This Valentine’s Day, give a message from your heart—-and your brain and lungs! Maybe your liver and bones too, but we don’t have those cards yet. We didn’t forget your fingertips, though!
Every card needs a silly joke, and these four cards have them. But there’s more: they also tell you something interesting about the body part in the image. Why don’t we hear about heart cancer? Because heart cells don’t do cell division. Did you know one of your lungs is smaller than the other? Or that your unique fingerprint has developed before 20 weeks of gestation (preemie babies have them!)? The brain fields all of the body’s pain signals, but itself has no pain receivers. And those aren’t even all of the cool facts on the cards.
This set has one more great feature: if you want, you can cut the design free of the background paper on one side, and fold along the printed line. The card will stand up, and the facts will be on the back. (see example images)
Print the downloaded page onto card stock or other heavy paper with a laser printer (or take it a copy shop). If your printer has a setting for “print actual size,” choose it for best results. Cut the cards apart with a straight-edge cutter. They’ll fit into invitation-size envelopes that you can find at many discount stores like Walmart.
Happy Valentine’s Day—and say it with science!