Whether they're building snow forts or hitting the slopes, here's how to keep them protected from the elements.

• Layer, layer, layer! Kids lose body heat faster than adults, so dress her in one more layer than you’d dress yourself.

• Make sure his head, neck and hands are always covered. Avoid scarves and hood strings that can get wrapped too tightly around his neck.

• Give them lots of water to regulate their body temperature; it’s easier to get dehydrated in cold weather.

• If it’s over 30 degrees, bring the kids in every 40 minutes or so for a break, and more often if it’s colder.

• If her skin looks gray, pale or blistered, it may be frostbite. Bring her inside and put the affected area in warm water—not hot.

• Watch for signs of hypothermia, like shivering, slurred speech and uncharacteristic clumsiness. If you think your child is affected, call 911.