cart Shopping Cart cart(0)

How to make honeycomb

You will need:

  • Honey, water, sugar, baking soda, butter (or oil if you wish)
  • Baking tray, saucepan, whisk, spoons, cup, stove and an oven
  • Adult help!

Love honeycomb!


  1. Grease a baking tray with the butter
  2. Add 2 tablespoons of honey, 2 tablespoons of water and 3/4 cup of sugar to a saucepan. Cook the ingredients over high heat, without stirring, to about 150oC. The sugar should melt, bubbles should form and the sugar should caramelize to a light brown or amber colour.

    sugar syrup boiling
    Bubbling sugar syrup
  3. Remove the pan from heat and whisk 1.5 teaspoons of baking soda into the hot syrup. This will cause the mixture to foam up.
  4. Stir just enough to mix the ingredients and then pour the mixture into the baking tray. Don't spread the mixture as it will pop the formed bubbles.
  5. Allow the mixture to cool. Break the honeycomb up and eat or store!

    Honeycomb ready to eat!

Back to Kitchen Chemistry science experiments

Back to heat experiments

Why Does This Happen?

The sodium bicarbonate reacts when you add it to the hot sugar syrup. 
This is due to the heat of the solution breaking down the sodium bicarbonate into carbon dioxide, water and sodium carbonate. The actual chemical reaction is as follows:

2NaHCO3 > Na2CO3 + CO2 + H20

This type of reaction is known as a thermal decomposition reaction which means that the heat of the solution breaks the chemical bonds within the chemical compound.The bubbles from the carbon dioxide in the reaction caused the honeycomb mixture to rise.

Be Amazing Book Front Cover; Ben Newsome, teacher & founder of Fizzics Education. Be Amazing -how to teach science the way primary kids love
Be Amazing!
How to teach science, the way primary kids love

Read more about Be Amazing
Want more ideas for teaching science?

Subscribe to the FizzicsEd Podcast!

Listen to FizzicsEd on Apple Podcasts

FizzicsEd podcast available on Stitcher

Join our newsletter for more science teaching thoughts & ideas

Join the Fizzics newsletter

Back to Kitchen Chemistry science experiments

Back to heat experiments

  • All you need to grow your own crystals
  • Kids love watching this at Christmas!

    science kits for sale
chemistry show during a Fizzics science show

Chemistry science show for schools

  • Discover the basics of chemical reactions
  • Designed for primary & high school audiences
read morebook now
mug caffeine

Caffeine coffee mug

  • Ok, it's not really a resource... but we like it!
  • Show your love of science in the staff room 
science kits for sale
  • Grow crystals, investigate slimes & more
  • 23 experiments for the classroom

    science kits for sale

>100 Free Science Experiments on this site!

Coloured shadows
  • Experiments to colour your class!
  • Easy & fun
read more
skeleton and student
  • Make fake blood & more!
  • Biology made simple
read more
electricity experiments
  • Circuit science for kids
  • Cheap materials found easily
read more
Vortex rings made with fog
  • Experiments using Newton's Laws
  • Step by step science
read more

School Science Visits: 

Call 1300 856 828 or use this form to discuss or make a show booking for your school!

Love Science?

Signup to our fortnightly email! Learn more

Contact us

1300 856 828

Unit 10/55 Fourth Ave
Blacktown, NSW 2148, Australia
facebook-icon Apple Podcast Icon  twitter-icon
linkedin-icon youtube-icon   pinterest-icon