Teacher Blogger

Have  you ever noticed , especially when you  are  in a moving car, that the moon seems  to follow you? The moon is so distant compared to earthly objects around you. It appears to follow along on your journey. When we move in a car, our brains automatically compare the distant moon and stars to the part of the  view that is nearest to us,  sweeping past. Meanwhile, because the moon and stars are so far away, they seem to stay in one spot. And it can seem like  these objects in space are moving right along with you. When the car moves 200 feet forward, the  relative angle between the direction of motion and the moon   remains  the same, The distance between you and the moon is about a quarter million miles. Any distance you travel by car on Earth is small in comparison. So, when  you move in a car, no   matter which angle you  view the moon from , it appears  to remain in the same place,  following you ! A  harvest moon [6]   This illusion is due to:   The moon is so far away from Eart

Seashell A seashell is a protective outer layer usually created by an animal or organism that lives in the sea. They use mollusks to make shells to protect their soft insides. [14] You can see empty seashells washed up on beaches by beachcombers. The shells are empty because the animal has died, and the soft parts have decomposed or eaten by another organism. A seashell is usually the exoskeleton of an invertebrate (an animal without a backbone) and is typically composed of calcium carbonate[14] or chitin. Most shells on beaches are the shells of marine mollusks, made of calcium carbonate, and endure better than shells made of chitin. Apart from mollusk shells, other shells on beaches are those of barnacles, horseshoe crabs, and brachiopods. Marine annelid worms in the family Serpulidae create shells made of calcium carbonate cemented onto other surfaces. The shells of sea urchins are called tests, and the molted shells of crabs and lobsters are exuviae. While most seashells are extern