Imagine pulling a delicious cake out of an oven. The smell slowly spreads around the room and then through the house. This is diffusion! The lovely cake smelling particles move from where there are lots of them ( high concentration ) to where there are less of them ( low concentration ). Diffusion can be…
There are three main types of rocks: sedimentary, metamorphic and igneous. Each are formed in a different ways. Sedimentary rocks contain rounded grains in layers. Chalk, shale and limestone are examples of sedimentary rocks. This activity is a very simple demonstration of how how sedimentary rocks are formed. Sedimentary rocks are formed when layers of…
Have you ever wanted to create your very own rock lab? These rock investigations include five easy tests to help children group and identify rocks based on their appearance and properties. It’s a brilliant first introduction to rocks for kids, with lots of fun rock activities for kids of all ages. There’s also a free downloadable…
Green plants make sugar for growth by a process called photosynthesis. Photosynthesis is a process where light energy is converted to chemical energy in the form of sugars. Photosynthesis provides the main source of oxygen in the atmosphere and is essential for almost all life on Earth. Photosynthesis made simple Plants use sunlight, water, and…
This light refraction experiment might be one of the most simple to set up science experiments we’ve ever tried. It is a bit tricky to explain, but impressive even if you can’t quite get your head around it! If you like this activity don’t forget to check out out our other easy science experiments for…
I can’t really take the credit for these awesome animal cell models as it was my son’s science homework earlier in the year, but he did such a good job I wanted to share on here. His first thought was to make a spherical cake model, which I thought sounded a bit tricky, so we…
I still remember learning about osmosis at school many years ago. I don’t know why that particular memory has stayed with me so strongly, maybe because it was hard to understand. Whatever the reason, osmosis is a term I’ve never forgotten the meaning of. Definition of Osmosis Osmosis is the net movement of water molecules…
Making pH test strips is surprisingly easy and I was very impressed with how well they worked. These are a lovely alternative or additional activity to making red cabbage indicator solution and fantastic for learning about the pH scale. How to make pH indicator paper You’ll need Red Cabbage Indicator – made by boiling chopped red…
This investigation to find out how exercise affects heart rate is a great way to introduce correct scientific procedures and think about variables that can change and those that need to remain constant. Exercise increases the rate at which energy is needed from food, increasing the body’s need for both nutrients and oxygen. This is why…
This fun superhero themed science activity is great for learning about density and magnetism. We’re going to show how if you squeeze a plastic bottle full of water a Lego man that previously floated will sink, then we’re going to trap him at the bottom using a magnet and paperclips. What is a cartesian diver? This…
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