Lock Quest: The Moon Base Airlock

The airlock is open!

The airlock hisses open. Outside, the gray dust stretches to the horizon, and hanging in the black sky is a bright blue marble. That is home.

You are now a Lock Master. Go tell your teacher!

Your mission

The moon base airlock is locked five ways. The Moon is a ball of rock with no air at all. With no air, there is no wind, no weather, no fire, and no sound. The sun lights up half of the Moon at all times, and as the Moon travels around the Earth we see more or less of that bright half. Space rocks have been crashing into it for billions of years. Professor Mouse left her photos in the control room.

How to crack a lock

• Pick any lock from the menu at the top. You can solve them in any order.
• Read every clue before you start. One clue alone is never enough.
• Use scratch paper. Draw pictures, make lists, and cross things out.
• Tap the buttons to build your answer. Then press "Try the lock".
• A lock will not tell you which part is wrong, so be sure before you try.

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