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Life Cycles All living things grow and change in their lifetimes. Every plant and every animal goes through a life cycle in which it starts its life, develops into an adult, and dies. The different stages of a life cycle are defined by how the physical appearance of an organism changes. Some animals have many shared features between their juveniles and adult stages. While there are differences, it does not compare to the drastic changes that occur for other animals that experience metamorphosis – in which some grow extra limbs!
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Teacher Guide
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Pre-Class Activities
What is that?
This activity aims to spark curiosity about life cycles and how animals develop. |
Times are Changing
This activity aims to begin comparing and contrasting between younger and older adults. |
Memory Timeline
This activity aims to facilitate understanding growth and change overtime by analyzing memories. |
Lesson
Life Cycles
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A inquiry-based presentation to assist in formal instruction of this topic. Slides include a script that can be used to help guide student thinking and to support student understanding.
A recording of this presentation can also be found here. |
Post-Class Activities
It's About Time
This activity aims to encourage thinking about what can be learned from growth and change. |
In Real Time
This activity aims to facilitate observation of change overtime of a living organism. |
Time Machine
This activity aims to address that organisms continue to change and grow overtime. |
In Our Genes
This activity aims to consider which features are inherited and which are acquired. |
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The Philadelphia Zoo benefits from the support of the Prince Albert II of Monaco Foundation.
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