4th Grade Science Test 2

Question 1

Green plants can make their own food because they contain

Answer 1

chlorophyll

Question 2

If there were no green plants on earth would people and animals be able to live?

Answer 2

No

Question 3

What do plants put into the air for man to breathe?

Answer 3

oxygen

Question 4

green plants make their food by a process called?

Answer 4

photosynthesis

Question 5

When you eat a carrot, you are eating what part of the plant?

Answer 5

the root

Question 6

When you eat broccoli, you are eating what part of a plant?

Answer 6

a flower

Question 7

Every seed contains what?

Answer 7

a new living plant

Question 8

A dandelion is an example of a plant whose seeds are spread by what?

Answer 8

the wind

Question 9

Dormant seeds are: dead or alive?

Answer 9

alive

Question 10

When a seed ____, it sprouts.

Answer 10

germinates

Question 11

Can tomatoes be eaten raw?

Answer 11

yes

Question 12

What is the poison in tobacco called?

Answer 12

nicotine

Question 13

Plants which cannot make their own food are called what?

Answer 13

fungi

Question 14

Most seeds ripen and are carried away from the parent plant in this season.

Answer 14

fall

Question 15

the leaves of the rhubarb plant are ____

Answer 15

poisonous

Question 16

Be able to identify the four parts of a flower from a picture.

Answer 16

petal
stamen
pistil
sepal

Question 17

What is another name for a tree’s stem?

Answer 17

trunk

Question 18

Do a tree’s roots tell its age?

Answer 18

No

Question 19

List three facts about a tree’s roots

Answer 19

Roots anchor trees in the ground.
Roots absorb water and minerals.
Root systems are at least as large as the spread of the crown.

Question 20

Which part of a tree makes the tree’s food and bears fruit?

Answer 20

crown

Question 21

Which of the following trees is a broadleaf tree? fir, hemlock, spruce, elm

Answer 21

elm

Question 22

Which of the following trees is an evergreen tree? elm, spruce, oak, maple

Answer 22

spruce

Question 23

What is the name of the fruit produced by an oak tree?

Answer 23

acorns

Question 24

What name describes trees that lose their leaves in the fall?

Answer 24

deciduous

Question 25

How can you tell the age of a tree?

Answer 25

by counting the annual rings

Question 26

sometimes mistakenly called a yellow daisy

Answer 26

black-eyed Susan

Question 27

has yellow ray flowers and no disk flowers

Answer 27

dandelion

Question 28

a tall plant with flowers that turn to face the sun

Answer 28

sunflower

Question 29

a blue flower whose roots can be ground to make a beverage

Answer 29

chicory

Question 30

any plant that grows where it is not wanted

Answer 30

weed

Question 31

a poisonous plant

Answer 31

poinsettia

Question 32

Know what these birds look like (look in your book and study the pictures).

Answer 32

cardinal
purple finch
mockingbird
scissor-tailed flycatcher

Question 33

List the three main parts of every seed and explain the job each part has or does.

Answer 33

embryo-the new plant
stored food-nourishes the new plant (embryo)
seed coat or covering-protects the new plant (embryo)

Question 34

Know what these flowers look like (look in your book at the pictures and study them).

Answer 34

lady's slipper
western red lily
fireweed
white trillium
wild rose
pitcher plant

Question 35

Know what these flowers look like by studying them in your book.

Answer 35

dandelion
salvia
daisy
goldenrood
iris
marigold
black-eyes Susan
Queen Anne's lace
chrysanthemum
sunflower
cosmos
petunia