Tuesday, October 4, 2011
Four Winds Science!
We had our first four winds science lesson today taught by 3 fabulous parents (Mrs. Jensen, Mr. Thompson and Mrs. Rappold). The topic this month was on leaf-eaters. There are two main ways hungry leaf-eaters feed on leaves. Insect with sucking mouthparts, pierce the leaf and simply sip out the plant juices, leaving behind discolored patches where they fed. Critters with chewing mouthparts feed on leaf tissue in a variety of ways. They can leave scattered holes, feed along the leaf edges, or just eat the soft tissue between the veins, revealing a leaf skeleton. Some are even called leaf miners for they only eat the tissue between the top and bottom surface of the leaf. Their feeding can look like pale windows or tunnels that snake across the leaf like roads on a map. Leaves can also be rolled, folded or covered in silk to create a shelter or safe dining spot. Thank you to our parent volunteers for such a great lesson!
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