earths orbit

• What did people historically believe about the position of Earth in the Solar System?

  They believed that Earth was at the center of the Solar System.
• What evidence did scientists gather to change the belief about the Solar System's structure?

  They gathered evidence that proved the Sun is at the center of the Solar System.
• How long does it take for Earth to orbit the Sun once?

  It takes 365 days or 1 year.
• What is the shape of Earth's orbit around the Sun?

  Earth's orbit is a slight ellipse, meaning it is oval in shape.
• In which direction does Earth orbit the Sun?

  Earth orbits the Sun in an anticlockwise direction.
• How does the tilt of Earth affect the seasons?

  • Earth's tilt causes different parts to receive varying amounts of heat and light from the Sun.
  • This variation leads to different seasons as Earth orbits the Sun throughout the year.
• What is the imaginary line around the middle of Earth called?

  The imaginary line is called the equator.
• What are the Northern and Southern Hemispheres?

  The Northern Hemisphere is above the equator, while the Southern Hemisphere is below it.
• How does the tilt of the North Pole towards the Sun affect the seasons?

  • When the North Pole tilts towards the Sun, the Northern Hemisphere receives more sunlight.
  • This results in warmer weather and the seasons of spring and summer.
  • The Southern Hemisphere receives less sunlight, leading to colder weather and autumn and winter.
• What is a satellite?

  A satellite is an object in space that orbits a larger object.
• What is the Moon's relationship to Earth?

  The Moon is a natural satellite of Earth because it orbits Earth.
• How long does it take for the Moon to orbit Earth once?

  It takes about one month for the Moon to orbit Earth once.
• How many moons of Jupiter have been discovered so far?

  So far, 70 moons of Jupiter have been discovered.
• What are the functions of human-made satellites?

  • Observe and study Earth and space.
  • Send information to scientists on Earth.
  • Predict weather.
  • Facilitate communications.
  • Provide location and directions.
• What is the Hubble Space Telescope?

  The Hubble Space Telescope is a large telescope orbiting Earth since 1990.
• How many pictures has the Hubble Space Telescope taken of objects in space?

  It has taken more than a million pictures.
• How long does it take for the Hubble Space Telescope to orbit Earth once?

  It takes 95 minutes to orbit Earth once.