5th Grade: This week, we'll be learning about the water cycle. The students have already studied condensation and evaporation, so these concepts should be familiar. We will be reviewing vocabulary and playing a game. There will be no class on Friday due the Halloween celebration. Key questions:
- What is the water cycle? (The global water-recycling system that includes water in all three states - gas, liquid, and solid)
- Where is most of the earth's water? (In the ocean as salt water. Only 1% of the earth's water is fresh and available to us to drink.)
- As a water molecule, where did you "go" in the water cycle game? (Answers were vary - may include ground water, glacier, animal, ocean, clouds, river, lake, etc)
This week, we'll be reviewing the rock cycle (see previous weeks' blog) and learning about the process of weathering by shaking pieces of granite and breaking them down to sand. If we have time, we'll also explore chemical weathering by placing limestone in vinegar. Key questions:
- What is weathering? (The process by which larger rocks are cracked and broken down into smaller pieces).
- What happened to your granite when you shook the jar? (It broke into smaller pieces, so as small as sand.)
- Where can we see weathering in action around us? (Answers may vary - examples include cracked pavement, broken rocks, sand at the beach, etc)
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