESS1-1

Why do planets closer to the sun move faster in their orbits?

• They are made of gas.

• They have less distance to travel.

• They are smaller in size.

• They have more moons.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which planet is known as the Red Planet?

• Mercury

• Mars

• Jupiter

• Venus

Which planet is the hottest in our solar system?

• Mars

• Venus

• Earth

• Mercury

What makes Jupiter unique among the planets?

• 
  It is closest to the sun.

• It spins the fastest.

• It has the most moons.

• It is the smallest planet.

What are Saturn's rings primarily made of?

• Ice and rock debris

• Gas clouds

• Gold dust

• Metallic minerals

Which planet is the farthest from the sun?

• Neptune

• Saturn

• Pluto

• Uranus

Tags

NGSS.MS-ESS1-3

Why was Pluto reclassified as a dwarf planet?

• It is too far from the sun.

• It cannot clear its orbit.

• It is not round.

• It does not revolve around a star.