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What type of animal brings chocolate presents at Easter time? What force makes your hands when you rub your hands together? Explain how a radiator in a room is able to warm the whole room? Tail bone vestigial fused vertebrae? What fictional detective talked about the little gray cells? Why is the cell membrane said to be a fluid mosaic? What are the physical properties used to describe matter? Why does a sheep scratch himself? What would happen if you put the stem of a white flower in water color red? Using the atomic theory how the carbon dioxide in the breath that you exhale is the same as the carbon dioxide in carbonated drinks? What does clay do in cement mortar? How much in 212 deg f in celsius? 4 kilos equals how many pounds? How does the distance between an object and a convex lens affect the image formed? Why do human cheek cells divide faster than normal cells? What is acetylcholinesterace? Why is Athena smart? Do beavers live in the tropical rainforest? How does a red shift indicate that the universe is expanding? Which of the following changes when an unbalanced force acts on an object?