Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian Motion is named after a botanist, Robert Brown, who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules,…
We’ve all been there, it’s a hot day, and you really want an ice pop ( popsicle ), but it’s too cold to hold at first, and then the sun melts it before you can really enjoy it. This ice pop STEM challenge solves both problems! A fun twist on this, if popsicles aren’t your…
In today’s Around the World in 50 Experiments adventure, we’re heading to India, home to one of the oldest civilisations on Earth and a current population of over 1.4 billion people! India is a magical land of spices, colour, mountains, beaches, swamps, rain, curry and crafts. India has 22 official languages and is the birthplace…
Ammonites were sea creatures that lived before and at the same time as dinosaurs. They were a bit like a modern-day squid or octopus with a shell. Ammonite fossils have been found all over the world. The fossils resemble a curled-up snake, and for a while, people thought they were remains of snakes, earning them…
Atoms are tiny particles of matter which make up everything in the universe. Everything you see is made up of atoms. Scientists spent many years trying to understand the structure of the atom, with several models and theories being disproved or improved upon along the way. Today we know that atoms consist of a nucleus…
Magnets are a great tool to introduce young children to the wonders of science. There are lots of lovely, inexpensive chunky magnets available that can be used in lots of different creative ways. Car track magnet game This simple car track is a fun way to introduce young children to magnets. You can use my…
A smartphone is a great tool for science experiments with or without special apps. Make the most of your phone with these five science experiments you can do with a smartphone. Use your smartphone for science Make a smartphone speaker Imagine you’re in the park having a picnic and fancy playing some music. What can…
The Periodic Table is a table of all the elements we know about today. Elements are placed in order of atomic number ( number of protons in the nucleus ). The periodic table is a way of listing and organising elements. The rows of the periodic table are called periods, and the columns are known…
It’s time to head off on another adventure Around the World in 50 Experiments. Today we’re off to Israel. Israel is a small country in the Middle East on the eastern shores of the Mediterranean. Israel has a population of around 9 million people and shares a border with Egypt, Jordan, Syria and Lebanon. Its…
If you take a look outside, you’ll probably see lots of green. Green grass, green leaves covering trees and green plants, but why are leaves green? Most plant leaves are green as they contain a pigment called chlorophyll, which is green. Chlorophyll is needed for plants to absorb sunlight which they need to make glucose…
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