Benchmarks

Question 0

A possible explanation for a set of observations to answer a scientific question is called a ___________.

Answer 0

Hypothesis

Question 1

Using one or more of your senses to gather infor mation is called ________.

Answer 1

Observing

Question 2

Making a forecast of what will happen in the future based on past experience or evidence is called __________.

Answer 2

Predicting

Question 3

A summary of what you have learned from a scientific experiment is called a _____________.

Answer 3

Conclusion

Question 4

The most important lab safety role is to always follow your __________ instructions and your _________ directions exactly.

Answer 4

Teachers, text book’s

Question 5

During an experiment if you purposely change the temperature to test a hypothesis the temperature is called the _______ variable.

Answer 5

Manipulated

Question 6

The factor that may change in response to the manipulated variable is called the ________ variable.

Answer 6

Responding

Question 7

Facts, figures, and other evidence gathered through observations is called _________.

Answer 7

Data

Question 8

The ozone layer protects living things on Earth from _______ ________.

Answer 8

Ultraviolet radiation

Question 9

Which layer of the atmosphere contains almost all of the mass of the atmosphere?

Answer 9

Troposphere

Question 10

Instruments used to measure air pressure are called __________.

Answer 10

Barometers

Question 11

Air has pressure because air has_____.

Answer 11

Mass

Question 12

Name four reasons Earth’s atmosphere is important to living things.

Answer 12

1. it protects us from extreme heat and cold
2. it protects us from harmful ultraviolet rays
3. it protects us from meteors
4. it provides all of the gas is that living things need to survive

Question 13

Which layer of the atmosphere protects capital Earth’s surface from being hit by most meteoroids?

Answer 13

Mesosphere

Question 14

As you rise upwards in the atmosphere, air pressure_________.

Answer 14

Decreases

Question 15

When climbing a high mountain, you get out of breath easily because there is less_______and each cubic meter of______.

Answer 15

Oxygen, air

Question 16

From Earth to space, the main layers in our atmosphere are:

Answer 16

Troposphere
Stratosphere
Mesosphere
Thermosphere

Question 17

The two most abundant and gases in the atmosphere are_______ are ________.

Answer 17

Nitrogen and oxygen

Question 18

The result of weight of a column of air pushing down an area is known as______.

Answer 18

Air pressure

Question 19

The layer of our atmosphere in which weather occurs is the _________.

Answer 19

Troposphere

Question 20

The amount of mass and I get in volume of air is known as _______.

Answer 20

Density

Question 21

What is the first layer of our atmosphere an astronaut passes through during reentry from space?

Answer 21

Thermosphere

Question 22

And aneroid barometer is different from a mercury barometer in that it does not contain a _______.

Answer 22

Liquid

Question 23

The ozone layer is found in the ________.

Answer 23

Stratosphere

Question 24

The layer of gases that surrounds earth is our__________.

Answer 24

Atmosphere

Question 25

The condition of Earth’s atmosphere at a particular time and place is called ___________.

Answer 25

Weather

Question 26

As altitude increases, the percent of oxygen in the atmosphere _________ ________ __________.

Answer 26

Stays the same

Question 27

Layerd clouds that often cover much of the sky and are a dull gray color are called ___________ clouds.

Answer 27

Stratus

Question 28

Wind speed is measured by a(n) _________.

Answer 28

Anamometer

Question 29

Global winds generally blow from __________ directions over ________ distances.

Answer 29

Specific, long

Question 30

Very high, feathery clouds are called________ clouds.

Answer 30

Cirrus

Question 31

The prevailing westerly, the major wind else over the continental United States, generally push air masses from_________to_________.

Answer 31

West to east

Question 32

Wins are caused by differences in ____ ___________.

Answer 32

Air pressere