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Third Grade (Grade 3) Ecology Questions

You can create printable tests and worksheets from these Grade 3 Ecology questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Grade 3 Communities, Populations, and Ecosystems
What provides a population with all its needs, such as a tree does for squirrels and bugs?
  1. environment
  2. population
  3. community
  4. habitat
Grade 3 Food Chains and Webs
What is a herbivore?
  1. plant eater
  2. meat eater
  3. both
Grade 3 Food Chains and Webs
Decomposers can be either carnivores, omnivores, or herbivores.
  1. True
  2. False
Grade 3 Biomes
There are two major kinds of water ecosystems in the world.
  1. True
  2. False
Grade 3 Communities, Populations, and Ecosystems
Sea lions on the same crowded rock are competing for
  1. space.
  2. energy.
  3. water.
  4. food.
Grade 3 Food Chains and Webs
What kind of eaters are human beings?
  1. herbivores
  2. omnivores
  3. meat eaters
  4. vegetarians
Grade 3 Food Chains and Webs
What is an omnivore?
  1. plant eater
  2. meat eater
  3. both
Grade 3 Biomes
This biome in Africa has lions, zebras, elephants, giraffes and other such animals.
  1. Savannah
  2. North Pole
  3. Classroom
  4. Tropical Rain Forest
Grade 3 Food Chains and Webs
An organism that makes its own food is called a
  1. producer.
  2. consumer.
  3. decomposer.
  4. herbivore.
Grade 3 Conservation and Biodiversity
An organism is                 when there are only a few living members of its kind left.
  1. extinct
  2. endangered
  3. migrating
  4. adapting
Grade 3 Biomes
Oak, maple, and beech trees drop their leaves in the fall. In which ecosystem are they found?
  1. tundra
  2. tropical forest
  3. deciduous forest
  4. coniferous forest
Grade 3 Communities, Populations, and Ecosystems
What is something that forces an ecosystem to change?
  1. disturbance
  2. interdependence
  3. adaptation
  4. succession
Grade 3 Food Chains and Webs
A decomposer feeds on dead material, such as leaves and animal waste. What are examples of decomposers?
  1. sharks, eagles, tigers, lions
  2. worms, insects, snails, mushrooms, molds
  3. herbivores, omnivores, carnivores
Grade 3 Biomes
Which Biome has the most precipitation (rain)?
  1. Desert
  2. Tropical Rain Forest
  3. Tundra
  4. Classroom
Grade 3 Communities, Populations, and Ecosystems
A habitat is made up of all the living and nonliving things that interact in one place.
  1. True
  2. False
Grade 3 Biomes
What is the biggest difference between a desert and a tropical forest?
  1. how cold each gets
  2. how warm each gets
  3. how much life each has
  4. how much rain each gets
Grade 3 Biomes
Temperate grasslands have four
  1. seasons.
  2. roots.
  3. soils.
Grade 3 Food Chains and Webs
What is a carnivore?
  1. meat eater
  2. plant eater
  3. both
Grade 3 Biomes
In some biomes, leaves float in order to get sunlight. In which biome do they live?
  1. arctic tundra
  2. rain forest
  3. aquatic
  4. South Pole
Grade 3 Food Chains and Webs
Which is a consumer?
  1. Fall - Apple - Small
  2. Thanksgiving - Turkey - Small
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