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This test is run by .
Note that your final mark will not be saved in the system.

Cosmology Reorder

Target Level
C
Running Total
0
0%
Attempt
1 of 3

Drag and drop the boxes into the correct order.



  • Quarks become bound into hadrons
  • Attraction between stars form galaxies
  • The Higgs field forms and particle-antiparticle pairs form via pair production
  • Light nuclei (hydrogen, helium and trace amounts of lithium) form
  • Gravitational collapse of matter forms stars
  • Electrons bind to nuclei and the cosmic microwave background is emitted
  • All matter and energy is contained in a infinitely hot and dense point
  • The fundamental forces become distinct and photons form
  • The universe begins to expand and cool

This is your 1st attempt! The marking algorithm gives more marks for getting the right order first time.

Pass Mark
70%