Astronomy

• The study of celestial objects and phenomena in space.

  Astronomy
• A satellite is anything that orbits a planet. It can be natural or artificial.
• The Big Bang Theory proposes that the universe originated from a high-density, high-temperature state.
• A supernova occurs at the end of a star’s life cycle
• The Nebular Theory suggests the solar system formed from a rotating cloud of dust and gas called the solar nebula around 4.6 billion years ago
• How many planets are in our Solar System?

  8
• What are the inner planets of our Solar System?

  Mercury, Venus, Earth, Mars
• What are the characteristics of the Sun?

  • Yellow dwarf star.
  • Located at the center of the solar system.
  • Composed mainly of hydrogen and helium.
  • Approximately 4.6 billion years old.
• Describe Mercury

  • Closest and smallest planet from the Sun.
  • Heavily cratered surface.
  • No moons.
• Describe Venus.

  • Second planet from the Sun, hottest.
  • Dense atmosphere primarily of CO2.
  • Spins in retrograde motion.
  • No moons.
• Describe Mars.

  • Fourth planet from the Sun.
  • Known as the red planet due to iron oxide on its surface.
  • Closest to being Earth-like.
  • Has two moons.
• What are the jovian planets? Jupiter, Saturn, Uranus, Neptune.
• Describe Jupiter.

  • Fifth planet from the Sun, largest in the solar system.
  • Features the Great Red Spot, a massive storm.
  • More than 90 moons.
  • Has a ring system.
• Describe Saturn.

  • Sixth planet from the Sun, second-largest.
  • Known for its outstanding ring system.
  • Has the most moons
• Describe Uranus.

  • Seventh planet from the Sun.
  • Sideways orientation.
  • Made mostly of ice and gas.
  • Ring system and over 27 moons
• Describe Neptune

  • Eighth planet from the Sun.
  • Windiest planet.
  • Known as the Ice Giant
• What lies between Mars and Jupiter?

  Asteroid Belt
• What lies beyond Neptune?

  Kuiper belt
• What are the criteria for a celestial body to be classified as a planet?

  • Orbits the Sun.
  • Has sufficient mass for hydrostatic equilibrium.
  • Has cleared its orbit of other debris.
• What are asteroids mostly made of?

  Rock and metal
• What are comets mostly made of?

  Ice and dust
• What holds galaxies together?

  Gravity
• This planet is known as the red planet

  Mars
• This is the largest planet in the solar system

  Jupiter
• This planet consists of the largest volcano in the solar system called Olympus Mons

  Mars
• This is the hottest planet

  Venus
• This is the smallest planet

  Mercury
• This planet is known for its sideways orientation

  Uranus
• This planet spins in retrograde motion

  Venus
• This planet is known for its rings

  Saturn
• What's the largest object in the asteroid belt

  Ceres
• Our Solar System is part of the Milky Way Galaxy
• This is the fifth planet from the sun

  Jupiter
• This is the third planet from the sun

  Earth
• This is the second planet from the Sun

  Venus
• This is the fourth planet from the Sun

  Mars
• This is the sixth planet from the Sun

  Saturn
• This is the eighth planet from the Sun

  Neptune
• This is the seventh planet from the Sun

  Uranus