Hurumanu - 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

Two Images:

• I noticed that there are a few drops of water.
• There isn't much water cycle happening?

• I noticed that the bag is acidic.
• The colour of the litmus paper has changed.

Findings:

	The Water Cycle: Bag 1	CO2 Water Cycle: Bag 2 Acid	Desert Water Cycle Bag 3
Does it cycle?	2	2	no
Amount of Water	2	2	no
Acidity	1	3	no

Key: Water and acidity amount: 1 = none 

2 = small 

3 = large 

Conclusion: The first one we did had only a few drops of water, but no acid. The second one had a lot of drops of water, but a lot of acidities, the water drops were scattered all over, unlike the first one.