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Polymerase Chain Reaction (PCR) PCR copies DNA, utilizing repeated cycles of three steps and Taq DNA polymerase, a recombinant, thermostable enzyme from the organism Thermus aquaticus.

Watch as the ball travels through tubes, pipes and chutes. A Tracking Panel on your outdoor preschool playground allows children to observe and demonstrate directional words. They can visually track the object as it goes fast, faster and slower. When children use a variety of objects and compare the speed of travel, they learn about physical properties and cause and effect. The Tracking Panel is also available in cedar for your natural playground.

Homemade Peppermint Cough Drops Recipe

Homemade peppermint cough drops work almost like magic, and they're as easy to make as mixing three ingredients together!

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