Water Cycle.

AIM: TO LEARN ABOUT WATER ON EARTH.

Definition:

Scientific words:

• Evaporation. When water is heated by radiant energy it turns into water vapour.
• Transpiration. Evaporation from plants.
• Condensation. When water vapour 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

Bag 3: Water cycle with ice added: like Antarctica in climate change

Title: Water Cycle Experiment 

Purpose: To learn how the water cycle works and to learn the impact of pollution in our water. 

Materials:

• 2 ziplock bags,(A4 sized)
• 200ml of water
• Soda water - 50ml
• Litmus paper 
• Vivid Marker
• Baking Soda 
• Blue Food colouring 
•   tape

Procedures:

Experiment A

1. Get a vivid marker and draw land with mountains and clouds.
2. Name each step of the water cycle.
3. Then add some water.
4. Then add some blue food colouring.
5. Put 20cm of double-sided tape.
6. Take off the side of the tape and set it inside a window facing the outside.
7. There you have the water cycle.

Experiment B

1. Get a vivid marker and draw land with mountains and clouds.
2. Name each step of the water cycle.
3. Add some soda water - 50ml.
4. Add some baking soda, 1 teaspoon.
5. Then add some blue food colouring
6. At the middle of your ziplock, it locks put a strip of litmus paper in the middle and zip.
7. Put 20cm of double-sided tape.
8. Take off the side of the tape and set it inside a window facing the outside.
9. There you have a water cycle with CO2 added. (Carbon Dioxide)

Conclusion:

This experiment tells us more about the water cycle and how it works. In the experiment it showed us how the water cycle would normally work, while the other one showed us more about when CO2 is added to the water. 

Findings:

	The Water Cycle	Acid Water Cycle
Does it cycle?	1	1
Amount of Water	2	1
Acidity	0	1

Key: Water and acidity amount: 0 = none 

1 = small 

2 = large 

Other comments:

The water cycle did cycle, it has a large amount of water and there is no acidity in the water cycle because there is no added CO2. The acid water cycle did cycle, it has a small amount of water and it has small acidity. 

Conclusion: