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Acid and Base Rainbows

In this online resource, students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.

This web page concentrates on why it is important for engineers to understand acids and bases.

Because this was designed for younger-year levels, the language is appropriate for those struggling with literacy.

Worksheets and possible extension activities are also available.

20/20 vision

This online resource teaches students about their eyesight.

The resource deals with how a person's eyesight is measured and the technologies involved.

Students also determine how good their own eyesight is and then calculate the average eyesight value for the class.

They also learn about technologies to enhance eyesight and how engineers play an important role in the development of these technologies.

Radioactive Decay: a sweet simulation of a half-life

This online resource looks into the concept of radioactive decay.

The resource is a lesson that uses M&Ms or Skittles as a model to examine the rate of decay of unstable nuclei.

The lesson allows students to grasp the concept that the exact time a certain nuclei will decay cannot be predicted. A printable worksheet is linked to from the web page.

Students will need to be reminded not to eat in a school science lab. Alternatively, a classroom or café could be used for this activity.

Frosty the snowman meets his demise – an analogy for carbon dating

This online resource is a lesson that uses ice melting as an analogy for the radioactive decay.

Presented as a who-dun-it, students need to determine the rate Frosty the Snowman melts and backdate this to determine at what time Frosty started defrosting.

This activity is then compared to the technique of carbon dating, where the levels of radioactive carbon in fossil samples are used to determine the date that the organism died.

The chemistry of haircare

This online resource is a Science Netlink lesson that involves students doing hands-on activities that explain the role of pH in haircare and how better haircare products can be developed.

Background information suggests some of the motivations for students and provide links to supporting animations.

Worksheets and videos are also provided, as are possible assessment tools.

Science Netlink - Earthquakes lesson plans

This online resource details a series of activities that examine how earthquakes are recorded and gives explanations as to why they occur.

These Science Netlink lessons also provide background information as well as suggested motivations for students.

Links to animations, worksheets and videos are provided, as are possible assessment tools.

Activities for radiation risks and uses

This online resource looks at the uses of radiation and the risks involved.

The resource has details on a series of 18 student activities covering: students' prior knowledge, the risks radiation poses, radiation and mobile phones, half-lives, Chernobyl, and radioactive decay.

This web page is provided by the Nuffield Foundation and includes worksheets and teacher notes.

The dark world of fungi

This online resource could be used as an introduction to fungi.

The resource is a 5-minute video that teaches students about fungi and how their physical characteristics are related to the conditions of the environment.

The video addresses whether or not mushrooms are a plant, and discusses how mushrooms are classified. It also provides information on the types of mushrooms and moulds, how they reproduce, and how they are grown. It explains how mushrooms and moulds are used in society for food and medicine.

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