This test is run by .
Note that your final mark will not be saved in the system.
Note that your final mark will not be saved in the system.
Space Typeit
Target Level
4-5
Running Total
0
0%
Attempt
1 of 3
Type the correct answers into the spaces. Fill all the spaces before clicking ‘Check Answers!’
Planets, e.g. Earth, orbit , and planets are orbited by moons and . The Sun and all of the planets orbiting it make up our .
Stars are formed in vast collections of gas and dust called . Over time, gravity brings this gas and dust together to form a , which eventually becomes large enough to start nuclear , at which point it becomes a main sequence star.
Once a main sequence star has run out of fuel, it moves on to the next stage of its lifecycle.
For a high mass star, it first expands into a red supergiant, which then explodes in a . Once this finishes, the left over core can be either a neutron star or a .
For a low mass star, it first expands into a red giant, which eventually sheds its outer layers. The core leftover is a , which takes billions of years to cool.
Our galaxy, the Milky Way, is one of trillions of galaxies. Light from the most distant galaxies has stretched-out wavelengths, an effect known as . This provides evidence of the theory, which states that the universe started from a small dense region, which expanded outwards, and is still expanding today.
Stars are formed in vast collections of gas and dust called . Over time, gravity brings this gas and dust together to form a , which eventually becomes large enough to start nuclear , at which point it becomes a main sequence star.
Once a main sequence star has run out of fuel, it moves on to the next stage of its lifecycle.
For a high mass star, it first expands into a red supergiant, which then explodes in a . Once this finishes, the left over core can be either a neutron star or a .
For a low mass star, it first expands into a red giant, which eventually sheds its outer layers. The core leftover is a , which takes billions of years to cool.
Our galaxy, the Milky Way, is one of trillions of galaxies. Light from the most distant galaxies has stretched-out wavelengths, an effect known as . This provides evidence of the theory, which states that the universe started from a small dense region, which expanded outwards, and is still expanding today.