Discover the Wonderful World of Plants: Interactive Learning Quizzes for Third Graders

Question 1

Which plant has leaves that grow in straight lines?

Accepted Answer

Grass

Answer

Tree

Answer

Fern

Answer

Rose

Question 2

What is the name of the process where a seed sprouts and develops into a new plant?

Accepted Answer

Germination

Answer

Pollination

Answer

Photosynthesis

Answer

Transpiration

Question 3

Which of these is NOT a benefit of plants to humans?

Accepted Answer

Causing allergies

Answer

Providing food

Answer

Releasing oxygen into the air

Answer

Purifying the air

Question 4

What is the largest category used to classify plants?

Accepted Answer

Kingdom

Answer

Phylum

Answer

Class

Answer

Family

Question 5

What is the name of the green substance in plants that helps absorb sunlight?

Accepted Answer

Chlorophyll

Answer

Glucose

Answer

Starch

Answer

Oxygen

Question 6

What is the green stuff inside leaves that helps plants make their own food?

Accepted Answer

Chlorophyll

Answer

Carrots

Answer

Ants

Answer

Oxygen

Question 7

Which of these is NOT a stage in a plant's life?

Accepted Answer

Walk

Answer

Seed

Answer

Sprout

Answer

Flowering

Question 8

What helps move water and food around inside a plant?

Accepted Answer

Xylem

Answer

Veins

Answer

Tubes

Answer

Roots

Question 9

Which of these helps plants survive in hot areas?

Accepted Answer

Thick, waxy leaves

Answer

Lots of water

Answer

Long, thin stems

Answer

Small flowers

Question 10

What do bees and butterflies do for plants?

Accepted Answer

Carry pollen

Answer

Water them

Answer

Protect them

Answer

Make them grow taller

Question 11

Where do plants like to grow best?

Accepted Answer

Warm and sunny

Answer

Hot and dry

Answer

Cold and wet

Answer

Dark and cold

Question 12

Which part of a plant is NOT involved in photosynthesis?

Accepted Answer

Roots

Answer

Stem

Answer

Leaves

Answer

Flowers

Question 13

What is the part of a seed that contains the tiny plant that will grow into a new plant?

Accepted Answer

Embryo

Answer

Endosperm

Answer

Cotyledon

Answer

Radicle

Question 14

What gas do the leaves of a plant absorb from the air during photosynthesis?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Nitrogen

Answer

Water vapor

Question 15

Which of these plants belongs to the group known as monocots?

Accepted Answer

Lily

Answer

Rose

Answer

Sunflower

Answer

Oak

Question 16

What is the primary function of the roots of a plant?

Accepted Answer

To absorb water and nutrients from the soil

Answer

To store food for the plant

Answer

To support the plant and keep it upright

Answer

To produce flowers and seeds

Question 17

Which type of plant does NOT produce seeds?

Accepted Answer

Fern

Answer

Daisy

Answer

Tomato

Answer

Pine tree

Question 18

What is the name of the green substance in plants that helps them capture sunlight for photosynthesis?

Accepted Answer

Chlorophyll

Answer

Carotenoid

Answer

Melanin

Answer

Anthocyanin

Question 19

Plants need ______, ______ and ______ to make their own food.

Accepted Answer

Water, Sunlight, Air

Answer

Soil, Sunlight, Water

Answer

Nutrients, Oxygen, Air

Answer

Light, Water, Nutrients

Question 20

Which part of the plant helps absorb water and nutrients from the soil?

Accepted Answer

Roots

Answer

Leaves

Answer

Stem

Answer

Flowers

Question 21

What is the green stuff inside plants that helps them make food called?

Accepted Answer

Chlorophyll

Answer

Carrots

Answer

Sugar

Answer

Oxygen

Question 22

Which of these plants does NOT have flowers?

Accepted Answer

Fern

Answer

Rose

Answer

Daisy

Answer

Sunflower

Question 23

What do the tiny holes on leaves, called stomata, do?

Accepted Answer

Let water and air in and out

Answer

Help the leaf stand up

Answer

Store food for the plant

Answer

Attract animals to the plant

Question 24

What part of the plant absorbs water and nutrients from the soil?

Accepted Answer

Roots

Answer

Leaves

Answer

Stems

Question 25

Which of the following is NOT a part of a plant's body?

Accepted Answer

Wings

Answer

Stem

Answer

Leaves

Answer

Roots

Question 26

What is the green-colored substance in leaves that helps plants make their own food?

Accepted Answer

Chlorophyll

Answer

Carotenoids

Answer

Anthocyanins

Answer

Tannins

Question 27

How do plants make their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Digestion

Answer

Transpiration

Question 28

Which of these is a way that non-flowering plants reproduce?

Accepted Answer

Making spores

Answer

Producing seeds

Answer

Having flowers

Answer

Growing tall

Question 29

Which of the following is an example of a plant that has one seed leaf?

Accepted Answer

Grass

Answer

Rose

Answer

Oak

Answer

Pine

Question 30

What do bees and other insects do to help plants make seeds?

Accepted Answer

Move pollen from one flower to another

Answer

Produce seeds

Answer

Capture sunlight

Answer

Provide water

Question 31

Which part of the plant holds it up, carries water, and brings food to the rest of the plant?

Accepted Answer

Stem

Answer

Leaves

Answer

Roots

Answer

Flowers

Question 32

Which stage is NOT part of a plant's life cycle?

Accepted Answer

Harvesting

Answer

Seed

Answer

Flowering

Question 33

What is NOT a basic part of a plant?

Accepted Answer

Wings

Answer

Roots

Answer

Stems

Answer

Leaves

Question 34

What green substance in plants helps them use sunlight to make their own food?

Accepted Answer

Chlorophyll

Answer

Oxygen

Answer

Water

Answer

Sugar

Question 35

What process do plants use sunlight, air, and water to create their own food?

Accepted Answer

Photosynthesis

Answer

Digestion

Answer

Respiration

Answer

Evaporation

Question 36

Which part of the plant takes in water and nutrients from the soil?

Accepted Answer

Roots

Answer

Stems

Answer

Leaves

Answer

Flowers

Question 37

What is the name of the young plant that grows from a seed?

Accepted Answer

Sprout

Answer

Branch

Answer

Bud

Answer

Fruit

Question 38

Which of the following is NOT a type of non-flowering plant?

Accepted Answer

Daisy

Answer

Fern

Answer

Moss

Answer

Conifer

Question 39

What is the process by which plants reproduce and create new plants?

Accepted Answer

Pollination

Answer

Germination

Answer

Transpiration

Answer

Digestion

Question 40

Which part of the plant takes in water and nutrients from the ground?

Accepted Answer

Roots

Answer

Stem

Answer

Leaves

Answer

Flowers

Question 41

What are the tiny green parts on leaves that make food using sunlight?

Accepted Answer

Chloroplasts

Answer

Stomata

Answer

Veins

Answer

Palisade cells

Question 42

Which of these is NOT a way that seeds can travel to new places?

Accepted Answer

Through self-pollination

Answer

By wind

Answer

With the help of animals

Answer

By falling to the ground due to gravity

Question 43

What are the four main steps in the life cycle of a plant?

Accepted Answer

Germination, growth, reproduction, death

Answer

Reproduction, germination, growth, death

Answer

Death, growth, germination, reproduction

Answer

Germination, death, reproduction, growth

Question 44

What is the purpose of pollination in plants?

Accepted Answer

To make seeds

Answer

To provide food

Answer

To move oxygen

Answer

To capture sunlight

Question 45

What is the difference between a tree that loses its leaves in winter and a tree that keeps its leaves?

Accepted Answer

Deciduous trees lose their leaves in winter, while evergreen trees do not.

Answer

Evergreen trees grow taller than deciduous trees.

Answer

Deciduous trees grow in colder areas, while evergreen trees grow in warmer areas.

Answer

Evergreen trees have wider leaves than deciduous trees.

Question 46

What is the process by which plants use light, carbon dioxide, and water to create their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Transpiration

Answer

Pollination

Question 47

Which part of the flower contains the pollen that fertilizes the plant's eggs?

Accepted Answer

Stamen

Answer

Pistil

Answer

Petal

Answer

Sepal

Question 48

What is the word for the process by which water evaporates from plant leaves?

Accepted Answer

Transpiration

Answer

Condensation

Answer

Precipitation

Answer

Respiration

Question 49

Which of these is NOT a part of a plant?

Accepted Answer

Fur

Answer

Roots

Answer

Stem

Answer

Leaves

Question 50

What is the green stuff in leaves that helps them make food called?

Accepted Answer

Chlorophyll

Answer

Carotenoids

Answer

Anthocyanins

Answer

Flavonoids

Question 51

Which part of the plant takes in water and nutrients from the soil?

Accepted Answer

Roots

Answer

Stem

Answer

Leaves

Answer

Flowers

Question 52

What is the process where plants use sunlight, carbon dioxide, and water to create their own food called?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Transpiration

Answer

Germination

Question 53

Which of these is NOT a type of plant?

Accepted Answer

Animals

Answer

Trees

Answer

Shrubs

Answer

Herbs

Question 54

Which of these plants eats insects?

Accepted Answer

Venus flytrap

Answer

Sunflower

Answer

Rose

Answer

Fern