As temperatures drop and snow accumulations rise, active kids begin clamoring for old-fashioned winter fun. A few precautions can help ensure that children stay safe while playing outside. Dress kids in warm, water-resistant layers with a hat, scarf, and mittens. Make sure they take indoor breaks every 30 to 40 minutes, since children lose body heat faster than adults. (This also helps keep them feeling fresh -- accidents often happen when kids are tired.) And have them drink water and wear sunscreen -- dehydration and sunburn also occur in the winter. If safety gear is recommended for a specific sport, be certain kids are wearing it. (Our model was photographed in a studio, so the gear wasn't necessary.) Most important, children should always be supervised by adults.