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Science club Spring 2025
Science club Spring 2025
We have enjoyed a number of new activities this half term which have included making paper aeroplanes and simple boomerangs, exploring the surface tension of water and making a paper rollercoaster for a marble.
Using droppers, we counted the number of drops of water we could drip onto coins.
You can see how the water makes a 'dome' on top of the coin.
Our winner- the first to float her paper clip on the surface of the water.
Have a go yourself- it really is possible!
Click this picture to find out more about what we tried.
It is possible to make the loop the loop, a few of us did it!
Have a go at this amazing hoop glider- just 2 paper loops and a straw sciencebob.com/the-incredible-hoop-glider/
Other investigations this term included finding the strongest material to make Christmas paper chains. We tested equal sized tissue paper, tinfoil, crepe paper and thin card strips to make our loops. Which do you think was the strongest?
We also cut open a variety of different fruits to see which had the greatest number of seeds: lemons, apples, tomatoes and kiwis. Did you know- a kiwi has between 500 and 2000 seeds? (We 'googled' rather than count them all...!)
One of our favourite investigations this term was creating invisible ink. We tried lemon juice and used heat from an iron to reveal our secret messages but we found a much better one. A message can be written using a solution of baking soda and water which can be revealed using a solution of turmeric dissolved in rubbing alcohol. Our results were great!
https://www.sciencebuddies.org/stem-activities/invisible-ink?from=Blog Have a go yourself but watch out as turmeric can stain.
We used mixtures of baking soda and water to create a snow 'dough' that could create a mini-snowman. We added washing up liquid to a second mixture and then explored what happpened when we 'melted' our snowmen with vinegar.
Exploring cause and effect
Exploring cause and effect
We discussed how Rube Goldberg developed machines that used chain reactions of forces to create an end result (mush like in the board game Mousetrap. Using rulers, dominoes and lollysticks we created machines with changes in direction to try and get the pingpong ball into a cup.
Science Club Autumn term 2024
Science Club Autumn term 2024
Our first week was near Bonfire night so we explored ways to make 'fireworks' in a jar. We had a jar of water, and then mixed a spoonful of oil and a few drops of food colouring. When we added the coloured oil to the water, we found that oil and water do not mix and that the colouring floated down through the water creating a firework effect.
We also explored how soap will break the surface tension of milk. First, we poured milk onto a plate and added drops of food colouring. When we added a drop of soap the colours seemed to rush across the milk. We also tried food colouring on a pile of bicarbonate of soda on a filter paper. When we added a few drops of vinegar, the chemical reaction caused the colours to spread like fireworks.
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