Did you know you can make butter in a jar using just cream?Cream is basically fat droplets mixed in water. When you shake the cream in the jar the fat droplets stick together to form butter and a ...
Kitchen Science
Raising Raisins – baking soda investigation
What do you think will happen if you put a raisin in a glass of water?It will sink!Do you think it's possible to make raisins rise to the top and jump around?Find out in this simple ...
Meringue Towers
There are two parts to today's activity. First you're going to discover how meringue is made. Can you believe it starts out as egg whites and sugar??Once you've made some delicious meringue, ...
How to make oobleck
Making oobleck was one of the very first science activities I wrote about on Science Sparks. I've given this very old post about how to make oobleck a bit of an update and refresh so I hope you like ...
Blow Up a Balloon with Lemon Juice
We have had lots of fun blowing up a balloon with lemon juice today, although it's taken several attempts to perfect our technique. What you'll need A small bottle or jar Lemon ...
Easter STEM Challenges
Easter is fast approaching, so it seems like the perfect time to try some Easter STEM Challenges. We've been busy testing these for you over the last couple of weeks and would LOVE to see your ...
STEM Challenge – Transport an egg down the zip wire
Our next egg STEM challenge for Easter is to build a harness to safely transport a small egg down a zip wire. Once you've built a suitable harness for a chocolate egg, you could try a real egg ( maybe ...
Earthquake Science Investigations
Did you know the Earth is made up of large pieces of rock called tectonic plates? Where two tectonic plates meet is called a fault. If two plates rub together at a fault waves of energy ( seismic ...
Why does salt melt ice?
Why does salt melt ice? We've experimented with ice and salt before and found that salt does make ice melt, but why does this happen?The photo above is just a block of ice withe pipe cleaners ...
How to make pH indicator test strips
Making pH indicator test strips is surprisingly easy and I was very impressed with how well they worked. These are a lovely alternative or additional activity to making red cabbage indicator ...
