Wild Wonders Vocabulary Test
3rd Grade Science Ecosystem Unit Assessment
Score: / 15
Wild Wonders Vocabulary Test
Read each question carefully and show what you know about living things!
Name:
Date:
1
Part 1: Fill in the Blank
Use each word from the bank once (1 pt each)
Word Bank
Cross off each word as you write it
attracts
clusters
engineers
migrating
pollination
structures
Honeybees assist plants with by moving yellow pollen between blossoms so new seeds and fruit can grow.
When autumn arrives, monarch butterflies fly thousands of miles south, to find warm winter habitats.
The sweet scent and bright scarlet petals of a flower hungry hummingbirds looking for nectar.
Beavers are called ecosystem because their stick-and-mud dams create wetlands that help many other living things.
Wild blackberries do not grow alone; they hang together in tight bunch along the sunny meadow brambles.
Underground burrows, hollow logs, and wasp nests are physical that provide safe shelter for wildlife.
2
Part 2: Multiple Choice
Circle the best letter (1 pt each)
- What does the term biodiversity mean?
A Having only one single kind of grass in a lawn
B The rich variety of many different living things
C The temperature of rocks inside a dark cave
D A single rain puddle drying up in the sun
- Frogs, toads, and salamanders are called amphibians because they:
A Have warm fur and drink milk as babies
B Have moist skin and can live both in water and on land
C Have feathers and build nests high in pine trees
D Stay buried under desert sand their entire lives
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Wild Wonders Vocabulary Test • Page 2 Continue with the questions below.
Student Name:
Part 2 Continued: Multiple Choice
Circle the best letter (1 pt each)
- Why do scientists describe river frogs as bioindicators?
A They make a loud mechanical horn sound before storms
B Their health shows scientists how clean an environment is
C They can survive without any water or oxygen
D They are electronic tools placed in rivers by ecologists
- In an ecosystem, what is a domino effect?
A A game played with black and white dotted tiles
B When one change causes a series of other events to happen
C When heavy rocks tumble straight down a mountain hill
D When plants fall asleep during the afternoon hours
- A nature group cleans an old parking lot, plants native prairie grass, and brings back river otters. This is called:
A Rewilding
B Deforestation
C Migrating
D Pollination
3
Part 3: Eco Detective Challenge
Apply what you know (4 pts total)
12. Science Case File: Yellowstone National Park (1 pt)
"When wolves returned to the park, elk moved away from open rivers. Because willows grew back, beavers had branches to build lodges, which created quiet ponds for birds, frogs, and fish."
Which vocabulary term best describes this chain reaction?
Clusters
Domino effect
Structures
13. Sentence Crafter (3 pts) Bonus Application
Choose any TWO words from this test. Write one complete science sentence showing how they connect in nature:
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