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…
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…
If you’re thinking of trying a science activity at home for the first time, or are a more seasoned kitchen scientist, red cabbage indicator is perfect! The humble red cabbage is great for making colour changing potions, testing the pH of different things around the kitchen and generally a great introduction to science at home,…
The kitchen is a great place to try some science! Kitchen chemistry experiments are some of the easiest and most fascinating activities you can try at home. They also use products you probably already have and sometimes you can even eat the result! Kitchen Chemistry Experiments Chill with Salt Use the ice and salt to…
Chemistry is the study of matter. Matter is basically anything that occupies space and has mass! We use chemistry everyday and everywhere. When you bake a cake the ingredients are chosen, measured and then cooked so they react together to create something tasty (or not, depending on how you combine ingredients and cook them )….
An acid is a substance with a PH of less than 7. The pH scale measures how acidic or alkaline a substance is. A neutral substance such as pure water has a pH of 7! Acids form H+ ions in water. The higher the concentration of H+ ions, the more acidic the solution is. Examples…
Batteries are used to power toys, torches and other items that need energy to work. Batteries store energy as chemical energy which is converted into electrical energy when the battery is part of a circuit. When a battery is placed inside a circuit it pushes charge around the circuit. This pushing force is called voltage….
Next time you boil up some red cabbage, make sure you save the liquid as it can be used for lots of easy science experiments. This red cabbage breath test is a fun twist on the more traditional testing the pH of different substances, although why not do both? Did you know you can even…
Isotopes are different forms of the same element. Isotopes of an element have the same number of protons and electrons but a different number of neutrons. This means they have the same atomic number ( number of protons ) but a different mass number ( number of protons and neutrons ). Paper Plate Isotope Models…
An element is a substance that cannot be broken down into another substance. Each element is made up of its own type of atom! The periodic table lists elements in order of atomic number and is laid out so elements with similar chemical properties form columns ( groups ). Atomic number is the number of…
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