Animals Grow and Change
What do animals need to live and grow? Fresh air Food Water Shelter
Animals are separated into groups so they are easier to study Animals are separated into groups so they are easier to study. Can you put these animals in groups?
Animals with Bones Mammals Reptiles Amphibians Fish Birds
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 People, dogs, horses, cows are mammals.
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Reptiles Have scales Skin is rough and dry Lay eggs with leathery shells Most live all their life on land Lay their eggs on land Lizards, snakes, turtles, and alligators are examples.
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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
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Fish Live in water Most have scales and fins Use their fins to move through the water Use gills to breathe Some live in fresh water, others live in salt water
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Birds Have wings and beaks Are the only animals that have feathers Lay eggs with shells Use their wings to fly
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Animals without Bones Insects Worms Snails Starfish
Insects Have 3 body parts Have 6 legs Many have 2 or 4 wings Have 2 antennas
Is a spider an insect?
Spiders are not insects. Spiders only have two body parts. Spiders have 8 legs.
What Is a Life Cycle? A life cycle is the stages that occur in a plant or animals lifetime. A life cycle is a circle that has no end, one life ends and one always begins.
Life Cycle of a Frog
Life Cycle of a Butterfly egg Life Cycle of a Butterfly Larva (caterpillar) Adult butterfly Pupa (chrysalis)
Life Cycle of a Mealworm egg Life Cycle of a Mealworm beetle larva pupa
Congratulations! You are an expert on animals and their life cycles.
Resources http://images.search.yahoo.com http://office.microsoft.com/clipart This presentation was created by Denise Carroll