Sky

How to Make Sky?
Air + Cloud

What Does Sky Make?
+Antarctica = Aurora
+Cheese = Moon
+Earth = Horizon
+Egg = Bird
+Explosion = Fireworks
+Fire = Sun
+Fish = Flying Fish
+Glass = Telescope
+Horse = Pegasus
+House = Skyscraper
+Life = Bird
+Meteoroid = Meteor
+Moon = Night
+Mouse = Bat
+Night = Star
+Ocean = Horizon
+Paper = Kite
+Pressure = Atmosphere
+Sea = Horizon
+Squirrel = Flying Squirrel
+Star = Space
+Stone = Moon
+Sun = Day