3 games from the Air Is Matter simulation: Air or Not?, Air at Work, Predict It. Each one has a Warm up, Explorer and Expert level.
Is it full of air (or another gas)? Drag each card into the right group – or tap a group. You have 2 tries for each one.
How is air helping? Drag each card to its partner – or tap a card, then tap its partner. You have 2 tries for each one.
Think about air. Read the question, think, then tap your answer. You have 2 tries for each one.