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Sunken Lesson Animals with Backbones

Sunken Lesson Animals with Backbones. Grade 3. Fish. Live in water Most have scales and fins Use their fins to move through the water Use gills to breathe . Amphibians. Hatch from eggs laid in water When young, they look like fish and have gills like fish. They grow legs.

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Sunken Lesson Animals with Backbones

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  1. Sunken LessonAnimals with Backbones Grade 3

  2. Fish • Live in water • Most have scales and fins • Use their fins to move through the water • Use gills to breathe

  3. Amphibians • Hatch from eggs laid in water • When young, they look like fish and have gills like fish. • They grow legs. • Gills are replaced by lungs. • They can live on land when older. • They can stay underwater for a long time. • Frogs, toads, salamanders, and newts are examples.

  4. Reptiles • Have scales • Lay eggs with leathery shells • Most live all their life on land • Lay their eggs on land • Lizards, snakes, turtles, and crocodiles are examples.

  5. Birds • Have wings and beaks • Are the only animals that have feathers • Lay eggs with shells • Use their wings to fly

  6. Mammals • Have fur or hair • Give birth to live babies • Have only a few babies at a time • The female feeds the young milk from her body • The young are taken care of for a long time • Humans, dogs, horses, cows are mammals.

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