Life Cycles

Objective: Plants and animals have life cycles that include the beginning of life, growth and development, reproduction and death. The details of a life cycle are different for different organisms.

Let’s see what you already know about life cycles…

Word Bank adult death tadpole eggs pupa larva egg nymph hatching 1. Most animals come from ______________. 2. When an animal breaks out of an egg, that is called ________________. 3. What are the three stages of growth of a grasshopper?   A.___________________   B.___________________   C._______________  4. Name the stages of butterfly growth.   A.___________________   B.___________________    C.___________________    D.___________________   5. The second stage in the life cycle of a frog is called a _______________. 6. The final stage in the life cycle of all animals is _________________.

Vocabulary life cycle metamorphosis stages of the life cycle pupa larva egg adult chrysalis nymph molting maturity tadpole

Essential Vocabulary Life cycle – the stages a plant or animal goes through from egg to adult Metamorphosis – the process of change during the life cycle Simple metamorphosis – the process of change during the life cycle where the young resembles the adult

Complete metamorphosis – the young does not look like the adult Life cycle stages Birth Growth/change Maturity Death

3 Phase Insect Life Cycle

Simple Metamorphosis Insects Cockroaches Grasshoppers Dragonflies

4 Phase Insect Life Cycle

Complete Metamorphosis Insects Beetles Butterflies/moths Flies Ants, wasps, bees fleas

Identify the following life cycles as - simple (3 phases) - complete (4 phases)

Life Cycle of a Butterfly

Dragonfly Life Cycle

Mosquito Life Cycle

Grasshopper Life Cycle

Now, let’s try that test again and see what you have learned!

Word Bank adult death tadpole eggs pupa larva egg nymph hatching 1. Most animals come from ______________. 2. When an animal breaks out of an egg, that is called ________________. 3. What are the three stages of growth of a grasshopper?   A.___________________   B.___________________   C._______________  4. Name the stages of butterfly growth.   A.___________________   B.___________________    C.___________________    D.___________________   5. The second stage in the life cycle of a frog is called a _______________. 6. The final stage in the life cycle of all animals is _________________.