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Healthy skin

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Activity overview

15 mins
Ages 5 – 7

Science topics:

Plants

Take a much closer look at this familiar object. Can your class use their reasoning skills to work out what it is?

Run the activity

You will be zooming in and out of the image above – starting very close and stepping back slowly.

1. Start by asking everyone:

  • What do they think the image is and why?
  • What does the image remind them of and why?

2. Every time you zoom out, ask the class:

  • Can they describe the colours, shapes and textures?
  • What do they think the image is now – have they changed their minds?

Background science

The sweet orange is a citrus fruit which originated in China. It the most cultivated fruit tree in the world. They are grown in tropical and subtropical climates.

The orange is an evergreen flowering tree with oval green leaves. The white bitter pith is porous but the rind has lots of tiny pockets of air. Each orange segment is a carpel defined by membranes that provide fibre and are filled with juice rich in vitamin C, both essential for a healthy diet.

Common varieties include navel oranges, Valencia and blood oranges. The darker coloured rind of the blood orange is due to high concentrations of pigment.

The taste of oranges comes from the combination of sugars and acids. Tastes improve in later harvests because there is a higher ratio of sugars to acids, resulting in less bitterness.

Take it further

Let children explore other types of citrus fruit such as lemons, limes and grapefruit. How many ways can they find to sort and group them? As well as looking at different features, why not measure them and investigate whether they float or roll. If the skin is removed, do the fruits float or sink?

Look more closely at another favourite fruit with this Odd One Out, Types of apple.

Image credtis:

Orange by Catrin Austin via Flickr CC BY 2.0

Orange Fruit Tree Citrus by Hans via Pixabay CC0

Orange Fruit Tree by Hans via Pixabay CC0