Can You Outsmart an Elementary School Biology Test?

Question 1

What Organ Pumps Blood Throughout the Body?

Question 1

What Gas Do We Breathe in That Keeps Us Alive?

Question 1

What Do Plants Need for Photosynthesis?

Question 1

What Body Part Helps You See?

Question 1

Which Body Part Helps You Hear?

Question 1

What Do Bees Collect From Flowers?

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Which Animal Lays Eggs?

Question 1

What Helps Your Bones Stay Strong?

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What Organ Helps You Breathe?

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Which Sense Uses Your Nose?

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What Do Tadpoles Grow Into?

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What Part of a Plant Holds It in the Ground?

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What Type of Animal Is a Lion?

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Which Part of the Body Digests Food?

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What Organ Helps Filter Waste From Your Blood?

Question 1

Which Living Thing Is a Producer in a Food Chain?

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Which Body System Controls Your Movements?

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What Does a Caterpillar Become?

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What Part of a Tree Carries Water From Roots to Leaves?

Question 1

What Do Humans Use Their Skin for?

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Which of These Animals Is Cold-Blooded?

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What Helps Your Body Fight Sickness?

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What Do Plants Release Into the Air?

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What Do Bones Connect to at Joints?

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Which Body Part Is Used for Tasting?

Question 1

What Do Animals Need to Survive?

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What Does an Omnivore Eat?

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What’s the Smallest Unit of Life?

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What Does a Bird Use to Fly?

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What Gas Do Plants Take in?

Question 1

What Organ Is Responsible for Thinking and Memory?

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Which Part of the Body Helps With Balance?

Question 1

Which of These Is a Vertebrate?

Question 1

How Do Fish Breathe Underwater?

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What Is the Function of Eyelashes?

Question 1

Which Living Thing Is a Decomposer?

Question 1

How Does a Baby Breathe Before Birth?

Question 1

Which of These Is a Reptile?

Question 1

What Does the Liver Help the Body Do?

Question 1

What Body Part Helps Birds Steer?

Question 1

What Gives Blood Its Red Color?

Question 1

Which of These Animals Undergoes Metamorphosis?

Question 1

What Does the Spine Protect?

Question 1

What Happens When You Sweat?

Question 1

Which Part of a Flower Makes Seeds?

Question 1

What Is the Job of the Large Intestine?

Question 1

What Is the First Stage of a Butterfly’s Life Cycle?

Question 1

How Do Penguins Keep Warm?

Question 1

Which Food Gives the Most Calcium?

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What Is the Job of White Blood Cells?

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Which System Includes the Bones?

Question 1

Which of These Animals Is a Herbivore?

Question 1

What Do Plants Use Their Roots for?

Question 1

Which Body System Controls Breathing?

Question 1

What Do Snakes Shed as They Grow?

Question 1

How Do Ants Communicate?

Question 1

What’s the Purpose of Feathers?

Question 1

What Causes Your Shadow to Appear?

Question 1

Which Animal Lives in a Hive and Makes Honey?

Question 1

What Is the Main Purpose of Leaves?

Question 1

Which of These Helps Keep Your Heart Healthy?

Question 1

What Is the Main Job of Red Blood Cells?

Question 1

What Is an Example of a Carnivore?

Question 1

What Happens When You Break a Bone?

Question 1

What Type of Teeth Do Herbivores Use to Chew Plants?

Question 1

Which of These Animals Is an Invertebrate?

Question 1

What Is the Job of the Stem in a Plant?

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Which of These Is a Basic Need for All Animals?

Question 1

What Does a Spider Use to Spin a Web?

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Which Sense Is Mainly Used When Reading a Book?

Question 1

Why Do Birds Migrate?

Question 1

What Is One Reason a Giraffe Has a Long Neck?

Question 1

What Part of the Body Helps You Smell?

Question 1

What’s the Function of Your Rib Cage?

Question 1

What Does a Food Web Show?

Question 1

Which of These Creatures Has Eight Legs?

Question 1

What Do Rainforests Need Most to Thrive?

Question 1

What Happens to Water in a Plant?

Question 1

What Happens When You Blink?

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What Sense Helps You Feel Heat and Texture?

Question 1

Which Animal Grows From Egg to Larva to Pupa to Adult?

Question 1

What Is Chlorophyll?

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Why Are Wetlands Important?

Question 1

Which of These Is an Example of Camouflage?

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What Body System Includes Your Brain and Nerves?

Question 1

What Type of Animal Eats Both Meat and Plants?

Question 1

Why Do Squirrels Store Nuts?

Question 1

What Is the Function of Fur on Animals?

Question 1

What Is an Ecosystem?

Question 1

What Do Frogs Use Their Long Tongues for?

1

Lungs

2

Heart

3

Liver

4

Stomach

The heart circulates oxygen-rich blood through the body, delivering nutrients and removing waste via the bloodstream.

1

Nitrogen

2

Helium

3

Oxygen

4

Carbon dioxide

Oxygen is vital for cellular respiration, a process that helps your body make energy from food.

1

Sunlight

2

Sugar

3

Salt

4

Sand

Sunlight powers photosynthesis, enabling plants to turn carbon dioxide and water into food.

1

Tongue

2

Nose

3

Ears

4

Eyes

The eyes detect light and send signals to the brain to form images of the world around you.

1

Mouth

2

Nose

3

Eyes

4

Ears

Your ears capture sound waves and send them to your brain, allowing you to understand noises and speech.

1

Nectar

2

Leaves

3

Water

4

Bark

Bees gather nectar to make honey and help pollinate plants as they travel from flower to flower.

1

Chicken

2

Cow

3

Horse

4

Dog

Chickens and most birds lay eggs to reproduce, with the embryo developing inside the egg shell.

1

Oxygen

2

Calcium

3

Caffeine

4

Sugar

Calcium is a mineral found in dairy and leafy greens that keeps your bones dense and healthy.

1

Stomach

2

Lungs

3

Heart

4

Kidneys

Lungs take in oxygen and remove carbon dioxide during the process of breathing.

1

Taste

2

Touch

3

Smell

4

Hearing

Your nose detects smells using receptors that send signals to the brain's olfactory system.

1

Lizards

2

Frogs

3

Fish

4

Snakes

Tadpoles are the larval stage of frogs and go through metamorphosis as they develop legs and lungs.

1

Leaves

2

Stem

3

Flower

4

Roots

Roots anchor the plant in the soil and absorb water and minerals needed for growth.

1

Mammal

2

Bird

3

Amphibian

4

Reptile

Lions are warm-blooded mammals that give birth to live young and nurse them with milk.

1

Brain

2

Stomach

3

Lungs

4

Liver

The stomach uses acid and enzymes to break food into nutrients the body can use.

1

Liver

2

Lungs

3

Kidneys

4

Heart

Kidneys remove toxins and waste from your blood, producing urine as part of your body’s filtration system.

1

Rabbit

2

Grass

3

Owl

4

Fox

Grass makes its own food through photosynthesis and is the base of many food chains.

1

Respiratory system

2

Circulatory system

3

Digestive system

4

Muscular system

The muscular system allows you to move your body using muscles attached to bones.

1

Bee

2

Worm

3

Ant

4

Butterfly

Caterpillars go through metamorphosis, forming a chrysalis and transforming into butterflies.

1

Trunk

2

Fruit

3

Branches

4

Bark

The trunk transports water and nutrients through xylem tissue to nourish the entire tree.

1

Breathing

2

Seeing

3

Protection

4

Thinking

Skin is the body’s largest organ and protects you from germs, injury, and harmful sun rays.

1

Elephant

2

Horse

3

Snake

4

Cat

Snakes are reptiles, meaning their body temperature changes with the environment instead of staying constant.

1

Platelets

2

Red blood cells

3

Plasma

4

White blood cells

White blood cells destroy viruses, bacteria, and other invaders that cause infections.

1

Sulfur

2

Nitrogen

3

Oxygen

4

Carbon dioxide

During photosynthesis, plants absorb carbon dioxide and release oxygen into the atmosphere.

1

Muscles

2

Lungs

3

Blood

4

Veins

Joints connect bones and allow movement with the help of muscles and ligaments.

1

Nose

2

Foot

3

Ear

4

Tongue

Your tongue has taste buds that detect sweet, sour, salty, bitter, and umami flavors.

1

Glue

2

TV

3

Plastic

4

Water

Water is essential for animals to regulate body temperature, digest food, and eliminate waste.

1

Only plants

2

Plants and animals

3

Fruits only

4

Only meat

Omnivores like humans eat both meat and plant-based foods for a balanced diet.

1

Organism

2

Organ

3

Cell

4

Tissue

Cells are the building blocks of all living things, from tiny bacteria to humans.

1

Teeth

2

Legs

3

Nose

4

Wings

Birds have strong, lightweight wings covered in feathers that allow them to fly through the air.

1

Nitrogen

2

Oxygen

3

Carbon dioxide

4

Hydrogen

Plants absorb carbon dioxide through tiny pores in their leaves and use it during photosynthesis.

1

Lungs

2

Liver

3

Brain

4

Heart

The brain controls thinking, memory, emotions, and decisions by processing signals from around the body.

1

Nose

2

Stomach

3

Inner ear

4

Liver

The inner ear contains tiny structures that sense movement and help you maintain balance and orientation.

1

Worm

2

Octopus

3

Jellyfish

4

Dog

Dogs have a backbone, which makes them vertebrates unlike jellyfish or worms.

1

Gills

2

Nostrils

3

Skin

4

Lungs

Fish use gills to extract oxygen from water and release carbon dioxide.

1

Filter air

2

Help you smell

3

Protect eyes from dust

4

Balance hearing

Eyelashes protect your eyes by catching dust and debris before it enters.

1

Cow

2

Tree

3

Mushroom

4

Ant

Mushrooms break down dead plants and animals, returning nutrients to the soil.

1

Through the umbilical cord

2

Through the nose

3

With lungs

4

By swallowing air

Oxygen is passed from the mother to the baby via the umbilical cord, not by breathing air.

1

Turtle

2

Frog

3

Whale

4

Penguin

Turtles are reptiles with dry scaly skin and lay eggs on land.

1

Create bones

2

Store oxygen

3

Pump blood

4

Filter toxins

The liver removes toxins from the blood and processes nutrients from food.

1

Eyes

2

Legs

3

Wings

4

Beaks

Birds use their wings to generate lift and steer while flying.

1

Hemoglobin

2

Chlorophyll

3

Plasma

4

Platelets

Hemoglobin in red blood cells binds with oxygen and gives blood its red color.

1

Dog

2

Elephant

3

Butterfly

4

Fish

Butterflies transform from eggs to caterpillars, then to pupae, and finally into adults.

1

Liver

2

Heart

3

Spinal cord

4

Stomach

The spine encases and protects the spinal cord, which sends messages between the brain and body.

1

You absorb water

2

You lose oxygen

3

Your body cools down

4

You get stronger

Sweating helps regulate body temperature by releasing heat as moisture evaporates from the skin.

1

Stem

2

Leaf

3

Ovary

4

Petal

The ovary in a flower contains ovules, which develop into seeds after fertilization.

1

Break down proteins

2

Pump blood

3

Store oxygen

4

Absorb water

The large intestine absorbs water from digested food and stores waste before elimination.

1

Butterfly

2

Caterpillar

3

Egg

4

Chrysalis

Butterflies begin life as tiny eggs laid on leaves by adult females.

1

Hot sand

2

Fast running

3

Sunlight

4

Thick feathers and fat

Penguins have dense feathers and a thick fat layer to insulate against extreme cold.

1

Chicken

2

Bread

3

Apples

4

Milk

Milk is rich in calcium, which is important for growing strong bones and teeth.

1

Control sugar

2

Build muscles

3

Fight infection

4

Carry oxygen

White blood cells defend your body by identifying and destroying harmful viruses and bacteria.

1

Digestive system

2

Respiratory system

3

Circulatory system

4

Skeletal system

The skeletal system includes bones and joints that provide structure and protect internal organs.

1

Wolf

2

Eagle

3

Cow

4

Shark

Cows eat only plants and grasses, making them classic examples of herbivores.

1

To photosynthesize

2

To breathe

3

To absorb water and nutrients

4

To fly

Roots anchor the plant and take in water and nutrients from the soil.

1

Nervous system

2

Respiratory system

3

Digestive system

4

Skeletal system

The respiratory system includes lungs and airways, managing the exchange of oxygen and carbon dioxide.

1

Teeth

2

Eyes

3

Bones

4

Skin

Snakes regularly shed their outer layer of skin to allow for growth and remove parasites.

1

By changing color

2

With chemicals

3

With blinking

4

With speech

Ants use pheromones—chemical signals—to communicate with each other about food or danger.

1

Flight and warmth

2

Swimming

3

Seeing

4

Breathing

Feathers help birds fly, stay dry, and keep warm by trapping heat close to their bodies.

1

Breathing air

2

Sound waves

3

Blocking light

4

Gravity pulling

Shadows are made when something blocks light from reaching the surface behind it.

1

Spider

2

Butterfly

3

Ant

4

Bee

Bees live in hives, where they store honey made from nectar collected from flowers.

1

Store water

2

Make food for the plant

3

Grow roots

4

Attract insects

Leaves perform photosynthesis, converting sunlight into energy the plant can use to grow.

1

Sleeping late

2

Watching TV

3

Exercise

4

Eating candy

Regular exercise strengthens your heart, improves circulation, and helps maintain a healthy weight.

1

Carry oxygen

2

Fight infections

3

Pump blood

4

Digest food

Red blood cells transport oxygen from the lungs to body tissues and bring carbon dioxide back to the lungs.

1

Horse

2

Sheep

3

Cow

4

Lion

Lions eat other animals for food, which classifies them as carnivores.

1

It can heal over time

2

It melts

3

It gets replaced

4

It disappears

Bones are living tissue and can repair themselves with rest, nutrients, and medical help.

1

Small incisors

2

Flat molars

3

Pointy fangs

4

Sharp canines

Herbivores use broad, flat molars to grind and break down tough plant material.

1

Bird

2

Cat

3

Mouse

4

Jellyfish

Jellyfish don’t have a backbone, making them invertebrates unlike cats or birds.

1

Digest food

2

Catch insects

3

Carry water and support the plant

4

Filter light

The stem transports nutrients and water and holds the plant upright for sunlight exposure.

1

Books

2

Food

3

Music

4

Toys

All animals need food to grow, produce energy, and stay alive.

1

Bark

2

Silk

3

Feathers

4

Hair

Spiders use special glands to produce silk, which they use to spin webs for catching prey.

1

Sight

2

Smell

3

Taste

4

Hearing

Your eyes allow you to see letters and words so you can read and understand a book.

1

To sleep more

2

To find food and better weather

3

To avoid other birds

4

To grow bigger

Birds migrate to warmer places with more food when temperatures drop in their usual homes.

1

To hear better

2

To dig holes

3

To walk faster

4

To reach high leaves

Giraffes use their long necks to eat leaves from tall trees other animals can’t reach.

1

Eyes

2

Feet

3

Hands

4

Nose

Your nose detects different scents and sends that information to your brain to identify smells.

1

Makes you taller

2

Protects your heart and lungs

3

Stores food

4

Helps you jump

The rib cage shields the heart and lungs from damage and helps you breathe.

1

Connections between many food chains

2

Oxygen flow

3

Plant parts

4

Growth of animals

A food web displays how different food chains in an ecosystem are linked together.

1

Spider

2

Bee

3

Ant

4

Wasp

Spiders are arachnids and have eight legs, unlike insects that only have six.

1

Strong winds

2

Snow

3

Cold weather

4

Rain and warm temperatures

Rainforests depend on heavy rainfall and constant warmth to support diverse plant and animal life.

1

It turns to sugar in roots

2

It stays in the soil

3

It travels from roots to leaves

4

It floats in the air

Water enters roots and moves through the stem to the leaves for photosynthesis.

1

Your bones grow

2

Your brain shuts off

3

Your eyes get cleaned and moistened

4

You hear better

Blinking spreads tears and clears debris to keep your eyes clean and moist.

1

Taste

2

Smell

3

Sight

4

Touch

Touch receptors in your skin let you detect temperature, pressure, and texture.

1

Butterfly

2

Rabbit

3

Penguin

4

Elephant

Butterflies go through complete metamorphosis, changing through four distinct life stages.

1

Green pigment in plants

2

Animal blood

3

Plant sugar

4

Tree bark

Chlorophyll absorbs sunlight for photosynthesis and gives plants their green color.

1

They hold rocks

2

They’re made of ice

3

They clean water and support life

4

They’re fun to swim in

Wetlands filter water, prevent floods, and provide habitats for many living things.

1

A tall tree

2

A green frog on a leaf

3

A red shirt

4

A glass of water

Camouflage helps animals blend into their surroundings to avoid predators.

1

Digestive system

2

Skeletal system

3

Nervous system

4

Respiratory system

The nervous system sends signals to and from the brain, controlling all body functions and sensations.

1

Insectivore

2

Omnivore

3

Carnivore

4

Herbivore

Omnivores eat both plants and meat, which gives them a wider range of food choices.

1

To eat during winter

2

To keep warm

3

To build nests

4

To hide them from birds

Squirrels bury nuts to ensure they have food when it’s scarce in colder months.

1

Makes them grow

2

Protects from light

3

Helps them fly

4

Keeps them warm

Fur provides insulation to help regulate body temperature in cold weather.

1

A city

2

A single plant

3

A community of living and non-living things

4

A cloud

Ecosystems include all organisms and physical environments in a particular area interacting with each other.

1

Catching insects

2

Changing color

3

Swimming faster

4

Making sounds

Frogs use sticky, extendable tongues to quickly catch insects for food.

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Think you’ve still got your grade school biology smarts? This quiz will test your knowledge of basic biology—organs, ecosystems, animals, and more. Let’s see if you’re sharper than a fifth grader when it comes to science!

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