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Thursday, June 27, 2019

Hurmanu - Science - Water Cycle

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

Definition:


It's when the sun heats up and evaporates the water from the ocean, the ocean then turns into a gas or water vapour creating clouds - It's the same as plants and it's called transpiration when the plants evaporate, creating a cloud - The process of making clouds is called condensation, precipitation is when it rains.  And the process will then repeat over and over again.




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.

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.  2 ziplock bags bag
  2.  Vivid marker
  3.  A cup of water and soda water (for the second experiment) 
  4.  2 drops of colouring
  5. Litmus paper

Steps:

  1. Get all the materials/equipment you need for this experiment.
  2.  Draw the sea, clouds, sun, and plants and write down the scientific words.
  3.  Pour the water in the ziplock bag carefully, not spilling it and not smudging the drawing.
  4.  Put 2 drops of food colouring in the ziplock bag and mix it in the water carefully, it will look like the ocean, I guess, well it has to look like the ocean 
  5.  Put it up and stick it on a window where the sunlight can come through and watch it evaporate.
For the second experiment, the materials will be the same except, we're using soda water instead of normal water and we're adding litmus paper to it. The steps will be the same but we're putting litmus paper but we're actually not going to put it inside the bag, we are going to clip it where the ziplock is and make sure it's stuck in there

Two or one image(s):



IMG_20190627_130526.jpg

Findings and my predictions about the experiment:

I think that the water inside the ziplock bag will moist - Condensation
I think the water will turn lighter after it moist
The water will lesses since it will moist 

For the second experiment, I think that the ziplock bag will have air forming in it since the bubbles from the soda water is carbon dioxide, it will create air which will expand the plastic bag creating air in it like a balloon. The colour of litmus paper is yellow and when something acidic touches it, it will change the colour to red. 

Conclusion:

The first thing we did was we find out what evaporation, precipitation, transpiration and condensation means, in short, we looked for the definition of those scientific words. We then looked at the process of water cycling. After talking about the water cycle, we proceed on doing an experiment, we have to be in groups of 3 so I grouped up with my friends, We get the materials and do the steps. 
I also know a little bit about the water cycle but now I learned more about it, I learned about the four words, well I know how evaporation works but I learned a little more an about it now. The rest, I know the definition of them now and the process of the water cycle.



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