What caused the extinction of the dinosaurs? One theory is that a large asteroid collided with the Earth, producing greenhouse gases that changed the Earth’s climate. Greenhouse gases are gases that trap and hold heat in the atmosphere. Some greenhouse gases include carbon dioxide, water vapor, and methane. Can you make a greenhouse gas with our Chemistry Table?
congratulations! you found the last letter: i!
Now unscramble the letters to find the exhibit that lets you unearth the past!