Science Quiz, 9/30

Question 0

the earth’s atmosphere is…

Answer 0

…layers of gasses that surround the earth.

Question 1

Weather is….

Answer 1

the condition of the earth’s atmosphere at a particular time and place.

Question 2

How does the atmosphere help living things?

Answer 2

Contains oxygen.

Question 3

How does the atmosphere affect water?

Answer 3

Keeps most of the earth’s surface warm enough for water to exist as a liquid

Question 4

How does atmosphere protect living things?

Answer 4

from sun’s radiation (UV)

Question 5

what is an atom?

Answer 5

smallest unit of a chemical element that can exist by itself.

Question 6

what would earth be like without atmosphere?

Answer 6

hard to breathe, killed by UV, meteors, life would not be possible.

Question 7

what atoms and molecules make up earth’s atmosphere? (list 4)

Answer 7

nitrogen

oxygen

carbon dioxide

water vapor

Question 8

what is the most abundant gas in the atmosphere? How much?

Answer 8

Nitrogen. 78%

Question 9

Nitrogen is important to living things, but we can’t get it from the air. Bacteria give it to us as what?

Answer 9

nitrates (and we get them from plants)

Question 10

How many oxygen atoms are in an oxygen molecule?

Answer 10

2

Question 11

What is the second most abundant gas in the atmosphere? How much?

Answer 11

oxygen, about 25%

Question 12

What form of oxygen do you smell after a thunderstorm? How many oxygen atoms does it have?

Answer 12

ozone, 3

Question 13

What atoms make up a molecule of carbon dioxide? How many of each?

Answer 13

1 carbon, 2 oxygen

Question 14

What kind of life uses carbon dioxide as food, and what kind of life gives it off as waste?

Answer 14

Plants use it as food, animals give it off as waste.

Question 15

What gas does burning coal and gasoline release?

Answer 15

carbon dioxide

Question 16

What two gases make up 99% of the atmosphere?

Answer 16

nitrogen and oxygen

Question 17

What atoms (and how many) does a water molecule contain?

Answer 17

2 hydrogen and 1 oxygen

Question 18

Up to how much of the atmosphere can be water in a tropical rainforest? (in percent)

Answer 18

5%

Question 19

What is in the atmosphere that is not really a gas or a molecule?

Answer 19

particles (smoke, dust, salt)

Question 20

As you go up in altitude, what do air pressure and air density do?

Answer 20

decrease

Question 21

As you go up in altitude, what does the air temperature do?

Answer 21

colder

Question 22

What layer of the atmosphere do we live in?

Answer 22

Troposphere

Question 23

How thick is the troposphere

Answer 23

9 - 16 kilometers

Question 24

What is the temperature at the top of the troposphere?

Answer 24

-60 C

Question 25

What layer is just above the troposphere?

Answer 25

Stratosphere

Question 26

What special form of oxygen does the stratosphere contain?

Answer 26

ozone

Question 27

What layer is above the stratosphere?

Answer 27

Mesosphere

Question 28

What altitude is the mesosphere?

Answer 28

50 - 80 km

Question 29

What temperature is the mesosphere?

Answer 29

-90 C

Question 30

In what layer do meteors burn up?

Answer 30

Mesosphere

Question 31

What is the top layer where the air is very thin?

Answer 31

Thermosphere

Question 32

Why do thermosphere molecules get so warm?

Answer 32

The sun's heat.

Question 33

What is the lower layer of the thermosphere called?

Answer 33

Ionosphere?

Question 34

What happens to the molecules in the ionosphere?

Answer 34

They become charged and become ions.

Question 35

Where does the Aurora Borealis occur?

Answer 35

Ionosphere

Question 36

What is the top layer of the thermosphere called?

Answer 36

Exosphere

Question 37

What layer contains human made satellites?

Answer 37

Exosphere

Question 38

Who is stinkier, Henry or Freddie?

Answer 38

It's a tie, they are equally stinky.