Generally the bigger an organism is the smaller its surface area compared to its volume. Surface area to volume ratio is a really important factor in how well an organism can exchange substances with its environment. A large mammal like a human could never absorb enough oxygen to survive through its skin which is why…
Here at Science Sparks, we love anything space related, especially rockets! This baking soda rocket is one of our favourites, as it’s super easy to set up and can be launched over and over again! I also have a water powered bottle rocket, film canister rocket and squeezy bottle rocket you can try too! How…
Inspirational Women in Science History is full of incredible female scientists. Not only have they made groundbreaking discoveries, but they have also had to fight against gender stereotypes, racial discrimination and the social expectations of their time. Can you imagine being told you couldn’t be educated past a certain age because of your gender? Or…
Ice excavations are great fun for kids of all ages. Younger children will enjoy pouring warm water over the ice to rescue small figures, while older children can use the opportunity to set up a science investigation thinking about which variables to change and which to keep constant to make it a fair test. I…
The human body is pretty amazing! We have skin to help protect us from pathogens and pollutants, a skeleton to allow us to move and protect vital organs and a digestive system that can break down food, keeping the good bits and expelling the waste! These fun human body facts are a great starting point…
The Avogadro Constant is used to find the number of particles in a substance. What is the Avogadro Constant? The Avogadro Constant is 6.02 x 1023 What is a mole? One mole of a substance is the amount of the substance that contains 6.02 x 1023 particles. The particles measured can be atoms, molecules, electrons…
Today’s STEM challenge is to design and build a bumper car that will rebound back after a collision with a wall or another mini vehicle. This car themed STEM challenge is a great hands-on introduction to Newton’s Laws of Motion and a fun engineering and design project too. Bumper Car STEM Challenge You’ll need Balloons…
Hopefully you’ve already seen my ever growing collection of FREE science experiment printable instruction sheets. These cover experiments suitable for kids of all ages and are themed to many different topics including seasons and holidays. Launching today are several science experiment templates that can be used for writing up experiments and investigations and a STEM…
All moving objects have momentum. Another way to think about momentum is how hard it is to stop a moving object. It’s harder to stop an object moving quickly than an object moving slowly. What is the momentum equation? All moving objects have momentum. Momentum is a vector quantity which means it has size AND…
Pathogens are organisms that cause disease. Viruses, bacteria, protists and fungi are all pathogens. Pathogens cause communicable diseases. Diseases can be communicable or non-communicable. What is a communicable disease? Communicable diseases spread between people. Non-communicable diseases cannot be spread between people. An example of a non-communicable disease is heart disease. Examples of viral diseases Ebola…
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