Life Cycles Fourth Grade
What are the stages of the life cycle of a grashopper? • Egg • Nymph • Adult
What are the stages of a frog’s life cycle? • Egg • Tadpole • Tadpole with legs • Young frog with tail • Adult frog
What are the stages of a butterfly’s life cycle? • Egg • Larva (caterpillar) • Pupa (chrysallis) • adult
What are the stages of a beetle’s life cycle? • Egg • Larva • Pupa • Adult beetle
What are the stages of a bean plant’s life cycle? • Seed • Seedling • Young plant • Flowers grow and develop • Fruit (beans form) • Beans mature
What does metamorphosis mean? • When an animal goes through many changes during its life cycle changing forms many times. • a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly.
What are some animals that go through metamorphosis? • Butterflies • Beetles and most insects • frogs and other amphibians • Can you think of more?
What are some ways that a frog life cycle and a butterfly life cycle are alike? • Both go through metamorphosis • Both start as eggs • Both reproduce • Both eventually die • Both grow
What are some ways that a frog life cycle and butterfly life cycle are different? • One lives on land and one spends part of its life in the water • A butterfly spends time in a chrysallis • A frog starts with gills and develops lungs • A butterfly spends part of its life as a caterpillar
What is a nymph? • A young insect such as a young grasshopper
What is a larva? • A stage in the insect life cycle when the insect is in the form of a worm-type creature
What is the pupa? • A stage in the insect’s life cycle where the larva is in a cocoon and does not eat