6th Grade Science Test 1

Question 1

the chemical process by which a plant produces food

Answer 1

photosynthesis

Question 2

any grown response of a plant to a condition in its environment

Answer 2

tropism

Question 3

the transfer of pollen from the stamen to the pistil

Answer 3

pollination

Question 4

the process in which an egg stored inside an ovule unites with a sperm cell from a grain of pollen

Answer 4

fertilization

Question 5

the pigment that gives a plant its green color

Answer 5

chlorophyll

Question 6

a colorful leaf surrounding certain flowers such as the dogwood and the poinsettia

Answer 6

bract

Question 7

an underwater plant with hollow, bladderlike leaves filled with water that are used to trap insects

Answer 7

bladderwort

Question 8

the plant with hinged leaves that close shut like the jaws of a steel trap

Answer 8

Venus’s-flytrap

Question 9

the bright colors and honey-scented nectar of this plant lure the insects that drown in its leaves

Answer 9

pitcher plant

Question 10

the sticky, glistening dew drops on this plant are the bait that attracts insects

Answer 10

sundew

Question 11

the pores on the underside of the leaf

Answer 11

stomata

Question 12

the part of the plant that grows below the ground

Answer 12

root system

Question 13

the waxy substance that coats the leaf

Answer 13

cuticle

Question 14

the structures that allow the stomata to open and close

Answer 14

guard cells

Question 15

the tough, fibrous material used to form the cell walls of plants

Answer 15

cellulose

Question 16

“packages” of chlorophyll found in leaf cells

Answer 16

chloroplasts

Question 17

a particularly deep main root

Answer 17

taproot

Question 18

the layer of thick, protective cells at the tip of the root

Answer 18

root cap

Question 19

plants store sugar in their roots in the form of

Answer 19

starch

Question 20

an especially large vein running up the middle of many leaves

Answer 20

midrib

Question 21

the part of the seed that is a miniature undeveloped plant

Answer 21

embryo

Question 22

the noticeable part of the flower that attracts bees

Answer 22

petal

Question 23

geotropism is a plant’s response to

Answer 23

gravity

Question 24

a person who studies plants

Answer 24

botanist

Question 25

wheat, rice, and corn are examples of what kind of grasses

Answer 25

cereal

Question 26

the part of the plant that is above ground

Answer 26

shoot system

Question 27

Spanish moss is a type of

Answer 27

epiphyte

Question 28

the ovary of the plant develops into the

Answer 28

fruit

Question 29

the main function of the ___ is to make food for the plant

Answer 29

leaf

Question 30

the main function of the ____ is to absorb water and minerals from the ground

Answer 30

roots

Question 31

an underground storehouse made with layers of thick, fleshy leaves that surround a very short stem

Answer 31

bulb

Question 32

a seed that is alive but inactive is

Answer 32

dormant

Question 33

Be able to identify the six parts of a flower from a picture

Answer 33

sepal
pistil
stamen
petal
ovule
ovary

Question 34

Where does photosynthesis occur?

Answer 34

in the leaves of the plant

Question 35

two conditions needed for a seed to sprout

Answer 35

moisture and warmth

Question 36

Be able to identify flowers from these families by studying pictures and characeristics

Answer 36

lily family
pea family
grass family
rose family
composite family