A window made from a sheet of glass A window made from two sheets of glass stuck together A window made from two sheets of glass separated slightlyGlassby air in betweenLet's think together! Why can a jacket keep you warm? It's because of the padding. The answer is ... ③! For it contains air in between. That's right! It's warmer with something inside! The coats, which you wear, feels warm because it also contains air.That means...Correct!The air can keep the cold out!Oh, I see!I got itI got itWhich house is the warmestWhich house is the warmest
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