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Introduction
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Contents
1. What you can do
2. Water
3. Ecology
4. Amphibians
5. Environmental Issues
6. Keystone species
7. Get Wet!- Field Study Ideas
8. The Zoo Experience
9. Frogs & Friends
10. Case Studies
11. Resources
12. Glossary
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4.6. ONE OF THESE THINGS BELONGS WITH THE OTHER
(Level: 2 : 11 acad : 12 acad :: Life Cycles)
Purpose: To recognize the changes in appearance of various aquatic organisms throughout their life
cycles.
What You Need: Illustrations of the larval, nymph, hatchling, newborn, juvenile, and adult forms of
various aquatic organisms (provided)
What You Do:
Before this activity, students should have a basic understanding of organisms that undergo metamorphosis.
This should include why they undergo metamorphosis and the difference between incomplete and complete
metamorphosis. Students should realize that there can be extreme differences in appearance for some
organisms.
Part A
- Have the students bring in photos of themselves as a child, and as they are now.
- Divide the students into groups and allot each group several of the scrambled photo pairs.
- The students in the groups must attempt to match the pairs.
- Discuss with the students the difficulty in matching the photo pairs. Many animals change their appearance
throughout their life cycle
Part B
- Divide the class in half. Pass out the adult life form pictures to one half of the class, and the early
life form pictures to the other half of the class.
- Have the students then search between each other for the corresponding match of their particular life
form.
- After a time limit, check the matching pairs to see if they are correct, and allow students who have not
made a match to locate each other.
- Repeat activity for as long as interest is maintained.
Suggested Organisms: |
mayfly |
Whirligig Beetle |
stonefly |
Northern Harrier (Marsh Hawk) |
caddisfly |
Snapping Turtle |
dragonfly |
Beaver |
damselfly |
Water Strider |
cranefly |
Predacious Diving Beetle |
butterfly |
newt/eft |
crayfish |
salamander |
Common Loon |
mosquito |
duck |
Garter Snake |
Pied-billed Grebe |
leech |
Leopard Frog |
blackfly |
Extension: (Additional Curriculum Links: A13, L15, M23)
- Select one of the following animals and describe its life cycle as it relates to a wetland.
mosquito |
toad |
dragonfly |
salamander |
snail |
turtle |
frog |
Diving Beetle |
- Include a labelled diagram of each stage in the animal's life cycle.
- Display your research in the classroom so other students can learn about other life cycles.
Click here to see the list of activities for this unit.
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