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Water Purification Challenge

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Water Purification Challenge

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About this activity

Test your knowledge on methods to make water safe to drink.

Created by

Julián alfonso Sánchez quimbaya
Julián alfonso Sánchez quimbaya
Colombia

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Water Purification Challenge
 

Water Purification ChallengeOnline version

Test your knowledge on methods to make water safe to drink.

by Julián alfonso Sánchez quimbaya
1

a water purification method that uses heat to turn water into steam and then back into liquid.

Pistas

I heat the water until it’s steam, Then I cool it — like a dream. What method am I?

I change water from liquid to gas, Then back again — nothing can pass. What do I do?

I remove the salt from the sea, I make it fresh for you and me. What method is this?

2

Everyday Actions

Pistas

I can be found in water purification systems.

You often use me in coffee-making.

I help separate solids from liquids.

3

a method that uses filters and funnels to trap dirt and let clean water through.

Pistas

I let the clean water go through, But trap the particles — that’s what I do. What’s my method?

I work with sand or paper fine, To clean the water every time. What process is this?

I don’t boil, I don’t add drops, I just stop the dirt with my stops.

4

These riddles talk about iodine treatment, a chemical method used to kill bacteria in water.

Pistas

I’m small and strong, just a few drops, I kill bacteria with tiny hops. I come in a bottle, brown and tight, What am I that makes water right?

I don’t filter, I don’t boil, I make sure bacteria spoil. What do I do?

I work in the bottle or cup, I make water safe to gulp. What’s the method?

5

when vapor becomes water again

Pistas

You can see me in the form of dew on grass.

I often occur when warm air cools down.

I am a process that changes gas to liquid.

 
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