Podcast
Questions and Answers
What is typically produced when a meteor enters the Earth's atmosphere?
What is typically produced when a meteor enters the Earth's atmosphere?
What is the term for a rock that survives to reach the ground?
What is the term for a rock that survives to reach the ground?
Why do meteor showers often occur?
Why do meteor showers often occur?
What is the purpose of the global positioning system (GPS)?
What is the purpose of the global positioning system (GPS)?
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What is the largest and brightest man-made object orbiting the Earth?
What is the largest and brightest man-made object orbiting the Earth?
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What do stars appear to do when you look at them in the night sky?
What do stars appear to do when you look at them in the night sky?
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What is the primary difference between a star and a planet?
What is the primary difference between a star and a planet?
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What is an exoplanet?
What is an exoplanet?
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What is the primary way we are able to see objects in the night sky?
What is the primary way we are able to see objects in the night sky?
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What is the term for an object that orbits a planet?
What is the term for an object that orbits a planet?
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What is the typical rate of meteorite landings on the Earth's surface?
What is the typical rate of meteorite landings on the Earth's surface?
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What is the primary source of dust that causes meteor showers?
What is the primary source of dust that causes meteor showers?
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When are artificial satellites most visible from the Earth's surface?
When are artificial satellites most visible from the Earth's surface?
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What is the main function of the thousands of artificial satellites in orbit around the Earth?
What is the main function of the thousands of artificial satellites in orbit around the Earth?
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What is the term for a small particle of rock or dust that enters the Earth's atmosphere?
What is the term for a small particle of rock or dust that enters the Earth's atmosphere?
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Study Notes
Stars
- Stars are huge balls of gas that give out light
- They appear to twinkle because of the light flickering
Planets
- Planets are objects in orbit around stars
- They are made of rock or gas and do not give out light
- They are visible because light is reflected off them into our eyes
- Our Sun is not the only star to have planets in orbit around it
- Exoplanets are planets that orbit other stars
Moons
- Moons are objects that orbit a planet
- They are also called natural satellites
- Most planets in the Solar System have their own moons
The Moon
- The Moon is in orbit around the Earth
- It is made of rock
- It is the only object beyond the Earth that a person has set foot on
Comets
- Comets are made of ice and dust, like a big, dirty snowball
- They orbit the Sun and produce a tail that makes a spectacular sight in the sky when they get near the Sun
- We see comets because they reflect light from the Sun
Meteors and Meteorites
- Meteors are particles of dust or pieces of rock that enter the Earth's atmosphere and burn up
- They produce streaks of light in the night sky
- Meteorites are pieces of rock that survive to reach the ground
- Meteor showers occur when the Earth moves through the dust left by a comet
Man-made Objects
- There are thousands of artificial satellites in orbit around the Earth
- Many are part of the global positioning system (GPS)
- The International Space Station is the biggest and brightest of all the man-made objects orbiting the Earth
- Satellites can be seen near dawn or dusk when they reflect light from the Sun
Stars
- Stars are huge balls of gas that give out light.
- When you look at a star, it might appear to twinkle due to the light flickering.
Planets
- Planets are objects in orbit around stars.
- They are made of rock or gas and do not give out light.
- Planets are visible because light is reflected off them into our eyes.
- Our Sun is not the only star to have planets in orbit around it.
- Exoplanets are planets that orbit other stars.
Moons
- The Moon is in orbit around the Earth and is made of rock.
- The Moon is the only object beyond the Earth that a person has set foot on.
- Most of the other planets in the Solar System have their own moons.
Comets
- Comets are made of ice and dust, like a big, dirty snowball orbiting the Sun.
- As comets get nearer to the Sun, they produce a tail that makes a spectacular sight in the sky.
- We see comets because they reflect light from the Sun.
Meteors and Meteorites
- Meteors are produced when a particle of dust or a piece of rock enters the Earth's atmosphere and burns up.
- A piece of rock that survives to reach the ground is called a meteorite.
- Meteorites hit the surface of the Earth all the time, with about a dozen landing on you every hour.
- Meteor showers occur when the Earth moves through the dust left by a comet.
Man-made Objects
- There are thousands of man-made or artificial satellites in orbit around the Earth.
- Many satellites are part of the global positioning system (GPS), which pinpoints the position of something using signals from lots of satellites.
- The International Space Station is the biggest and brightest of all the man-made objects orbiting the Earth.
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Description
This quiz covers the basic concepts of stars and planets, including their composition and movement in the night sky.
