Valentines Day Chemistry
Love is in the air for Valentine’s Day! Check out these links for ideas to celebrate it chemistry-style. You can make science-themed valentines, create a borax crystal heart, learn a valentine demo to share with your sweetheart, and more.
- Chemistry Valentines
Delve into your creative side—design your own valentines with chemistry-related sayings and poems.
- Printable Chemistry Valentines
Does your valentine shine like a carbon allotrope? Find this and other free chemistry valentines—ready to print and share!
- Goldenrod Valentines
Why send your sweetie an ordinary valentine when you can give them a color-changing one? It’s all courtesy of chemistry.
- Valentine's Day Cards Fit for Geeks
For when a typical Valentine card won’t do. Check out the science-themed cards in this collection.
- Geek Love: Send a #Chemvalentine To Show 'Em You Care
It’s the Top 20 #Chemvalentines to woo your science sweetie.
- 12 Science Valentines
Still looking for the perfect way to say, “I love you”? Plenty of ideas here, including one done science-fair-style.
- Scientific Test Tube Valentines
Make a valentine gift with a science twist using plastic soda bottle preforms and your favorite Valentine candy.
- Borax Crystal Heart
It’s super simple to make a beautiful crystal heart. Get ready with a pipe cleaner, borax, and hot water.
- Making Bath Fizzies for Valentine's Day
Have fun making bath fizzies, then give them as a Valentine gift!
- The Vanishing Valentine
This oxidation–reduction reaction can add some Valentine color to your day. Pink… to colorless… to pink… to colorless…
- Valentine’s Day Color Change
It’s pink to colorless—take two. Watch what happens when you turn up the heat on this color change demo.
- Nothing Says Valentine’s Day Like Marie Curie
Even more Valentine chemistry gifts to share—atomic emission spectra necklaces, scarves, and scientist-themed cards
- Valentine's Day Periodic Table Wallpaper
Gaze at these elemental hearts as you do your homework and fall in love with the periodic table all over again.
- Valentine’s Day Lab (student handout)
Valentine’s Day Lab (instructor notes)
How do you prefer your valentine? Magic? Expensive? Pretty? With a BANG? Use chemistry to create your top choice!
- How Love Changes Your Body Chemistry
Feeling a love connection? Find out which chemicals play a role.
- Valentine's Day and Love—On the Brain
Think your heart has the most pull in matters of love? The brain has something to say about that.
- Love Hurts: Brain Chemistry
How does heartache begin? Read about how rodents helped us learn more about the chemistry of relationships.
- The Chemicals of Love
These compounds can mean thrill, pleasure, even obsession. What are they?
- The Colour and Aroma of Roses
Give a friend a dozen of these… chemical compounds.
- Eternity Roses
These flowers won’t last an actual eternity, but it’s still pretty long. How do they stay looking fresh?
- The Sweet Scent of Success
A bottle of perfume takes the right chemistry, but sometimes it also needs a little luck.
- Attar of Roses
Give your sweetheart a rose for Valentine’s Day. Or… just buy one for yourself and try this experiment.
- Colored Flowers
Let them know you care with flowers. But don’t forget the chemistry twist—color them first using a classic capillary action experiment.
- Paper Chromatography with Valentine's Day Flowers
Have your valentine flowers left behind only dried up petals and a memory of the day? Let the petals keep on giving with this chemistry activity.
- Love Potion Flower
Can’t decide if your sweetheart would prefer white or pink flowers? Give them both with this color-changing flower.
- The Science and Art of Perfumery
This activity explains how “the perfume industry moved out of the garden and into the lab.” Learn more!
- Scintillating Scents: The Science of Making Perfume
Make your own perfume with Crisco? Give it a try!
- Home Perfumery
Make your own perfume distillery at home and preserve the beautiful smell of your favorite plant.
- Aroma Compounds in Common Flowers
Put together a lovely bouquet of scent compounds.
- Eat Chocolate in the Name of Science
This easy experiment will test your senses! See how the taste of chocolate changes when frozen.
- Toxicity & Aphrodisia—The Chemistry of Chocolate
Here’s a sweet infographic to give you the scoop on two dramatically different effects of chocolate.
- Chocolate Crystal Concoctions
Valentine’s Day is a perfect excuse to immerse yourself in a study of chocolate. Get your taste buds ready!
- The Sweet Lure of Chocolate
Drool over this site as you learn the history of chocolate and try a hands-on “tempering” activity.
- What Your Need To Know About Theobromine
This chemical is the “poster child for Valentine’s chocolate chemistry.”
- Chocolate: The Sweet Taste of... Chemistry?
From bean to bar to your brain, there’s a lot of chemistry connected with this confection.
- The Poisonous Chemistry of Chocolate
Chocolate—such a delightful treat! But not for everyone…
- A Calendar Year of Chemistry
The calendar would not be complete without a Valentine’s Day video. Check out “The Chemistry of Chocolate” in this collection.
(all sites accessed January 2019)