Hurumanu: The Water Cycle

AIM: TO LOOK AT THE WATER CYCLE AND HOW CLIMATE CHANGE IS AFFECTING IT.

Definition:

Water circulates between our earth's oceans, atmosphere and land. Involving precipitation such as rain and snow, drainage in streams and rivers return to the atmosphere by evaporation and transpiration.

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.

We will be conducting an experiment that looks at the different ways that climate change is affecting the water cycle.

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

Material:

1.  Plastic bag
2.  Vivid maker 
3.  One cup water
4.  Two drop of food colouring
5. litmus paper 
6. soda 

Steps:

1. Get into a group
2. Get the material 
3. draw the water cycle on a zip lock bag 
4.  put a cup of water in the zip lock bag
5. put two drops of blue food colouring 

Two Images:

Findings:

Conclusion: I well have more of a conclusion next week. What I know about the water cycle is that the water  from the sea evaporates because of the sun and goes to the clouds then goes back in the sea by the rain

For the second bag we used soda water to show what is happening to our ocean because of climate change. We used soda water because the gas in soda water is carbon dioxide.