The Water Cycle in a bag ʕ •㉨• ʔ

AIM: TO LEARN ABOUT WATER ON EARTH.

Definition:

Scientific words:

• Evaporation. When water is heated by radiant energy it turns into water vapor.
• Transpiration. Evaporation from plants.
• Condensation. When water vapor cools, molecules join together and form clouds.
• Precipitation. When clouds get heavy the waters falls as rain, sleet, hail, or snow.
• Acidification: the action or process of making or becoming acidic.

THE WATER CYCLE SONG

THE WATER CYCLE EXPERIMENT

Bag 1: Normal Water cycle

Bag 2: Water cycle with CO2 added: like Oceans in climate change

Material:

• 2 x A4 clear zip-lock bags.
• 100m of water.
• 1 x vivid.
• Blue food colouring.
• 100m of soda water.
• 1 x Litmus paper.
• 1 x teaspoon of Baking Soda
• 2 x stripes of double-sided tape.

Steps:

1. Gather the materials listed above.
2. Using your vivid draw a picture of the water cycle on the bag.
3. Add the labels of what the parts of the water cycle are.
4. Add 100m of water to the bag.
5. Add 2 drops of blue food colouring to the water.
6. Zip up the bag.
7. Tape the bag to a window using double-sided tape.
8. Get your other bag.
9. Repeat the drawing steps onbag two.
10. Add 100m of soda water.
11. Add one teaspoon of baking soda.
12. Zip up the bag but leaving a small gap.
13. Put one strip of litmus paper in leaving it half in the bag and half out.
14. Make sure the zip lock is closed and securing the paper.
15. Tape the bag to the window next to bag one using double-sided tape.
16. Wait for a few days to weeks.
17. Watch as the condensation builds up.

Findings:

	The Water Cycle	Acid Water Cycle
Does it cycle?	Yes	Yes
Amount of Water	1	1
Acidity	0	1

Key: Water and acidity amount: 0 = none 

43

1 = small 

2 = large 

Conclusion:

If you follow these steps you will be able to do the experiment successfully and replicate the water cycle process in controlled conditions