All Observing and measuring articles – Page 4
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IdeasBack to basics with spectrophotometry
How to demonstrate the Beer–Lambert law using your smartphone as a light meter
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Resource
Smartphone spectroscopy: Beer–Lambert law
Use your smartphone to measure changes in concentration across different concentrations of squash at home or in the classroom. Use your results to predict the concentration of an unknown dilution of squash.
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Experiment
Investigating surface tension with milk
Using simple household equipment, you can explore surface tension with learners, and create amazing patterns in milk. Includes kit list and safety instructions.
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Practical
Thin layer chromatography – practical videos | 16–18 students
Learn how to identify unknown compounds, visualise the components and analyse the purity of product using thin layer chromatography (TLC).
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Experiment
Kitchen roll chromatography
Coloured inks can be a mix of a few different colours, and with chromatography, learners can actually see which colours come together to make that coloured ink. This experiment includes a kit list, and safety instructions.
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Experiment
How to make butter
Make science delicious with this experiment on how to make butter! Explore how fat molecules bind, and emulsions are created.
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Experiment
Making bath bombs
Learn how to make fizzing bath bombs using ingredients from your kitchen cupboards. Includes a video aimed at learners, kit list, instructions and explanation
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Experiment
Red cabbage rainbows
In this activity, learners create rainbows using homemade red cabbage indicator paper. Includes video aimed at learners, kit list, instruction and explanation
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Resource
Putting fires out
How can we use vinegar and sodium bicarbonate to make a fire extinguisher?
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Resource
The science of ice cream
Videos discussing the science of ice cream with, celebrity chef, Heston Blumenthal.
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Resource
Should beans be cooked with the lid on or off?
An investigation into whether having the lid on or off affects the colour of green vegetables.
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Experiment
A Cartesian diver
An old favourite experiment, the Cartesian diver is easy for students to complete. Explore important ideas that build a foundation of knowledge.
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Resource
Separating mixtures | Primary science video demonstrations
Fun demonstrations of different mixtures, including racing liquids and rainbow colours.
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Resource
Solids | Primary science video demonstrations
Display some exciting solid properties to primary learners: including biscuit bashing, dissolving and heavy sugar.
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Resource
Gases | Primary science video demonstrations
Showing the properties of gases to primary learners, with examples from: the leaky bottle and the sticky cups
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Resource
Liquids | Primary science video demonstrations
Demonstrate the properties of liquids to primary learners, including: suspended ice, heavy sugar and the particle disco.
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Resource
Changing materials | Primary science video demonstrations
Material changes are demonstrated using fun examples: bouncy custard, bath bombs, burning candles, fire extinguishers, lava lamps and many more.
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Resource
Bendy bones
What makes bones strong? Children can learn about the role that calcium plays in skeletons
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Resource
Sunscreen and UV light
A fun demo to teach about UV light and the action/importance of sunscreen
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Resource
Tooth furry: edible experiments
What causes that ‘furry’ teeth feeling when eating spinach? Discover the importance of chemistry in everyday eating experiences with this edible experiment.
