Page 60 - Lavender-B-4

Fun time cross-curricular EVS experiential learning

Let’s learn to make our own water filter.

Materials required:

• a plastic bottle

• pair of scissors

• a clean cotton cloth

• sand

• gravel (fine and coarse)

How to make it?

• Use a pair of scissors* to cut off the bottom of the water bottle. 4

• Punch a small hole in the bottle cap with a pair of scissors.

• Stuff the bottom of the bottle with a cotton cloth.

• Pour fine sand into the bottle till the 1/4 mark.

• Fill the bottle with fine gravel till the 1/2 mark, followed by coarse gravel till the
3/4 mark.

• Pour water slowly from the top. You will find clean water dripping down from the

bottom.

Note: Boil the water before drinking it in order to kill harmful germs.

* to be done under the supervision of parents

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