Ea Mo Ju Ga Ne Tr
this is a sample to test the grid system

What do you know about planet and moons of solar system?

Make pairs.
Each pair is composed of a planet of the Solar System and one of it's moon.

 Earth
Earth Moon
Moon Jupiter
Jupiter Ganymede
Ganymede Neptune
Neptune triton
Triton

Guidelines

How to create a pair:

  • Select and element from the top list, it will become highlighted.
  • Click onto one empty box (the order does not matter).
  • Repeat the operation for the second one.