Difficulty Level 1 - ideal for kids aged 3+, fun but messy
During home-schooling, why not get your kids involved in a fun, creative activity followed by a simple science experiment that teaches how using soap eliminates germs and a little about surface tension. Don't worry, I'll give you a crib sheet for the science bit !
I can't take credit for this experiment as someone else more creative than me came up with the idea but I thought it a cool experiment to share. In these times when Corona Virus is confining us to our homes and hygiene is king, the experiment will help you kids understand the importance of regular hand-washing with soap.
Soap Foam Prints are incredibly vibrant and have a really cool texture and pattern. When the foam dries on the paper, it pops and condenses to create a pattern reminiscent of leather. The prints feel smooth and waxy.
What you'll need
Ok, you might not have everything to hand, especially the paper for water colour paints but this is easy to buy on the internet for home delivery.
During these times of COVID19 confinement, please don't forget that your order will have passed through many hands in the logistics chain. Therefore, I recommend that you wear gloves, wipe down the external packaging with an anti-bacterial agent and disguard the external packaging to a building outside if you have one or in the communal waste. This might seem a bit OTT but better safe than sorry. Since the lesson starts here, explain to your children what you are doing and why.
1. PAPER FOR WATER COLOURS OR A THICK PAPER/CARD
2. LIQUID PAINTS - WATER COLOURS, ACRYLICS ...
3. STRAWS, WHISKS OR ANYTHING THAT YOU CAN USE TO BEAT THE SOLUTION TO CREATE A FOAM TOPPING
4. A LARGE BOWL
5. APRONS AND WATER RESISTANT COVER FOR YOUR WORK SURFACE
Creating the Soap Foam
1. Add 2 - 3 tablespoons of washing up liquid into a bowl and fill it with water
2. Beat the water with the whisk or create bubbles by blowing through a straw
3. When there's lots of soapy, foamy bubbles in the surface, drop liquid paint colours into the foam...keep mixing and blowing through the straw. Continue adding more colours. The soap foam will start to overspill the bowl !
4. When the soap foam is really deep and frothy with lots of colour mingling in, place a piece of paper over the top and press lightly, holding it down for a moment or two
5. Lift the paper off - it will be very foamy and very wet. put it aside to dry
6. As it dries, the foam will evaporate leaving lovely colours and patterns. Once dry, you could use a potato to make prints or save for another creative project.
The Science Bit
You can download a home-schooling activity that teaches the science behind soap and the clever way it gets rid of germs. You never know, you might learn too !
Download the Activity here
Happy soaping !