Worksheets3rd Grade Ecosystems Review
Total questions: 15
Worksheet time: 8mins
What do organisms need to survive?
Food, water, shelter, and air.
Food and Air
Water and Air
Trees and Air
Which physical characteristic of animals is most helpful to survival in desert ecosystems?
Ability to store/save water in their bodies
Thick fur
Smooth, slippery skin
Long claws
A grassland habitat with trees and large animals would BEST support which populations of animals?
woodpeckers and hummingbirds.
polar bears and penguins.
giraffes and lions.
hawks and owls.
Which of the following is NOT a consumer?
Frogs
Grass
Crickets
Snakes
Which of the following correctly shows how energy moves through a food chain?
Sun → plants → plant eaters → meat eaters
Sun → meat eaters → plants → plant eaters
Sun → plant eaters → meat eaters → plants
Sun → plants → meat eaters → plant eaters
Which of the following things in an ocean ecosystem makes its own food from sunlight?
Octopus
Algae
Shrimp
Stingray
Which animal could NOT belong in a desert ecosystem?
Grizzly Bear
Lizard
Snake
Insect
In this diagram below, which organism would have the MOST impact if removed from the food chain?
Snake
Hawk
Mouse
Plants
Which description best describes how energy flows in a food chain?
From plant to Sun
From cricket to frog
From frog to plant
From snake to cricke
Which animal could NOT belong in a tundra ecosystem?
Artic fox
Penguin
Polar Bears
Snake
Which animal is a producer?
Shrimp
Algae
Shark
Octopus
What is the main source of energy for all food chains?
The sun is the main source of energy for all food chains.
A consumer is the main source of energy for all food chains.
The Moon is the main source of energy for all food chains.
Water is the main source of energy for all food chains.
What is a producer?
Breaks down organisms.
Makes its own food.
An organism eats another organism.
Hunts and eats prey.
What are decomposers?
Get their energy from the Sun.
They eat other organisms.
Break down dead organisms.
The flow of energy from one organism to another.
What are the 3 categories that organisms fall into?
Producer, carnivore, decomposer.
Producers, consumers, decomposers.
Herbivore, Carnivore, Omnivore
Consumer, Herbivore, producer.
