Tuesday, March 2, 2010
Comparing Soils
We are learning all about the earth's crust in Science this week. We have talked about natural resources and how we use the earth's resources in our lives. We also talked about different types of soils. After discussing sand, loam, and clay; we got a chance to obeserve these types of soils using our sense of sight, hearing, touch, and smelling. We poured the soils on plates and used a magnifying glass to get a closer look at the soils. We also added water to each soil to see what would happen. Here is what we found out: Sand is kind of gritty, beige or tan colored, it holds a lot of water, and the grains slip through your fingers. Loam is black, made of lots of grains, and is good for planting. Clay is reddish brown, feels smooth, does not hold water, and would not be good for planting things. This week we are going to observe rocks. We are also going to learn about weathering and erosion. Science has been exciting this week!!
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Awesome idea! I will follow all of your progress! Mrs. Cook, Brandon Cook's mom.
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