Life Processes and Living Organisms: Interactive Learning Quizzes for Third Grade Science

Question 1

How do the body parts of plants and animals help them survive in their surroundings?

Accepted Answer

Their body parts help them survive and thrive in their specific habitats.

Answer

Their body parts are random and don't help them survive.

Answer

Their body parts are all the same because they all live on Earth.

Question 2

What is the main difference between sexual and asexual reproduction?

Accepted Answer

Sexual reproduction involves the fusion of gametes (sperm and egg), while asexual reproduction does not.

Answer

Sexual reproduction involves one parent, while asexual reproduction involves two parents.

Answer

Sexual reproduction results in offspring that are genetically identical to the parent, while asexual reproduction results in offspring that are genetically different from the parent.

Answer

Sexual reproduction is more common in plants, while asexual reproduction is more common in animals.

Question 3

In an experiment about how different liquids affect plant growth, which liquid should you use as a control?

Accepted Answer

Water

Answer

Fertilizer

Answer

Salt water

Question 4

How do plants and animals depend on each other in an ecosystem?

Accepted Answer

Plants provide food for animals, while animals provide carbon dioxide for plants to use in photosynthesis.

Answer

Animals provide food for plants, while plants provide oxygen for animals to breathe.

Answer

Plants and animals compete with each other for resources, such as food and water.

Answer

Plants and animals do not rely on each other within an ecosystem.

Question 5

During respiration, the diaphragm and lungs work together to exchange gases. How do they do this?

Accepted Answer

The diaphragm contracts, pulling down and expanding the lungs to take in oxygen. When the diaphragm relaxes, the lungs recoil and release carbon dioxide.

Answer

The lungs expand and contract, causing the diaphragm to move up and down.

Answer

The diaphragm and lungs do not work together during respiration.

Answer

The diaphragm releases carbon dioxide and the lungs take in oxygen.

Question 6

Which of these is NOT a non-living factor that affects living things in an ecosystem?

Accepted Answer

Predator-prey relationships

Answer

Temperature

Answer

Sunlight

Answer

Water availability

Question 7

Which part of an ecosystem is not alive?

Accepted Answer

Rocks

Answer

Plants

Answer

Animals

Question 8

What does biodiversity mean?

Accepted Answer

The different types of living things in an area, like plants, animals, and other organisms

Answer

The number of living things in a group

Question 9

Which of these is NOT something that all living things must do to survive?

Accepted Answer

Sleep

Answer

Breathe

Answer

Eat

Answer

Grow

Question 10

When scientists classify living things, which of these is NOT a characteristic they consider?

Accepted Answer

The color of their eyes

Answer

What they eat

Answer

Their size

Question 11

What is NOT a characteristic of living things?

Accepted Answer

They are made of metal.

Answer

They can move.

Answer

They can reproduce.

Question 12

What is NOT a characteristic of living organisms?

Accepted Answer

They are made of metal.

Answer

They can reproduce.

Answer

They can move.

Question 13

What feature is unique to living things?

Accepted Answer

Made of tiny building blocks called cells

Answer

Breathing

Answer

Moving from one place to another

Question 14

What is NOT a characteristic of all living things?

Accepted Answer

They are made of non-living matter.

Answer

They can move.

Answer

They can reproduce.

Answer

They grow and change.

Question 15

How do plants obtain the nutrients and energy they require to survive and grow?

Accepted Answer

Photosynthesis

Answer

Diffusion

Answer

Respiration

Question 16

Which of these is NOT a characteristic of living things?

Accepted Answer

Made of non-living materials

Answer

Growing and changing

Answer

Making more of themselves

Question 17

Which of the following is NOT a characteristic of all living things?

Accepted Answer

Living things are made of non-living matter.

Answer

Living things grow and change.

Answer

Living things can have babies.

Answer

Living things react to their surroundings.

Question 18

What is NOT something that living things need to do to stay alive?

Accepted Answer

Talk to each other

Answer

Eat food

Answer

Breathe air

Answer

Make new living things

Question 19

Which of these is NOT a characteristic of a living thing?

Accepted Answer

Does not exist

Answer

Can change to fit its surroundings

Answer

Can sense and react to changes

Answer

Can make more of itself

Question 20

What is something that living things do NOT do?

Accepted Answer

Get their energy from non-living things

Answer

Make copies of themselves

Answer

Sense changes in their surroundings and react to them

Question 21

Which of these is the process by which plants make their own food using sunlight?

Accepted Answer

Photosynthesis

Answer

Digestion

Answer

Respiration

Answer

Absorption

Question 22

Which animal feature helps it survive underwater?

Accepted Answer

Fins

Answer

Claws

Answer

Fur

Answer

Scales

Question 23

Which of these is a warm-blooded animal that gives birth to live young?

Accepted Answer

Cat

Answer

Fish

Answer

Bird

Answer

Snake

Question 24

What is the main job of the lungs in our body?

Accepted Answer

To take in oxygen

Answer

To pump blood

Answer

To digest food

Answer

To remove waste

Question 25

Why do plants and animals need to reproduce?

Accepted Answer

To create new individuals and continue their species

Answer

To get energy

Answer

To make their environment better

Answer

To grow bigger

Question 26

Which of these is a living thing in a forest?

Accepted Answer

Trees

Answer

Water

Answer

Sunlight

Answer

Wind

Question 27

How do different animals and plants depend on each other in a forest?

Accepted Answer

They form food chains and webs

Answer

They play together

Answer

They have no relationship

Answer

They fight each other

Question 28

What is the most important difference between living and non-living things?

Accepted Answer

Living things use energy

Answer

Size

Answer

How they look

Answer

Living things move

Question 29

What is NOT essential for living things to survive?

Accepted Answer

Playing games

Answer

Food

Answer

Air

Answer

Shelter

Question 30

How do plants make their own food?

Accepted Answer

Through sunlight

Answer

By eating other plants

Answer

By drinking water

Answer

By breathing air

Question 31

Which of these is NOT a way animals breathe?

Accepted Answer

Through their ears

Answer

Through their lungs

Answer

Through their skin

Answer

Through their gills

Question 32

Which animal lays eggs?

Accepted Answer

Hen

Answer

Cat

Answer

Snake

Answer

Lion

Question 33

What is an ecosystem?

Accepted Answer

A group of living things and their surroundings

Answer

A type of forest

Answer

A body of water

Answer

A mountain range

Question 34

Which of these is NOT part of a food chain?

Accepted Answer

People

Answer

Plants

Answer

Animals that eat plants

Answer

Animals that eat other animals

Question 35

What do food chains show?

Accepted Answer

How energy moves through living things

Answer

How plants grow

Answer

How animals find food

Answer

How the weather changes

Question 36

What is the job of decomposers?

Accepted Answer

To break down dead plants and animals

Answer

To make food for other living things

Answer

To clean the air and water

Answer

To provide homes for other living things

Question 37

Which of these is a living thing?

Accepted Answer

A plant

Answer

A rock

Answer

A car

Answer

A cloud

Question 38

How do plants make their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Reproduction

Answer

Circulation

Question 39

Which of these is NOT a life process for living things?

Accepted Answer

Solving math problems

Answer

Eating

Answer

Sleeping

Answer

Growing

Question 40

Why do living things need to breathe?

Accepted Answer

To get energy

Answer

To get rid of waste

Answer

To make babies

Answer

To protect themselves

Question 41

Which of these is true about all living things?

Accepted Answer

They can make more of themselves

Answer

They can fly

Answer

They can talk

Answer

They can think like people

Question 42

What is an ecosystem?

Accepted Answer

A group of living things and the place where they live

Answer

A type of plant

Answer

A type of animal

Answer

A type of weather

Question 43

Which of these is a producer in an ecosystem?

Accepted Answer

A plant

Answer

A deer

Answer

A fox

Answer

A mushroom

Question 44

What is an adaptation?

Accepted Answer

Something that helps a living thing survive in its home

Answer

A type of plant

Answer

A type of animal

Answer

A type of weather

Question 45

Which one of the following is NOT a living organism?

Accepted Answer

A rock

Answer

A plant

Answer

An animal

Answer

A bacterium

Question 46

What is the name of the process by which plants use sunlight, water, and air to create their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Excretion

Answer

Reproduction

Question 47

Which of the following is a characteristic shared by all living organisms?

Accepted Answer

The ability to reproduce

Answer

The ability to move

Answer

The ability to breathe

Answer

The color green

Question 48

What is the process by which living organisms release energy from food?

Accepted Answer

Respiration

Answer

Excretion

Answer

Reproduction

Answer

Circulation

Question 49

What is an ecosystem?

Accepted Answer

A community of living organisms and their physical surroundings

Answer

A group of animals that live together

Answer

A type of plant that grows in water

Answer

A place where only humans live

Question 50

Which of the following is a decomposer?

Accepted Answer

A mushroom

Answer

Grass

Answer

A rabbit

Answer

A hawk

Question 51

What is the name of the process by which plants produce oxygen?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Excretion

Answer

Reproduction

Question 52

What is the main difference between a plant and an animal?

Accepted Answer

Plants can make their own food, while animals cannot

Answer

Plants can move, while animals cannot

Answer

Animals can breathe underwater, while plants cannot

Answer

Plants have leaves, while animals do not

Question 53

Which of the following is a living thing?

Accepted Answer

A tree

Answer

A rock

Answer

A chair

Answer

A car

Question 54

What is the process by which plants make their own food called?

Accepted Answer

Photosynthesis

Answer

Breathing

Answer

Digestion

Answer

Reproduction

Question 55

Which of the following animals is a warm-blooded vertebrate?

Accepted Answer

Bird

Answer

Snake

Answer

Frog

Answer

Shark

Question 56

What is the main function of the respiratory system?

Accepted Answer

To transport oxygen to the body

Answer

To remove waste products from the body

Answer

To protect the body from infection

Answer

To digest food

Question 57

What is the process by which living things make more of themselves called?

Accepted Answer

Reproduction

Answer

Respiration

Answer

Nutrition

Answer

Excretion

Question 58

What is the function of the digestive system?

Accepted Answer

To digest food and absorb nutrients

Answer

To transport oxygen to the body

Answer

To remove waste products from the body

Answer

To protect the body from infection

Question 59

What is the difference between a producer and a consumer in an ecosystem?

Accepted Answer

Producers make their own food, while consumers eat other organisms

Answer

Consumers make their own food, while producers eat other organisms

Answer

Producers and consumers both eat other organisms

Answer

Producers and consumers both make their own food

Question 60

Why do living things breathe?

Accepted Answer

To take in oxygen

Answer

To release carbon dioxide

Answer

To digest food

Answer

To circulate blood

Question 61

In a food chain, energy is passed from one living thing to another. Which living thing is the first to get energy in most food chains?

Accepted Answer

Green plants (Producers)

Answer

Animals (Consumers)

Answer

Bacteria (Decomposers)

Question 62

Which of these is NOT a life process that is essential for living organisms to survive?

Accepted Answer

Moving around

Answer

Getting nutrients

Answer

Breathing

Question 63

Besides sunlight and water, what other vital ingredient do green plants need to make their own food?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Nitrogen

Answer

Water

Question 64

What is NOT a characteristic of living things?

Accepted Answer

They are made of non-living materials.

Answer

They react to their surroundings.

Answer

They need water to survive.