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Valentine's Day Chemistry

Chemistry Projects and Topics for Valentine's Day


Love has a lot to do with chemistry, so if you're looking to connect Valentine's Day with chemistry, you've come to the right place. Take a look at these chemistry projects and topics that relate to Valentine's Day.

Vanishing Valentine Chem Demo

Try the Vanishing Valentine chemistry demonstration.
Sami Sarkis
You can perform the Vanishing Valentine chemistry demonstration for Valentine's Day or to illustrate the principles of an oxidation reduction reaction. The demo involves a color change of a solution from blue to clear to pink and back to clear.

Make Colored Flowers

Blue Daisy
Frances Twitty, Getty Images
It's easy to make your own colored flowers for Valentine's Day, especially carnations and daisies, but there are a couple of tricks that help ensure great results. Here's how you do it.

Mercury Beating Heart

Mercury is a heavy silvery metal that is liquid at room temperature.
Femto/Elementbox04, wikipedia.org
Bring a metal heart to life, using a trick of chemistry. The mercury "heart" rhythmically pulsates as if it was beating.

Gallium Beating Heart

This is a picture of pure gallium metal crystallizing from melted liquid gallium.
Tmv23 & dblay, Creative Commons License
The mercury beating heart is a classic chemistry demonstration, but mercury is toxic and harder to find than it used to be. Fortunately, you can use gallium for the beating heart demo. The effect is slightly less dramatic, but this version of the project is much safer. Gallium is useful for other projects, too, such as making a spoon you can bend with the power of your mind. Okay, really it's the heat of your hand, but no has to know your secret!

Heart Crystal Decoration

Grow borax crystals over a pipecleaner heart for these easy crystal heart decorations.
Anne Helmenstine
This crystal heart only takes a couple of hours to grow and makes a pretty Valentine's Day decoration.

Hot and Cold Pink Valentine Demo

This is a flask of pink liquid.
Medioimages/Photodisc, Getty Images
Watch a pink solution turn colorless as it is heated and return to pink as it cools. This Valentine's Day demonstration is especially dramatic when performed in a large test tube. Immerse the tube in a burner flame to initiate the color change and remove it to regain the pink color.

Chemistry of Love

Valentine's Day Roses & Candy
Andrea Church
Sweaty palms and a pounding heart don't just happen! It takes complex biochemistry to give you the symptoms of being in love. And lust. And security. Chemistry may even play a role in falling out-of-love. Get some of the details here, with links for further study.

Science Dating Ideas

Making liquid nitrogen ice cream together might be some people's idea of fun and romantic.
Nicolas George
Here's a look at some types of dates that might be perfect if your sweetie is a scientist or is interested in science. Dinner and movie is still a good plan, especially with the right movie, but I here are some additional dating ideas.

Make Cut Flower Preservative

Kris Timken/Getty Images
t's easy and economical to make your own cut flower preservative. Adding floral preservative will help keep your Valentine's Day flowers beautiful much longer than if you simply filled a vase with water.

Gifts You Can Make Using Chemistry

Carlos Davila, Getty Images
Your command of chemistry gives you a certain edge in the Valentine's Day gift-making department. Use your skills to make some cool presents, to keep for yourself or give to others.
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