Tuesday 27 November 2012

fish life cycle

Fish Life Cycles













  • A frog is an amphibian. It starts its life in the water and then moves onto land when it becomes an adult. They also have moist skin. Amphibians lay eggs. The eggs stay in the water and hatch there. The young amphibians live in the water.
  • There are four parts of a frog's life cycle:  Eggs, tadpoles, young frogs, adult frogs.
  • Young frogs are called tadpoles. They look very different from adult frogs. They look more like fish. They breathe with gills. The gills help them get oxygen from the water.
  • As the tadpoles grow they change. They begin to grow lungs that they will need when they are adults. When their lungs are big enough to help them breathe, their gills start to disappear.
  • Tiny bumps appear on their bodies. These bumps grow into short front legs and longer, stronger hind legs. Once their legs are grown their tails begin to disappear. Then they look like adult frogs and are ready to live on land part of the time, but they usually stay close to water even when they are adults.
  • Turtles are reptiles. Most of them live on land and use lungs to breathe air.
  • Many reptiles are hatched from eggs that have been laid on the sand. Turtle eggs have a very tough shell. Once they hatch, they are ready to live on their own. They don't need mothers to take care of them.
  • Math Fun:  A loggerhead turtle lays 108 eggs and they all hatch. Another loggerhead turtle lays 94 eggs and they all hatch. Another loggerhead turtle lays 103 eggs and they all hatch. If the eggs hatch at the same time, how many baby turtles will be crawling to the sea after they hatch
  •  Chickens are birds, so they are hatched from eggs.  They have a special  horn on their beak to help them break the egg, and when they are born they only have fine down and no feathers.  They’re called chicks, and are considered fully adult at 32 weeks of age.  Chickens can live from 5-10 years.
    Craft fun:  Draw an outline of a chicken. Get some colorful feathers (you can buy these at Wal-Mart or craft stores). Glue the feathers onto the chicken. Try to arrange them so that they look real. Glue two pipe cleaners in place as the chicken feet. Put two googly eyes on the chicken's head, and a small piece of construction paper for its beak. You made a chicken!





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