3. Which of the following lists gives the order of INCREASING sizes:
A. Sun, Jupiter, Earth, Moon
B. Earth, Moon, Jupiter, Sun
C. Moon, Earth, Jupiter, Sun
D. Moon, Jupiter, Earth, Sun
4. Which of the following lists gives the order of DECREASING sizes:
A. Universe, galaxies, planets, stars
B. Galaxies, Universe, stars, planets
C. Universe, galaxies, stars, planets
D. Galaxies, stars, planets, Universe
5. The solar system is made up of many objects. Which one of these is not in our solar system?
A. Planets
B. Asteroids
C. Comets
D. Galaxies
6. Mars is one planet in our solar sytem. Which one of these is a moon, not a planet?
A. Saturn
B. Io
C. Venus
D. Mercury
7. Light takes a long time to travel the vast distances through space. When we observe a nearby galaxy through a telescope we are looking at the galaxy ...
A. ... as it was last year
B. ...as it was over a million years ago
C. ... as it will be next year
D. ...as it will be over a million years from now
8. A light year is
A. the time it takes light to travel to the Sun
B. the time it takes light to travel 1 km
C. the distance light travels in a year
D. the distance travelled by the Earth in a year
9-12. Read the passage below and add the missing words:
The solar system was formed from a large cloud of
.
Scientists think it formed about
years ago.
The Sun formed at the centre of the solar system, using
to generate heat and light.
All elements that are heavier than
are formed in stars using this process.
13 -15.
Objects in space formed one after the other. Can you put them in order starting with the first to be formed?
