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So far Tech has created 32 blog entries.

The exploding lunch bag!

Background: A neutralisation reaction takes place inside the bag. The baking powder and the vinegar eventually mix (using a tissue gives you a little bit of time to zip the bag shut). When they do mix you get an acid-base reaction and the two chemicals react together the general equation for this is: Acid + Metal Carbonate Salt + Water [...]

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Word Search – General

Click or touch on a letter and drag to the last letter of the word. If you cannot find a word, click or touch on that word in the word list and it will be highlighted in the search grid.

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Making Ice Cream

Background: Ice has to absorb energy to melt. When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the bag of ice!). When you add salt to the ice, it lowers the freezing point of [...]

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Growing crystals

Background: Crystals are some of the most beautiful naturally occurring objects. A quartz crystal looks as if the edges have been carved but when you look at them in more detail you may be able to see growth lines covering the faces. These lines show that the crystal has been formed by the growth of [...]

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Holly Chrishop

Project manager Catalent Pharma solutions. I first became interested in science from an early age; I loved understanding how things worked and the technical terms for things around me. It probably wasn’t until high school that I fully understood the variety of topics science applies to. Science was taught in various different ways such [...]

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March – News Letter

Learn Chemistry Cowley, Woodchurch, Bebington and West Derby have all registered with the RSC’s Learn Chemistry, providing open-access educational resources for both students and teachers. Chemistry in your shopping basket Chemistry in your shopping basket has now taken place at all of our partner schools. Pupils have told us they loved doing experiments and practical [...]

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Bubble Trouble

Background: Bubbles form because of a combination of water’s hydrogen bonds** and the oily film you can see shimmer in the light. The oily film you see is actually two separate layers of soap attached to, and surrounding, hydrogen-bonded water. Adding sugar works with the soap to create an extra strong bubble. When you’re blowing a bubble inside [...]

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This week’s key element is OXYGEN

Background Information Oxygen is a diatomic molecule, meaning that two atoms of oxygen combine to form the element in its natural state. Oxygen is extremely reactive and reacts with most other elements to form oxides. Oxygen’s existence has been predicted and experimented with for thousands of years. It is always been clear that there [...]

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This week’s key element is NITROGEN

Background Information Nitrogen was discovered by Daniel Rutherford in 1772 and named by Jean-Antoine Chaptal in 1790. At room temperature, nitrogen is a gas and is odourless and colourless. It makes up around 78% of the Earth’s atmosphere and is estimated to be the 7th most common element in the entire universe. How is it [...]

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This week’s key element is CARBON

Background Information The English name carbon comes from the Latin carbo for coal and charcoal. Carbon was discovered in prehistory and was known in the forms of soot and charcoal to the earliest human civilizations. Diamonds were known as early as 2500 BCE in China, while carbon in the form of charcoal was made around [...]

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