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The deepest part of the ocean is in the Challenger Deep valley of the Mariana Trench, which is about 10,935 metres deep ( almost 11km )! This is deeper than Mount Everest is tall. The Mariana Trench is in the Western Pacific Ocean. The deepest section is named after the two ships that first explored … Continue reading “How deep is the ocean?”
Sterling silver jewellery tarnishes easily because it contains copper. Copper makes silver stronger, but it binds with particles of sulphur in the air, producing silver sulfide, which is the black layer you find on silver jewellery after a period of time. This easy activity cleans jewellery by using a chemical reaction between aluminium foil, baking … Continue reading “Clean Jewellery with Science”
We’re celebrating the beginning of autumn with some lovely apple experiments today! Turn apples into boats, experiment with different ways to preserve them, find out why food goes bad and make your own delicious apple cider. If you’re not a big fan of apples but still love autumn, try my autumn and fall STEM challenges instead! Easy … Continue reading “Apple Science Experiments and STEM Challenges”
Autumn brings lots of inspiration for indoor and outdoor science experiments and activities. Leaves start to change colour and fall, conkers, helicopters, and other seeds drop to the floor, and the air becomes cool and crisp. It’s the perfect time of year to learn about seed dispersion, different types of trees and why leaves change … Continue reading “FREE Autumn Science Teaching Resources”
Colourful science experiments are often much more engaging for younger children than less colourful activities. Adding colour to a lava lamp, volcano or density demonstration makes the activity feel extra special. I’ve pulled together a list of my 10 favourite colourful science experiments for kids of all ages. 10 Colourful Science Experiments for kids Create … Continue reading “10 of the Best Colourful Science Experiments”
Birds can fly because they have wings, a streamlined body, strong muscles and very light, hollow bones. The bones of birds are very strong and adapted perfectly to flight. They have a dense, strong exterior and an interior strengthened with criss crossing ridges and webbing. The hollow interior isn’t just to reduce the weight of … Continue reading “How do birds fly?”
A convection current is the movement of a fluid ( such as air or water ) caused by differences in temperature. When part of a liquid or gas is heated, it expands and becomes less dense. The warmer, less dense fluid rises upwards, and the cooler fluid falls to take its place. This cycle of … Continue reading “5 ways to demonstrate convection currents”
It sounds completely counterintuitive, but whether hot water freezes faster than cold water has been debated for centuries. The Mpemba Effect The Mpemba effect is the term used for hot water freezing faster than cold water after a Tanzanian student named Erasto Mpemba found that his mixture of hot milk and sugar froze faster than … Continue reading “Does hot water freeze faster than cold water?”
A stacked ball drop demonstration is a brilliant way to demonstrate momentum transfer between objects. The compression of the bigger two balls bounces the smallest ball much higher than it would normally bounce. You’ll need A basketball A tennis ball or small basketball/football Table tennis ball or golf ball Stacked Three Ball Drop Instructions Hold … Continue reading “Stacked Three Ball Drop STEM Challenge”
So far, 2024 has been a brilliant summer of sports, with Euro 2024 and the Paris Olympics. I’ve created a fun sports science quiz to help keep the sporting excitement going! Sports Science Quiz There are four rounds, including a photo round and a True or False section. The quiz is free to download, and … Continue reading “Sport Science Quiz”