Written by 
Today, we had a lot of fun making Halloween versions of our basic optical illusion. What do you think of our pumpkin? Just roll the pencil or straw between your hands to see the face appear in the pumpkin. The best thing about this activity is that you can be as creative as you like. Make […]
Animal and plant cells have three main differences. They both have a nucleus, cytoplasm and cell membrane, but only plant cells have a cell wall, vacuole and chloroplasts. We used jelly to create an easy plant cell model showing the main features of a plant cell. See our animal cell model post for more about […]
Biology is the study of life and living things, including plants, animals and microorganisms. Biologists refer to living things as organisms. This collection of biology experiments for kids covers some of the most important concepts in biology There are many different branches of biology, including: Ecology – the relationships between organisms Zoology – the study […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]