April 27 - 3 May

Make It Count Challenge: DIY Science Week

Enter to Win Your Family a $500 At-Home Science & Tech Prize Pack!

You’re home together as a family more than ever. And while it’d be easy to coast through these days, we encourage you to Make It Count. 

This week, we’re linking arms with ARM & HAMMER Baking Soda to bring you exciting experiments to do as a family.  Make these days count with valuable experiences everyone will remember for years to come (and good news, Mom and Dad, scientific method NOT required).

When you’re done, share your experiment photos or videos for a chance to win a $500 science and technology prize kit or ARM & HAMMER branded school supplies from ClassTag.

Challenge accepted? Let’s go!

Post a photo or video of your family completing a science experiment inspired by ARM & HAMMER™ Baking Soda. Here’s how:

  1. Choose one science experiment from the videos below.
  2. Grab some baking soda and other needed household supplies.
  3. Gather the family and perform the experiment snapping a photo or video along the way.
  4. Share your photo or video on your public-accessible Instagram, Facebook, or Twitter account using hashtags #makeitcountchallenge AND #sweepstakes. You can also tag your friends to connect and share the fun!
  5. We’ll contact the winner via a comment below the entry post on the platform used to enter – keep your eyes peeled for the message & fingers crossed!

Terms and conditions apply. See Official Rules for details.

The Prizes

Share your experiment pics or video for a chance to win a science and technology prize pack (an approximate $500 retail value), or one of the second prizes consisting of ARM & HAMMER™ branded school supplies (approximate retail value of each second prize: $10).

At-Home Science Experiments

Balloon Magic


  • ARM & HAMMER™ Baking Soda
  • Empty Water Bottle
  • Vinegar
  • Funnel
  • Balloons
Abracadabra — it’s magic! Watch as a balloon inflates before your very eyes. Here’s what happens: Baking soda is a base and vinegar is an acid. When the two materials mix, a chemical reaction occurs and produces carbon dioxide gas. It is the gas that causes the balloon to inflate.

Ping Pong Ball Race


  • ARM & HAMMER™ Baking Soda
  • 2 - 3' x 2" Clear Plastic Tubing
  • Duct Tape
  • Vinegar
  • Liquid Dish Soap
  • Ping Pong Balls
On your mark, get set, go — the race is on! Watch the baking soda and vinegar chemical reaction send two ping pong balls on a fast race to the finish.

Magic Extinguisher


  • ARM & HAMMER™ Baking Soda
  • Safety glasses
  • Gallon pitcher
  • Cookie sheet
  • Lighter or matches
  • 6-12 votive candles
  • Vinegar
Light’s out with the invisible fire extinguisher! Here’s how it works: A fire needs three oxygen, fuel, and heat to exist. When you poured out the carbon dioxide gas from the pitcher, you removed the oxygen from around the fire and put out the flame. Magic!

Dino Eggs


  • 1 - 4lb box of ARM & HAMMER™ Baking Soda (makes 8-10 eggs)
  • Miniature dinosaur toys
  • A large bowl
  • Water
  • Vinegar
  • Food coloring (optional)
  • Spray bottle for vinegar (optional)
A fun variation on the baking soda and vinegar chemical reaction, your kids, from toddlers to teens, will love watching their dino eggs “hatch!”

Hanging Crystals


  • ARM & HAMMER™ Baking Soda
  • Food coloring
  • 2 - glasses or jars
  • Plate
  • Spoon
  • 2 - steel nails
  • Hot tap water
  • Piece of yarn or cotton string about 6” long
Watch cave stalactites and stalagmites grow right inside your home! This experiment is a great demonstration of what dripping water does in real caves. It takes a few days or even a week for the formations to grow, but it’s totally worth the wait.

About ARM & HAMMER™ Baking Soda

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