Comprehension STOP Use your dictionary to find out the meaning of the bold words below. Make Your Own Wormery


!


Equipment: ƒ Old newspaper


Aim: Aim: To make a habitat for earthworms. Diagram:


Earthworms


ƒ A large glass jar or clear plastic bottle with a lid


ƒ Gravel or small stones ƒ Moist soil ƒ Light-coloured sand ƒ A trowel ƒ Earthworms ƒ Grass and old leaves


ƒ Scraps of fruit and vegetables and tea leaves


Fruit and vegetable scraps and tea leaves


Sand Soil Gravel Lid with holes


Method: 1. Cover your work surface with old newspaper. 2. Wash and dry the jar (or bottle). 3. Add gravel to the bottom of the jar.


4. Place a deep layer of moist soil, followed by a layer of sand in the jar.


Soil Trowel Grass and leaves Soil Sand


Top tip!


5. Continue layering the soil and sand like this until there is a space of about 5 cm at the top and ensuring that the final layer is soil.


6. Use a trowel to gently dig for earthworms in your garden. 7. Carefully place the earthworms in the wormery.


8. Cover the earthworms with the old leaves, grass, scraps of fruit and vegetables and tea leaves.


9. Ask an adult to make some holes in the lid using a sharp knife. Screw the lid on. A lid can also be made by securing cloth over the jar with an elastic band.


10. Leave the wormery in a cool dark place, out of direct sunlight, for a week or two.


11. Take out your wormery and observe. Conclusions:


1. The grass and leaves should have been pulled down into the soil.


2. The sand and soil should now be mixed together. 86


The wormery demonstrates what happens in the garden. Earthworms help to transport decaying plant material into the soil. This gets broken


down, making the soil fertile and providing nutrients to help plants to grow.


Worms are omnivores, which means they eat all food types. You shouldn’t put meat or fish in your wormery though.


Unit 15 | Procedure 2


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