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This week's theme was water and air, and we had fun with it. We did all kinds of scientific things. First of all, we learned that scientists call water H₂O. Next, we learned that water can be found in 3 forms...a solid (ice), a liquid (We called that drippy water.), and a gas (clouds). Then we did all sorts of experiments to find out what sinks and floats in water, that air is lighter than water (that's why bubbles always go up), water has surface tension, water magnifies things, that water level goes up when you put things into it, water evaporates, and water condenses. We call this the water cycle.

Below are pictures of some of our experiments. Because scientists always make a hypothesis before their experiments (and we are scientists!), we made a lot of hypotheses. Some are included below. We celebrated if we were correct and if we weren't, we learned to say, "I learned something today".
What will happen to the water in the jar with the lid? Some of our hypotheses… The liquid will stay the same. It can't go through the water cycle The water level might go down. What will happen to the water in the jar with no lid? Some of our hypotheses… The water will evaporate. The water will get deeper. The water will get more shallow. It will rain in our room. It won't evaporate. We can't have real clouds in our room.	You can see the line on the left jar that marked our water level on Monday. As you can see, it has dropped a little. We are going to keep our experiment going for a couple of weeks to see if the results change.
	Here's a picture of condensation. We boiled water in a tea kettle and caught the steam in a jar. As it cooled, it turned from a gas to a liquid.
We experimented with different items to see whether they would sink or float in water.	Can you guess which group sunk and which group floated?
We put drops of water on different coins. First, we predicted how many drops would fit on a penny. Here are our predictions. The penny actually held 33 drops of water!!	Do you see the bubble of water on the penny? Scientists call this surface tension...we just called it water with 'skin' holding it together!
We discovered that water magnifies things when you look through it.	We made ice cubes in 3 different sizes and shapes. Then we predicted which would melt the quickest. We had a little problem, however. When we returned from library, they had all melted except one little piece of #2! We tried again on Thursday. We found that the shallow/wide ice cube (#1) melted the quickest.