CURRICULUM

Cosmic Objects: Four Difficulties, 4000 Levels

Cosmic Objects has four difficulties with 1000 levels each and ten questions per level; picture the object's position and features before choosing. Cosmic-object levels ask for stars, galaxies and extreme objects; classify the object before the name.

宇宙天体基础闯关Cosmic Objects Basics1000 关宇宙天体进阶闯关Cosmic Objects Intermediate1000 关宇宙天体高阶闯关Cosmic Objects Advanced1000 关宇宙天体挑战闯关Cosmic Objects Challenge1000 关

How it works

  1. Start at the basic difficulty.
  2. Ten questions per level; clear one to unlock the next.
  3. Review at 1/3/7/14/30 days.

FAQ

Which difficulty?

Start at basic and move up when accuracy stays above 80%.

How many levels each?

1000.