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Third Grade (Grade 3) Ecology Questions

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Grade 3 Conservation and Biodiversity
When a plant or animal organism is gone forever it is
  1. extinct.
  2. endangered.
  3. threatened.
  4. fossilized.
Grade 3 Communities, Populations, and Ecosystems
A habitat gives a living thing everything necessary to survive.
  1. True
  2. False
Grade 3 Communities, Populations, and Ecosystems
An ecosystem is made up of all the living and nonliving things that interact in one place.
  1. True
  2. False
Grade 3 Biomes
This biome represents               .
  1. river
  2. grassland
  3. hills
  4. cows
Grade 3 Communities, Populations, and Ecosystems
If a fire burned part of a forest ecosystem, what would probably happen?
  1. All the animals would die.
  2. All the plants and seeds would be destroyed forever.
  3. A flood would bring new rich soil.
  4. The animals would move to a nearby part of the ecosystem.
Grade 3 Biomes
You can find dolphins in the
  1. desert.
  2. jungle.
  3. forest.
  4. sea.
Grade 3 Biomes
This biome has very little rain, vegetation and has extreme temperatures.
  1. Tropical Rain Forest
  2. Classroom
  3. Desert
  4. lunch room
Grade 3 Communities, Populations, and Ecosystems
Each ecosystem has places for plants and animals to live. Animals homes are called
  1. environments.
  2. habitats.
  3. houses.
  4. deserts.
Grade 3 Biomes
This biome represents                     .
  1. Desert
  2. Tropical Rain Forest
  3. Tundra
  4. Classroom
Grade 3 Food Chains and Webs
An animal that eats both plants and animals is called a(n)
  1. carnivore.
  2. herbivore.
  3. omnivore.
  4. none of the above
Grade 3 Communities, Populations, and Ecosystems
Which statement is a good description of the HABITAT of an alligator?
  1. Alligators live in the desert.
  2. Alligators live on the bottom of a pond and come on land when it is sunny and warm.
  3. Alligators eat fish, birds, and other small animals.
  4. Alligators have scales on their skin for protection.
Grade 3 Biotic and Abiotic
                is the pattern of weather in a place over a long time.
  1. Climate
  2. Soil
  3. Snow
  4. Ecosystem
Grade 3 Food Chains and Webs
Which is a producer?
  1. Fall - Tree - Small
  2. Fall - Mushrooms - Small
Grade 3 Biomes
Caribou and polar bears live in which ecosystem?
  1. desert
  2. tundra
  3. grasslands
  4. tropical forest
Grade 3 Conservation and Biodiversity
When we cut down trees or drain wetlands, what do we do to the habitats of many living things?
  1. help
  2. destroy
  3. build
  4. plant
Grade 3 Communities, Populations, and Ecosystems
A habitat includes both living and nonliving things.
  1. True
  2. False
Grade 3 Biomes
The main plants in a                 ecosystem are trees.
  1. desert
  2. forest
  3. grassland
  4. water
Grade 3 Food Chains and Webs
A food chain shows the flow of energy using arrows. Which is a proper food chain?
  1. Sun -> producer -> carnivore -> omnivore -> decomposer
  2. decomposer -> carnivore -> omnivore -> producer -> Sun
  3. Sun -> producer -> herbivore -> carnivore -> decomposer
  4. herbivore -> Sun -> carnivore -> producer -> omnivore
Grade 3 Biomes
What does abiotic mean?
  1. living
  2. non-living
Grade 3 Conservation and Biodiversity
Instead of killing animals for their ivory or horns, we should
  1. make laws that protect them.
  2. create habitats where they are protected.
  3. both a and b
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