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your little chick does need heat.
You can use a heat lamp, or you can use a heating pad (http://www.backyardchickens.com/t/956958/mama-heating-pad-in-the-brooder-picture-heavy-update)
the chick will want it warm (around 85 at a week old, dropping 5 degrees each week). But, chick will need to be able to get into the heat, and out of the heat - so under the lamp or heating pad to warm up, and out to eat, drink, play.
feed and water available 24/7 (but chickens don't eat in the dark)
chicks have a tendency to drown easily in water, so if you are not using a special chick waterer, make sure the container is small, and very shallow. If necessary, put marbles or stones in the water to keep it shallow. a saucer can work for this, or even a jar lid for a new chick.
chickens are social and really need flockmates. You might want to get more chicks, or find someone who has chickens who will take this one.
Best of luck and welcome to byc.