What is the nearest galaxy to our own (milky way)?
Do all of the objects in the night sky emit light? (emit means gives off)
No - many objects reflect light such as the Moon. Stars emit light however.
Compare and contrast the inner and outer planets of the Solar System.
- The inner planets are Mercury, Venus, Earth, and Mars.
- The outer planet are Jupiter, Saturn, Uranus, Neptune.
- The inner planets are smaller than the outer planets.
- The inner planets are made of rock but the outer planets are made of gas.
- The inner planets have shorter years than the outer planets.
- All four of the inner planets are visible from Earth but only one of the outer planets.
- The outer planets have lots more moons than the inner planets.
- The outer planets are a lot colder than the inner planets.
Which planets in our Solar System are called the 'inner planets'?
Mercury, Venus, Earth, Mars
Which planets make up the 'outer planets' of our solar system?
Jupiter, Saturn, Uranus, Neptune
The planets of the solar system orbit the sun in a squashed circular direction. What do we call this squashed circle?
An ellipse shape
In our Solar System, what is found between Mars and Jupiter.
An Asteroid Belt
Put the following in order of size (smallest to largest): Solar System Planet Galaxy Universe Sun
Describe the 'outer planets' of our solar system.
Large, further away form the sun, gas giants (made from gas)
Give 2 examples of dwarf planets
What is meant by a terrestrial planet?
A planet that is made from rock
Does every object that we see in the night sky orbit the Earth?
No! Meteors, stars don't etc.
Describe the inner planets of our solar system.
Smaller, closer to the sun, terrestrial (made from solid rock)
Are the stars in the sky smaller than our Sun?
No - each star is a Sun and some are bigger than ours!
Do planets appear to wander across the night sky?
Yes, because they are orbiting the Sun.
Do all of the objects in the night sky emit light?
No, many objects such as the Moon reflect light.
Does everthing in Space orbit the Sun?
No e.g. asteroids do not.
How do scientists think that the Solar System was formed?
Bits of rock and dust were pulled together by gravity
about 5 billion years ago
Describe observations made by scientists that support their theory about how the Solar System was formed.
They look at clouds of gas and dust.
To see if exoplanets (planets around other stars) have formed.
If you jumped in a spaceship and travelled into space from Earth, which order would you observe the following?
Asteroid belt, Edge of our solar system, Andromeda Galaxy, the Moon, Edge of the Milky Way Galaxy, Saturn
The Moon, Asteroid belt, Saturn, Edge of our Solar System, Edge of the Milky Way, Andromeda Galaxy