Water Friendship

So the first thing we learned was about water and how it gets along...  


There is:


High Specific Heat: water has a very "high specific heat," meaning that water can absorb a large amount of heat energy without changing temperature (we put blown-up balloons above a lighted candle, and the balloons with the most water in them popped last). This keeps the "water-holders" (i.e. humans, the water and balloons)


-this is what prevent us from "popping" when we go outside and its REALLY hot...


Capillary action, where Hydrogen (H) bonds stick to a surface, called adhesion; then you have is where H bonds stick to each other, which is called cohesion. 
*Note: A good comparison is when you hold on to your friends (like the hydrogen bonds sticking together), but then your friend got caught on a car (bare with me) so your friend keeps holding on to you as you two get moved by the car. 


-this is what trees use to get water to their leaves.


Hot & Cool: basically, hot water is less dense than cold water (hot air rises...). So, hot water goes above cold water when they are mixed together (we figured this out when we flipped a beaker with green warm water onto a beaker with yellow cold water. Then we did it vice versa, and the green warm water went to the top, if that makes sense...)

-this, in short, makes the currents. (The water at the equator is being heated up, and the water then moves, leaving more cold water to be heated up and then to be moved. Meanwhile, the warm water has cooled down (once away from the equator) and comes back to the equator. This makes a cycle, or a current)


Salt vs. Fresh: here, we learned that salt water is more dense than freshwater, since adding salt to water gives more density to the water (obviously). We figured this out the same way we did with the "hot & cool" experiment (by flipping beakers with different types of water in them).