CHANGES OF STATE IN WATER

Hello kids!!!

Here I am again. This time we are going to work a little bit in Natural Science. 

Now that we know that matter is everything around us that has volume and mass, we are going to study water a little bit more. Apart from its importance to life, water can be in the three states: solid, liquid and gas. And when it changes from one state to another due to temperature the process has different names: melting, freezing, evaporation and condensation...

In this occassion, I'd like you to watch this video and do an experiment.

First, watch this video where you can also remember the Water Cycle.

Did you like it? I hope so. Now let's see the experiment:

First, put two ice cubes on a plate and place on a radiator or a sunny place. Look at the time and write down on your notebook what you did and the time you began.

Second, wait for the ice cubes to change the state. Write down how long it took the ice cubes to become liquid and write the name of this change of state.

Third, add some salt to the water in the plate, stir it a bit and place it again on the radiator or the sunny place. Write down the time

Fourth, write down what you observe next, it may take some time. Now, answer to these questions: 

a) What happened to the water in the plate?

b) Was there anything left in the plate? What was it?

c) How do we call this change of state? 

d) Where is the water now?

You can use drawings or take pictures of your experiment and include them in your notebook.