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8y1 - Advice leaflet on infectious diseases

Set: Tuesday 27th March
Due: Thursday 29th March

Complete the leaflet started today on infectious diseases. Your leaflet should advise a traveller to remote places about:

• What infectious diseases they may encounter and what the symptoms are
• How the disease is spread
• How they can avoid spreading/catching the disease

There is plenty of information in Exploring Science 8 and on the sheet handed out in class. You could also look at the BBC Bitesize revision guide on Health and Disease and Mayoclinic's guide to infectious diseases.

8x3 - Make a pinhole camera

Set: Wednesday 21st March
Due: Monday 26th March

Make a pinhole camera – see page 131 in Exploring Science.

You will need: a box, tracing paper, sellotape.

You can make a pinhole camera by taking a box and making a small pin hole in the centre of one side. Then, on the opposite, cut a square and cover with tracing paper or thin tissue - see the diagram in Exploring Science to see what you should be making.

By pointing the camera at a bright object, you should be able to see the image on the tissue/tracing paper. It may be easier to see if you put a coat over your head when looking at the camera.

Here's a page telling you how to make a pinhole camera out of a Pringles can.

9x1 - soil pH testing kit instructions

Set: Monday 19th March 07
Due: Wednesday 28th March 07

Create an instruction leaflet such as a manufacturer might include in a commercial soil pH testing kit. Your leaflet should include:

• step-by-step instructions for testing a sample of soil
• a colour chart for determining soil pH
• examples of plants that can be grown in soils of different pH

You could also mention how to adjust the pH of the soil.

Here are some webpages you may find useful, though you should be able to find many others: How to be a gardener from the BBC, Gardening-Advisor.com's guide to soil pH, and Wikipedia's page on soil pH