The student will investigate and understand that
plants and animals undergo a series of orderly and identifiable changes
during their lives.
Key concepts include:
- some
animals (frogs and butterflies) undergo distinct stages during their life cycles while others
generally resemble their parents
- changes from the formation of the flower to the development of fruit in flowering plants
Some plants and animals do not resemble their parents as they go through the stages of their life cycle (such as butterflies and frogs).
Other plants and animals
look very much like their parents throughout
their life cycles (such as grasshoppers).
Butterflies and frogs go through dramatic changes during the stages of their life cycles. The change in form and appearance through the stages from young to adult is called metamorphosis.
Butterflies go through complete metamorphosis. They begin life as an egg then develop into a wormlike larva form called a caterpillar. Dramatic changes happen to the larvae when they pupate (form a chrysalis) then emerge as adult butterflies with wings.
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Frogs also go through complete metamorphosis, but the stages are a bit different and have different names. Eggs hatch into young called tadpoles with tails and gills for swimming. As arms and legs emerge, they change into adult frogs that have lungs and can live both in water and on land.
Life Cycle of Frog and Butterfly
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Frog Life Cycle Matching Activity
All About Frogs - A Read and Learn Book
Use Little Explorer to Learn about Frogs
Animals that do not have distinct stages from birth to maturity go through incomplete metamorphosis. These animals usually resemble their parents and grow larger but do not drastically change in appearance. An example of an animal that resembles its parent throughout its life is a grasshopper.
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- Identify and describe changes in a plant from flower to fruit
- Construct and interpret models/diagrams of animal and plant life cycles.
Parts of a Plant Plant Parts ~ Parts of a Plant Plants Parts
Try it Out!