The Infamous Coca Cola and Mento Trick
Sep11

The Infamous Coca Cola and Mento Trick

The science experiments my children talk about for months afterwards are generally the messy ones, like our splatter patterns, glow in the dark oobleck, baking soda experiments and the well known coca cola and mento trick. If you try this I’d definitely do it outside, it’s VERY messy and sticky. We dropped two Mentos into a bottle of normal Cola and Diet Cola. I used the cheapest brands available in our local supermarket....

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Making and Filtering Potions
Jul08

Making and Filtering Potions

Last year we went to the Eden Project in Cornwall where they had a wonderful Room on the Broom tent full of fun witchy activities. My girls loved making potions full of brightly coloured glitter and lovely smelling herbs. Back at home my 5 year old wanted to add water to make a ‘proper potion’ but before we did that we tried some filtering to separate the herbs from the glitter. What you need Bowls Different sized sieves A...

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Frozen Kool-Aid Oobleck
May13

Frozen Kool-Aid Oobleck

This is a fun summer twist on sensory play with Oobleck. I simply added a small amount of kool-aid mixed with water to my goo (cornflour ( cornstarch ) and water), then carefully poured the mixture into shaped ice cube trays before leaving in the freezer for a few hours. The frozen kool-aid oobleck slipped out of the moulds easily and took just a few minutes to be warm enough to handle.   The oobleck smelled delicious, thanks to...

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10 AMAZING Baking Soda Experiments
Apr30

10 AMAZING Baking Soda Experiments

Baking soda experiments or activities are a great, safe and easy way to introduce the concept of a chemical reaction to children. Baking Soda is alkaline and reacts with acids such as vinegar, releasing carbon dioxide ( a gas ) and water. The fizz produced is brilliant fun for children to watch especially if you combine with washing up liquid ( dish soap ) to make even more bubbles or add a bit of food colouring, ice or a theme. Here...

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Jumping Frogs
Jan02

Jumping Frogs

Have you ever had a static shock from a shopping trolley or an escalator? The shock is because of static electricity which can cause materials to attract or repel each other. A fun way to demonstrate static electricity is by making jumping frogs. Equipment Balloon Paper, cut into shapes. We used sugar paper, but tissue paper would also work brilliantly. Woolly jumper or hair Method Cut up your different types of paper into frog shapes...

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Dissolving Candy Canes
Dec28

Dissolving Candy Canes

We actually did this experiment before Christmas, but it’d also be a fun way to use up your extra candy canes after Christmas. What you need: 3 containers of the same size Vinegar Cold Water Hot Water Method Set up your containers, being careful with the hot water. Add a Candy Cane to each container the same way up. Observe at 5 minute intervals ( can you design a table to record your observations? ) Results The photo below...

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Viscosity and Jelly
Nov17

Viscosity and Jelly

We recently tried exploring viscosity of fluids using water, oil, golden syrup and honey. The main problem we had was that for some of the liquids the marble dropped too fast for us to time. With this in mind we decided to try the same experiment with different strength jellies. I made three different jelly mixtures in test tubes. Solution A – Normal Jelly Solution B – Normal Jelly diluted with half water Solution C-...

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Exploring Viscosity
Oct09

Exploring Viscosity

What do you put on your porridge? We noticed that sometimes our honey and golden syrup take a long time to pour, whereas water and milk pour almost too fast. We’ve done viscosity experiments before by letting the liquids flow down an inclined board. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. This is also a great opportunity to practice drawing and using...

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Candy sorting
Aug19

Candy sorting

In the UK we have some chocolate covered sweets called Revels. Inside each bag are different flavoured chocolates, maltesers, plain chocolate, coffee flavour, orange flavour, toffee and chocolate covered raisins. They seemed like the perfect thing to use for a sorting activity. I set the children the task of sorting them into the different flavours without eating them. We talked about the different ways we could tell the difference...

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Acid or alkali? Making a red cabbage indicator.
Aug06

Acid or alkali? Making a red cabbage indicator.

Acids and alkalis are substances that can be found in the science laboratory and at home all around us. Acids can be found in the food we eat, in our body and some acids can be very harmful. Alkali’s are another group of chemicals that react with acids. Substances such as soap are alkalis and bicarbonate of soda which we use in baking but also harmful things like bleach. So how do we know when a substance is an acid or an...

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