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STEM 1st Semester Exam Review Flashcards | StudBud
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STEM 1st Semester Exam Review
STEM 1st Semester Exam Review
60 terms
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StudBud Administration
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15 plays
Includes: 1. Vocab Terms 2. Scientific Tools Unit 3. Atmosphere Unit
Flashcards
60 cards
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Practice quiz
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Questions
60
Answers
1
Absolute humidity is measured in milligrams of water per cubic meter.
True
False
2
Why does the equator receive more direct sunlight?
because the sun's rays are nearly horizontal hitting straight on.
because the sun's rays are partially blocked by cirrus clouds
because the sun's rays are partially blocked by the ozone layer
because the sun's rays are nearly vertical hitting straight on.
3
Describes something that happens without any explanation as to why it happens. Often mathematical.
Law
Operational Science
Measured Data
Model
4
Which sphere is used to bounce radio waves across the globe allowing communication without satellites?
thermosphere
stratosphere
ionosphere
mesosphere
5
Proven, can't change, and describes what will happen
Scientific Law
Scientific Method
Scientific Goals
Scientific Theory
6
The Creation Mandate is God's
command (Gen 1:28) to manage the earth wisely & use it for His glory
way of describing an observation using words.
simple, useful, workable representation of something in the world.
explanation for the starting point of a scientific problem.
7
What is Dew Point ?
The temperature at which condensation begins.
When a rainbow is formed.
When water changes into clouds.
8
Two defining characteristics of the exosphere are it has very little gas and is almost outer space.
True
False
9
Closest to ground, extends 9-17 km above surface, temp. decreases w/ altitude, contains all life, all weather happens
stratosphere
mesosphere
troposphere
exosphere
10
What is wind chill factor?
Your toes and fingers freeze
a decrease in air temperature felt by the skin
the condition of the weather at a certain temperature.
When you get cold
11
What is one example of Convection:
Heating of ground when the temperature rises in the air.
Heating of the atmosphere when heat bounces off the oceans.
Heating of atmosphere when heat bounces off the ground.
Heating of the ground when the temperatures in the ocean increase.
12
Uppermost boundary of the troposphere
tropo-primary
tropopause
upper-troposphere
tropomajor
13
If a hypothesis is not supported by data collected in an experiment, you should not worry about that and use it anyway.
True
False
14
Jet streams & other winds formed, ozone layer, extends 50km and up, temp. increases w/ altitude, airplanes fly here
mesosphere
stratosphere
thermosphere
exosphere
15
The movement of thermal energy through a medium. Transfer of thermal energy through direct contact.
Analyisization
Convection
Radiation
Conduction
16
What data uses instruments to collect, always has numbers and is more objective?
Measured data
Responding data
Descriptive data
Manipulative data
17
Humidity is a measure of the amount of water vapor in the air.
False
True
18
The magnetosphere shields us from solar storms that could be deadly if they hit the earth.
True
False
19
Why are prefixes used in the metric system?
Scientists, from back in the day, were lazy
To avoid very small or very large numbers
Looks better
More precise
20
What biblical event would have changed the composition of the atmosphere?
Creation
The Flood
The Fall of Man
Building the Ark
21
Why don't gases in the heterosphere blend?
There is little to no wind.
They are not compatible.
They DO blend.
There is too much wind.
22
The investigation of events that happened in the present. Historical science depends heavily on a scientist worldview.
Hypothesis
Descriptive data
Theory
Historical Science
23
The emission of electromagnetic waves such as with sunlight or heat lamps. A method to transfer thermal energy.
Convection
Radiation
Anticyclone
Conduction
24
Protects life on earth by retaining sufficient energy to maintain liquid water.
Greenhouse Gases
Weather
Greenhouse Effect
Jet Stream
25
The variable that is intentionally changed is called:
an observable variable
a responding variable
a manipulated variable
a quantitative variable
26
A narrow belt of strong winds that blow in the upper troposphere.
Wind
Jet Stream
Greenhouse Effect
Radiation
27
God made our atmosphere on what day?
2
6
4
1
28
Why do the poles receive less energy from the sun?
they don't receive less energy, they receive more energy!
because the poles are more cloudy than the equator.
because they receive more slanted rays from the sun.
because they receive less slanted rays from the sun.
29
Another name for a responding variable is:
Accurate variable
Independent variable
Derived variable
Dependent variable
30
What is another name for a manipulated variable?
independent variable
dependent variable
measured variable
quantitative variable
31
Temperature decreases with altitude, uniform mix of gases, has winds are all characteristics of:
mesosphere
exosphere
stratosphere
thermosphere
32
How far out does the magnetosphere extend?
3 x 103 km above the surface
Hundreds of Km above the surface
Thousands of Km above the surface.
Millions of Km above the surface
33
Natural atmospheric gases such as water vapor, carbon dioxide and methane that warm the atmosphere.
Greenhouse Gases
Greenhouse Effect
Convection
Conduction
34
When testing a theory, how many manipulated variables can you have?
1
2
3
4
35
Plan used for gathering, organizing and communicating information.
Scientific Goals
Scientific Law
Scientific Theory
Scientific Method
36
The ionosphere is formed when the sun's rays & rays from space break up gas molecules into atoms.
True
False
37
Uniform mix of gases it includes troposphere, stratosphere and mesosphere:
heterosphere
homosphere
38
Relative humidity = ratio of water vapor in air to the maximum that could be vaporized at current temperatures.
False
True
39
The gases that surround Earth.
Radiation
Air Mass
Pressure gradient
Atmosphere
40
The ozone has what "super power"?
Helps us get a great tan when the sun is shining
Shields us from solar storms that could be deadly
Can bounce radio waves across the globe so satellites can communicate
Shields us from most of sun's harmful UV light
41
What is another name for Measured Data?
Quantitative Data
Qualitative Data
Independent Data
Dependent Data
42
Measured data is data that usually consists of numbers combined with units.
True
False
43
Where is the ionosphere located?
exosphere
thermosphere
stratosphere
mesosphere
44
How much of the atmosphere near the earth's surface is nitrogen?
2/3 of the atmosphere
2/5 of the atmosphere
1/2 of the atmosphere
3/4 of the atmosphere
45
Atmospheric Pressure is the weight of gases in the atmosphere.
False
True
46
Earth's atmosphere is made up of
21% Carbon, 78% Hydrogen & 1% Other
21% Oxygen, 78% Hydrogen & 1% Other
78% Oxygen, 21% Hydrogen & 1% Other
21% Oxygen, 78% Hydrogen & 1% Carbon
47
A simple, useful, workable representation of something in the world.
Measured Data
Atmosphere
Model
Theory
48
As solar energy reaches our atmosphere (but not the surface of the earth) it is absorbed or reflected.
False
True
49
Support for a conclusion comes from an experiment's data.
True
False
50
Wind is moving air traveling from regions of low pressure to those of high pressure.
True
False
51
Other gases found in the atmosphere are:
helium and hydrogen
argon and carbon dioxide
all of the above
52
Oxygen levels increase dramatically and kill off anaerobic organisms is known as
the 'old earth' story
the oxygen catastrophe
the 'young earth' story
the atmospheric catastrophe
53
The study of presently occurring science events.
Theory
Historical Science
Measured data
Operational Science
54
An initial explanation for a scientific problem. The starting point for testing the validity of an idea.
Model
Creation Mandate
Convection
Hypothesis
55
Data that describes an observation using words.
Historical Science
Descriptive Data
Hypothesis
Law
56
Descriptive data is
data describing an observation using words
data used for analysis
quantitative data
data collected using instruments
57
One goal of any scientific method is to better understand an unobservable event.
False
True
58
Last layer of the atmosphere, extends to 500km, space station orbits here, high temp., has ionosphere
thermosphere
exosphere
stratosphere
mesosphere
59
What does STEM stand for?
Science, Technology, Engineering and Math
Space, Technology, Environment and Methods
Science, Technology, Environment and Math
Space, Tectonics, Engineering and Math
60
Not proven, can change, and explains the laws.
Scientific Law
Scientific Method
Scientific Theory
Scientific Goals
