By: KDKA-TV News Staff

PITTSBURGH (KDKA) — An annual Carnegie Science Center tradition is back!

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The Science Center wants you to save a snowball now in exchange for a discounted ticket later.

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All you have to do is go out and make a snowball and save it in your freezer.

You’ll be able to take it to the Science Center on Sunday, June 20 and receive a discounted ticket for $5.

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You’ll also get to launch your snowball from a cannon at the snowball launch site.