Burping Balloons

If you eat or drink too quickly you might find you burp! Burping is how extra gas is expelled from the body. The gas is forced out of the stomach up the oesophagus and out of the mouth!

These burping balloons are very easy to set up and great fun to watch. The balloons will only inflate a little, so don’t expect anything too impressive!

If you like this activity you’ll LOVE my other activity ideas for learning about the body!

You’ll need

2 plastic or glass bottles

2 balloons

1 teaspoon of dried yeast

1 teaspoon bicarbonate of soda ( baking soda )

1 teaspoon sugar

20 ml vinegar

20ml warm water


Carefully add 1 teaspoon of yeast and 1 teaspoon of sugar into one bottle.

Pour about 20ml of warm water into the same bottle and quickly pop a balloon over the top of the bottle.

Make your own science kit

Last year I made some very simple homemade science kits for my children to give to friends who love science. Each kit contained the materials and instructions for 5 different investigations.

I also have lots more FREE printable science experiment instruction sheets you can download, which would be a great addition to any homemade science kit.

This little kit makes an excellent, inexpensive science gift for Christmas or a birthday.

My super scientist certificate is a lovely extra resource as well.

How to make your own science kit

materials for a homemade science kit in a cardboard box

What you’ll need to make a homemade science kit


Tissue paper



Pom poms

Elastic bands

Lolly sticks

Filter paper

Film canisters

Effervescent vitamin tablets – give these to an adult

Ping-pong balls or pom poms


Place all the items in a shoebox-sized box. I made the catapult, but another idea is to include the lolly sticks and

Reindeer and Snowman Lava Lamps

Lava lamps are a simple but fun science experiment for kids using materials you probably already have in your kitchen cupboards. We’ve given these a Christmas twist by decorating them like a reindeer and a snowman. Crafts are not my strong point, so I’m sure you can do a much better job with your Christmas lava lamp.

If you’re on the hunt for awesome science gifts, I’ve got some great DIY science kit ideas and ready-made science kit suggestions too.

I also have FREE a Christmas Lava Lamp printable instruction sheet you might find handy.

Christmas Lava Lamps

Reindeer lava lamp instructions

Don’t forget to check out my Christmas Science Ebook, which contains 12 printable Christmas themed experiments and activities, perfect for this time of year.

Christmas lava lamps. Homemade lava lamps decorated like a snowman and reindeer

How to make a Christmas Lava Lamp

What you need

A clear plastic bottle or jar
Vegetable oil
Food colouring and decorations
Alka Seltzer or effervescent

Easy Science Elf Ideas

We’ve all been there, the last-minute elf panic, wondering what simple but exciting mischief they will get up to that night.

This year, Science Sparks makes the elf antics easy with 24 super simple science ideas and a bit of elfish fun to delight elves and children alike.

I’ve tried to make each day as simple as possible with templates for some activities and by only using very basic materials that hopefully you already have at home.

You can print off the whole pack or just a selection of 4 days.

24 days of easy elf ideas. Image shows one of a set of 4 science ideas for the elf.

Elf Ideas Days 1-4

Tidy up time

Leave out a balloon and tissue paper chopped into small bits. These could be cut into candy cane shapes if you want to be extra fancy.

An elf sat near lots of tissue paper pieces in a mess with a balloon. A fun elf trick

Boiled or not

For this one, boil one egg and leave the other uncooked. The boiled egg will spin more smoothly than the raw one.


Africa Science News Service

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