Water & Food: How Plants Eat and Drink

Plants need water. Water in the cells helps plants to grow and make food, makes leaves and stems firm (a plant that needs watering wilts), and carries minerals from the soil. Plants also need food. As plants cannot eat in the same way as animals, plants have to create sugars, …

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How Strong is an Eggshell?

Eggshells are fragile. Everyone knows that. Drop an egg on the floor, or knock it against a sharp edge (like a frying pan) and that is it – eggshell, white and yolk everywhere. But how can an eggshell possible protect a growing chick? Why do Eggshells Need to be Strong? …

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Do Plants Breathe?

Do plants breathe? Yes and no… Breathing and respiring are two different things. Mammals, including humans, breathe by using muscles to pull air into the lungs and push it out, which brings oxygen to the blood and gets rid of carbon dioxide. The blood takes the breathed-in oxygen round the …

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Map Your Sense of Touch

The body’s sense of touch is a combination of pressure, pain and temperature. Different parts of the body have different numbers of nerve endings, because it’s more important to be able to detect objects and their temperature using touch on fingertips, lips or tongue rather than the back of the …

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Keep an Ant Colony (Formicarium)

Ants are insects and are from the order Hymenoptera, the same order as wasps and bees. They were first seen about 110 to 130 million years ago. Ants are 0.75 to 52 mm long, and are usually black or red, with a few species that are green. Ants make up …

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Make Yoghurt and Grow Yeast

When people think about bacteria and fungi, they usually think of not being well or food going sour or mouldy, but actually bacteria and fungi are essential for foods we eat every day. Making Yoghurt Yoghurt (also spelled yogurt) is fermented milk. The milk is mixed with a starter containing …

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Grow Apples or Tomatoes in Bottles

‘Impossible bottles’ are bottles containing things that appear too big to have been put in through the neck of the bottle, such as ships, decks of cards, or whole fruit (some liqueurs come in bottles with whole fruit in them). Things like ships are actually put into the bottle in …

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Watching Minibeasts

Minibeasts are small invertebrates and include arthropods such as spiders, insects, woodlice, centipedes and millipedes, as well as slugs and snails and worms. Invertebrates are animals without backbones, which means that they are either soft bodied, like slugs, snails and worms, or have a hard outer skeleton like insects and …

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Finding and Watching Mites

Mites are small invertebrates from the group Arachnida, the same group as spiders. Many people are not aware of the mites around them, as most mites are microscopic. Mites as Pests Mites live all around the world, and many are pests, such as red spider mites, which attack plants, and …

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Finding Flowers and Trees

Many people feel that they have to travel to the countryside to see flowers and trees, but according to a study in Germany in 2008, there are more different species of plants found in towns and cities than in the countryside. One thing to remember, in both the town and …

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