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December 8, 2020 | Sam Martino
Worms have arrived in the third grade.
Earlier this week each class was given a a dozen worms to keep in the classroom. Students were exciting to get an up close look at them.
Before they arrived, the worm habitat needed to be prepared. Each class filled 1 quart tubes with alternating layers of soil and sand. Students remarked how the soil used was a “loam” soil. Loam soil has the best mixture of pebbles, sand, clay, silt, and most importantly organic matter.
Students have been learning how earthworms eat up a little bit of soil at a time and make castings. These casting help loosen up soil as well as distribute valuable nutrients for plants. Students also learned that worms create tunnels as they burrow that make pathways for plant roots.
On the first day students got to get up close with the worms. Students were giving the option to grab their own worm or to have a teacher pick one out for them (some teachers used tongs). When observing worms, students looked for a front end, a back end, and the worm’s many body segments.
After a short time observing worms on trays, it was time to put the worms in their habit. Each tube is home to three worms. Over the coming days we will observe the tubes to see what the worms do and what happens to the soil. Already classes have noticed that the worms are creating tunnels and mixing up the soil and sand.