Food Chains and Food Webs: Interactive Learning Quizzes for 2nd Grade Science

Question 1

In the food chain Grass ----> Grasshopper ----> Frog ----> Snake, which organism produces its own food?

Accepted Answer

Grass

Answer

Grasshopper

Answer

Frog

Answer

Snake

Question 2

In a food chain, which of these is NOT an organism?

Accepted Answer

Rock

Answer

Plant

Answer

Insect

Answer

Bird

Question 3

Which of these is an example of a food chain in a forest?

Accepted Answer

Acorn → Squirrel → Hawk

Answer

Grass → Rabbit → Fox

Answer

Algae → Fish → Bear

Answer

Plankton → Shrimp → Whale

Question 4

What is the main source of energy for most food chains and food webs?

Accepted Answer

Sunlight

Answer

Water

Answer

Soil

Answer

Animals

Question 5

What might happen if a group of animals that eat plants suddenly disappears?

Accepted Answer

The whole ecosystem might be affected.

Answer

The number of plants might increase.

Answer

The number of animals that eat plants might decrease.

Answer

Nothing will happen.

Question 6

Which organism starts the food chain: Grass -> Grasshopper -> Bird -> Hawk?

Accepted Answer

Grass

Answer

Grasshopper

Answer

Bird

Answer

Hawk

Question 7

What is the purpose of a food web?

Accepted Answer

To show how energy travels through nature

Answer

To show how animals live together

Answer

To count how many of each animal there are

Answer

To tell us what will happen to the world in the future

Question 8

What is the job of a green plant in a food chain?

Accepted Answer

To make food from sunlight

Answer

To eat other animals

Answer

To break down waste

Answer

To provide shelter for animals

Question 9

Which of these **could** be the first animal in a food chain?

Accepted Answer

Grasshopper eating grass

Answer

Snake eating a mouse

Answer

Lion eating a zebra

Answer

Owl eating a mouse

Question 10

Which of these food chains is **correct**?

Accepted Answer

Grass → Grasshopper → Snake → Hawk

Answer

Hawk → Snake → Grasshopper → Grass

Answer

Snake → Hawk → Grasshopper → Grass

Answer

Grass → Hawk → Snake → Grasshopper

Question 11

How do decomposers help a food chain?

Accepted Answer

By breaking down dead plants and animals

Answer

By eating primary consumers

Answer

By making food for plants

Answer

By providing homes for animals

Question 12

Which of these is an example of a food web?

Accepted Answer

A diagram showing how a hawk, a snake, and a grasshopper are connected

Answer

A list of all the animals in a forest

Answer

A pyramid showing the number of animals at different levels

Answer

A map of a forest

Question 13

Which of these shows the correct order of a food chain?

Accepted Answer

Producer -> Consumer -> Decomposer

Answer

Decomposer -> Producer -> Consumer

Answer

Consumer -> Producer -> Decomposer

Answer

Decomposer -> Consumer -> Producer

Question 14

What do decomposers do in a food web?

Accepted Answer

Break down dead things

Answer

Make food for other living things

Answer

Eat other living things

Answer

Give homes to other living things

Question 15

Which of these is a producer?

Accepted Answer

Grass

Answer

Rabbit

Answer

Hawk

Answer

Bacteria

Question 16

What is the name for an animal that eats both plants and meat?

Accepted Answer

Omnivore

Answer

Herbivore

Answer

Carnivore

Answer

Producer

Question 17

Which of these is not a part of a food chain?

Accepted Answer

Animals that break down dead things

Answer

Plants that make their own food

Answer

Animals that eat plants

Answer

Animals that hunt other animals

Question 18

Where does the energy in a food chain come from?

Accepted Answer

From the plants that make their own food

Answer

From the animals that eat plants

Answer

From the animals that hunt other animals

Answer

From the animals that break down dead things

Question 19

Which of these animals is a primary consumer?

Accepted Answer

Rabbit

Answer

Grass

Answer

Wolf

Answer

Mushroom

Question 20

What can happen if the number of animals that eat plants increases?

Accepted Answer

Fewer plants will grow

Answer

More plants will grow

Answer

More animals that hunt other animals will appear

Answer

No change will occur

Question 21

What's the difference between a food chain and a food web?

Accepted Answer

A food chain shows only one possible path of eating, while a food web shows all possible paths

Answer

A food chain is a straight line, while a food web is a circle

Answer

A food chain is made up of plants and animals, while a food web includes fungi and bacteria

Answer

There is no difference

Question 22

What do decomposers do in a food chain or food web?

Accepted Answer

Break down dead things

Answer

Make food for plants

Answer

Eat other animals

Answer

Bring energy from the sun

Question 23

If the number of insects decreases, what might happen to the number of birds?

Accepted Answer

It will decrease

Answer

It will increase

Answer

It will stay the same

Answer

It will change randomly

Question 24

Where does all the energy for living things on Earth come from?

Accepted Answer

The sun

Answer

Plants

Answer

Animals

Answer

Water

Question 25

What happens to food webs when habitats are destroyed?

Accepted Answer

Fewer food choices for animals

Answer

More plants in the food web

Answer

No change to food webs

Question 26

When energy moves from one level of a food chain to the next, what happens to it?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It disappears

Question 27

In a food web, who does NOT eat other animals?

Accepted Answer

Grass

Answer

Mouse

Answer

Snake

Answer

Owl

Question 28

If all the grass in a field dies, what will likely happen to the rabbits that live there?

Accepted Answer

Their population will shrink

Answer

Their population will grow

Answer

Their population will stay the same

Answer

They will become extinct

Question 29

What is the name for the first level of a food chain?

Accepted Answer

Producers

Answer

Primary consumers

Answer

Secondary consumers

Answer

Tertiary consumers

Question 30

What is the difference between a food chain and a food web?

Accepted Answer

A food chain shows one path of energy flow, while a food web shows many.

Answer

A food web shows one path of energy flow, while a food chain shows many.

Answer

They are the same thing.

Answer

They are completely different concepts.

Question 31

Who helps break down plants and animals that have died?

Accepted Answer

Decomposers

Answer

Producers

Answer

Consumers

Answer

Top predators

Question 32

In the food chain **grass → grasshopper → snake → hawk**, which animal is the secondary consumer?

Accepted Answer

Snake

Answer

Grass

Answer

Grasshopper

Answer

Hawk

Question 33

What is a key role that decomposers play in food chains?

Accepted Answer

Break down dead plants and animals

Answer

Create food for other living things

Answer

Hunt and eat other animals

Question 34

Why does biodiversity make food webs stronger and less likely to break apart?

Accepted Answer

Different animals and plants have other things to eat if their usual food disappears.

Answer

Food webs become more complicated, making them harder to disrupt.

Answer

Competition between animals and plants is eliminated, making the food web more efficient.

Question 35

Which of the following is a living thing that makes its own food from sunlight?

Accepted Answer

Grass

Answer

Rabbit

Answer

Hawk

Answer

Snake

Question 36

What do animals at the top of a food chain depend on for food?

Accepted Answer

Animals at the bottom of the food chain

Answer

Energy from the sun

Answer

Minerals from the soil

Answer

Water from the environment

Question 37

Which of the following could make a food chain unbalanced?

Accepted Answer

A new animal moving into the area that eats other animals

Answer

More plants growing

Answer

Fewer animals eating plants

Answer

More sunlight reaching the plants

Question 38

Which animal in a food chain eats other animals but is not eaten by any other animals?

Accepted Answer

Hawk

Answer

Grass

Answer

Mouse

Answer

Snake

Question 39

What happens to the energy as it moves from one animal to another in a food chain?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It changes to other forms of energy

Question 40

What do decomposers do in a food web?

Accepted Answer

Break down dead animals and plants and return nutrients to the soil

Answer

Make food for other animals

Answer

Control the number of animals

Answer

Provide homes for other animals

Question 41

What might happen if all the top predators in a food web were to disappear?

Accepted Answer

The number of animals that eat plants would increase

Answer

The number of plants would decrease

Answer

The food web would become more stable

Answer

The variety of animals in the area would increase

Question 42

Producers, animals that make their own food using sunlight, are part of a food chain. Which of these is NOT a producer?

Accepted Answer

Rabbit

Answer

Grass

Answer

Algae

Answer

Tree

Question 43

In a food chain, animals that eat plants are called what?

Accepted Answer

Consumers

Answer

Producers

Answer

Decomposers

Answer

Predators

Question 44

Which animal is an example of a secondary consumer?

Accepted Answer

Snake

Answer

Worm

Answer

Frog

Answer

Hawk

Question 45

When energy moves from one level to the next in a food chain, what happens to the amount of energy?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It disappears

Question 46

Who makes its own food in a food chain?

Accepted Answer

Plant

Answer

Grasshopper

Answer

Snake

Answer

Owl

Question 47

Which living thing gets energy directly from the sun?

Accepted Answer

Producer

Answer

Consumer

Answer

Decomposer

Answer

Predator

Question 48

What is a food web?

Accepted Answer

Many food chains linked together

Answer

One straight line of who eats who

Answer

Animals that live together

Answer

A graph showing how many animals there are

Question 49

If there are fewer grasshoppers, what will likely happen to the snakes?

Accepted Answer

There will be fewer snakes

Answer

There will be more snakes

Answer

Nothing will change

Answer

The snakes will change what they eat

Question 50

Which animal eats plants?

Accepted Answer

Rabbit

Answer

Tiger

Answer

Eagle

Answer

Shark

Question 51

Who is at the top of a food web?

Accepted Answer

Animals that eat other predators

Answer

Animals with no enemies

Answer

Animals that only eat plants

Answer

Animals that are eaten by everyone else

Question 52

What do decomposers do in a food chain?

Accepted Answer

Break down dead things

Answer

Make food

Answer

Eat plants

Answer

Hunt animals