chapter 9 science

Question 1

the process of green plants using energy from sunlight to change water and carbon dioxide into sugars for food and oxygen

Answer 1

photosynthesis

Question 2

you see one half of the moons surface

Answer 2

first quarter

Question 3

over one half of its sunlight side of the moon can be seen from earth

Answer 3

gibbous phase

Question 4

you can see all of the moons light

Answer 4

full moon

Question 5

another crescent moon

Answer 5

third quarter

Question 6

when the moon travels through the earth’s shadow

Answer 6

lunar eclipse

Question 7

to grow larger

Answer 7

waxes

Question 8

grows smaller

Answer 8

wanes

Question 9

name the inner planets

Answer 9

1. mercury
2. venus
3. earth
4. mars

Question 10

name the outer planets

Answer 10

1. jupiter
2. saturn
3. uranus
4. neptune

Question 11

the closest planet to the sun

Answer 11

mercury

Question 12

the brightest planet

Answer 12

venus

Question 13

which planets are called twin planets because they are the same size

Answer 13

earth and venus

Question 14

the only planet in the solar system that is suitable for life

Answer 14

earth

Question 15

called the red planet

Answer 15

mars

Question 16

largest planet in the solar system and contains the great red spot

Answer 16

jupiter

Question 17

second largest planet and has 7 rings around it at its equator

Answer 17

saturn

Question 18

third largest planet in our solar system and is tipped over on its side

Answer 18

uranus

Question 19

the farthest planet from the sun and has a moon called triton

Answer 19

neptune

Question 20

layer of gasses surrounding a planet or moon

Answer 20

atmosphere

Question 21

mixture of invisible gassses

Answer 21

air

Question 22

what happens when air is heated

Answer 22

molecules move around quickly and push each other together

Question 23

what does warm air do

Answer 23

expands and takes up more space

Question 24

what happens when the air is cooled

Answer 24

air contracts and molecules move more slowly and huddle closer together

Question 25

what are air molecules made up of

Answer 25

78% nitrogen and 21% oxygen

Question 26

name the things air does for us

Answer 26

1. helps us breathe 2. helps us hear 3. gives us fresh water 4. helps warm the earth 5. helps protect the earth

Question 27

the total weight of air on some particular place on earth

Answer 27

air pressure

Question 28

because it holds almost all of the water vapor in the atmosphere the _______ is the exclusive home of water

Answer 28

troposphere

Question 29

name the layers of the atmosphere

Answer 29

1. troposphere 2. stratosphere 3. mesosphere 4. thermosphere 5. exosphere

Question 30

layer of the atmosphere closest to the earth and home of the weather

Answer 30

troposphere

Question 31

the second lowest layer of the atmosphere

Answer 31

stratosphere

Question 32

the third lowest layer of the atmosphere

Answer 32

mesosphere

Question 33

the fourth lowest layer of the atmosphere

Answer 33

thermosphere

Question 34

the top most layer of the atmosphere

Answer 34

exosphere

Question 35

the wide belt of ozone gas which protect the earth from the sun

Answer 35

ozone layer

Question 36

burning meteoroids are called ____ or ____

Answer 36

meteors or shooting stars

Question 37

made of subatomic particle speeds through space at one million miles per hour

Answer 37

solar wind

Question 38

what are the northern lights called

Answer 38

aurora borealis

Question 39

the southern lights are called

Answer 39

aurora australis