Hooke’s law states that the amount of force applied to an elastic object is proportional to how far it stretches. However, if the object is overstretched it will not spring back. Hooke’s Law only applies if an elastic object is not overstretched. Objects are made from lots of molecules with bonds between them, if too…
The food available to animals varies depending on where they live. In habitats where food is limited, animals with features or adaptations that allow them to access food more easily are likely to survive more successfully than those without the advantage. Animals with adaptations that allow them to live longer are more likely to produce…
We’ve just broken up for the Easter holidays and I have big plans for lots of fun Easter Science Experiments while everyone is off school. I’ve put together a collection of old favourites, new ideas from us and some great Easter science activities from other bloggers too. If a STEM Challenge is more your thing,…
This simple investigation is great for learning about stretchy materials. The challenge is to find a material that stretches easily and also returns to its original size. Don’t forget to check out my other ideas for learning about materials and their properties too, including sorting objects from Ariel’s cave, creating a superhero cape and saving…
Sublimation is when a solid becomes a gas without turning into a liquid first. There are three states of matter. Adding or removing energy from a substance can change the state it is in. For example water is a solid below 0oC ( freezing point ), a liquid above 0oC ( melting point ) and…
Toothpick structures are a fantastic, low-cost, and easy STEM challenge that keeps kids busy for hours. We used cocktail sticks, but you could also use straws or spaghetti. I set the children a challenge to build a structure that would hold a chocolate egg off the ground. Toothpick Tower STEM Challenge Toothpick structure materials How…
Transpiration is the loss of water from a plant. Transpiration mainly occurs from the leaves. Water vapour diffuses out of the stomata ( tiny pores mostly found on leaves ). Loss of water from the leaves creates a pull on the water in the xylem cells, drawing water up the plant. This movement of water…
Moonbows ( lunar rainbows ) form in the same way as rainbows, but the light source is the moon rather than directly from the sun. The moon is lit mostly by light from the sun, but also by light from other stars and light reflected from Earth. Rainbows and moonbows form when light is refracted…
Lemons are a small, yellow citrus fruit that taste sour, smell good and can be used for lots of very simple science experiments as they are acidic. I’ve collected 5 of my favourite science experiments using lemons for you to try at home. All are very easy and don’t use many resources other than the…
Where does rain come from? Most rain comes from the sea! Water on land, in lakes and seawater evaporates when it’s heated by the sun to form a gas called water vapour. Water vapour rises and cools back into water droplets forming clouds. When the droplets of water are big enough they fall as rain…
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