Science Midterm

Front 1

Heat is measured in what unit? _________________

Back 1

joules

Front 2

In an ocean, where does water that has seeped through cracks in the ocean floor, and
is heated by magma rise again? __________________________

Back 2

hydrothermal vents

Front 3

The skill you use when gathering information with your five senses is
called_____________________________?

Back 3

observation

Front 4

In what ocean zone are most of the major fishing areas? ______________

Back 4

neretic zones

Front 5

What is a light year? ___________________________________________

Back 5

Distance light travels in 1 year

Front 6

When waves combine to make a wave with a larger amplitude what kind of interference
is involved? _________________________________

Back 6

Constructive interference

Front 7

Coherent light is produced by a _____________________.

Back 7

laser

Front 8

In what 3 ways are stars classified? ________________, _________________,
________________________

Back 8

size, brightness, temperature

Front 9

What waves have the highest frequency in the electromagnetic spectrum?
__________________________

Back 9

gamma rays

Front 10

When light passes from air into water it does what?_____________________

Back 10

slows down

Front 11

Seismic waves travel in _____________________direction(s) from their point of origin.

Back 11

all

Front 12

. The source of most ocean pollution is ___________________.

Back 12

the land

Front 13

________________________is when no more energy can be removed from matter.

Back 13

absolute zero

Front 14

. _____________________is when there is the least amount of difference between high
and low tides.

Back 14

neap tide

Front 15

_______________________electromagnetic waves have the longest wavelengths and
lowest frequencies.

Back 15

radio waves

Front 16

Cell phones use __________________waves to transmit and receive signals.

Back 16

microwaves

Front 17

What is the most important safety rule to follow n all lab experiments?
________________________________________________________

Back 17

follow teachers directions

Front 18

___________________________is the transfer of energy by electromagnetic waves

Back 18

radiation

Front 19

__________________________ is the total kinetic energy of all the particles in a
substance.

Back 19

thermal energy

Front 20

The properties of the medium through which sound travels affects the ______________
of sound.

Back 20

speed

Front 21

Chuck Yeager chose his location to break the sound barrier for what 2 reasons?
Temperature is _______________ and so speed of sound is ______________.

Back 21

lower, lower

Front 22

When a star becomes dimmer at regular intervals, this is an indication their might be
a(n) __________________________________________.

Back 22

.eclipsing binary stars

Front 23

In salt marshes, a major plant is ____________________.

Back 23

cord grass.

Front 24

___________________________is the true edge of a continent.

Back 24

continental slope

Front 25

_________________________________ is the process in which matter expands when
it is heated.

Back 25

thermal expansion

Front 26

The variable that changes as a result of changes in the manipulated variable is called the
_________________ variable.

Back 26

responding

Front 27

The more particles a substance has at a given temperature, the more _______________
energy it has.

Back 27

thermal

Front 28

The _____________________ __________________ is the continuous range of mountains
that winds around the Earth.

Back 28

mid-ocean ridge

Front 29

What is the correct path of sound waves through the ear? _____ __________,
________________, __________________, ___________.

Back 29

ear canal, eardrum, stirrup, cochlea

Front 30

____________________ can be used for locating pockets of valuable resources underground
as well as detecting earthquakes.

Back 30

Seismograph

Front 31

An _________________ is a material that does not conduct heat well.

Back 31

insulator

Front 32

When parallel rays of light hit a rough surface they experience _________ reflection.

Back 32

diffuse

Front 33

You want to know if the amount of protein n a female rat’s diet affects the average birth
weight of her individual offspring. What would be the responding variable? ______________
____________ ___________.

Back 33

average birth weight

Front 34

_______________________ is the bending of waves as a result of a change in speed.

Back 34

refraction

Front 35

How are elliptical galaxies and spiral galaxies different? _____________ galaxies have little gas
and dust.

Back 35

elliptical

Front 36

What type of waves do scientists on the opposite side of the earth during an earthquake detect?
___ ___________.

Back 36

P waves

Front 37

True or false: UV rays help your body produce vitamin D.

Back 37

true

Front 38

If a person ha eyeballs that are a little too long, they are _____________________.

Back 38

nearsighted

Front 39

The _______________ zone is the only part of the open ocean that receives enough sunlight to
support algae growth.

Back 39

surface

Front 40

Sound waves do/do not travel through outer space.

Back 40

do not

Front 41

During a new moon and full moon, there are ______________tides.

Back 41

spring

Front 42

___________________makes it possible to hear sounds around a corner.

Back 42

diffraction

Front 43

Because of total ___________ ____________, a laser beam can travel through an optical fiber

Back 43

internal reflection

Front 44

Is a bicycle leaning against a wall an example of work? Yes/no

Back 44

no

Front 45

a star is born when ___________________.

Back 45

nuclear fusion starts

Front 46

Over fishing is when fish are harvested at a rate ________ than they can ________________.

Back 46

faster, reproduce

Front 47

Chemical nutrients from the Earth’s interior support organisms that live around
___________________ vents in the ocean.

Back 47

hydrothermal

Front 48

The __________ _________ telescope collects visible light from above the Earth’s atmosphere.

Back 48

Hubble Space

Front 49

_________________ waves cannot travel through liquids.

Back 49

Secondary

Front 50

An object at rest will remain at rest unless a force is exerted on it is Newton’s ________ law

Back 50

first

Front 51

Waves need a _____________ to travel through.

Back 51

medium

Front 52

EMS waves are about ____________________times faster than sound waves.

Back 52

one million

Front 53

___________________ help astronomers determine the temperature of a star.

Back 53

spectrographs

Front 54

_______________ are created when a source of energy causes a medium to vibrate.

Back 54

waves

Front 55

________________ form the base of most open-ocean food webs.

Back 55

plankton

Front 56

Speed = wavelength multiplied by _______________.

Back 56

frequency

Front 57

All light is reflected when white light strikes a _______________ object.

Back 57

black

Front 58

A concave lens produces what kind of image (s)? _________________

Back 58

virtual

Front 59

The ____________ contains rods and cones.

Back 59

retina

Front 60

Raising a sail by pulling down on a rope is using a machine that ________________ _____________.

Back 60

changes direction

Front 61

Stars become _____ ________ or ______________ when they first start to run out of fuel.

Back 61

red giants or supernovas

Front 62

______________, ________________, _____________ are the primary colors of light.

Back 62

red, green and blue

Front 63

A ____________________ must be testable by observation or experiment.

Back 63

hypothesis

Front 64

A star’s brightness depends on it’s _______________ and ________________

Back 64

size and temperature

Front 65

______________________ is the average kinetic energy of the individual particles in an object.

Back 65

temperature

Front 66

__________________ ______________ are the remains of stars that were more than 40 times the
mass of the sun.

Back 66

black holes

Front 67

All electromagnetic waves have the same ___________________.

Back 67

speed

Front 68

_______________________ is the bending of light rays as the enter a new medium at an angle.

Back 68

refraction

Front 69

a ________________ ___________ is well tested and explains a wide range of observations.

Back 69

scientific theory

Front 70

What kind of reflection occurs when parallel rays of light hit a smooth surface? ______________

Back 70

regular

Front 71

A stars distance from earth is determined by a method called _______________________.

Back 71

parallax

Front 72

The __________________ ________________ is a nearly flat region of the ocean floor.

Back 72

abyssal plain

Front 73

Heat is transferred by ________________ when the heat is transferred from one particle of matter to
another, without the movement of the object itself.

Back 73

conduction

Front 74

What kind of galaxy is the Milky Way? _________________

Back 74

spiral galaxy

Front 75

A tidal power plant produces energy using the movement of water between ______________ and
___________ ___________________.

Back 75

high, low tides

Front 76

Organisms that live on the ocean floor are called _______________

Back 76

benthos

Front 77

In a controlled experiment, a scientist is studying how long it takes pea plants growing in different
soil types to develop flower buds. What is the manipulated variable? __________________________

Back 77

type of soil

Front 78

True or false: Lobsters, clams and sea stars are examples of nekton.

Back 78

false

Front 79

What is the first thing you should do when handed information for an experiment?
______________________________________

Back 79

read the procedure

Front 80

What 3 ways do machines make work easier? They change the _______________,
_____________, or amount of _________________ exerted.

Back 80

direction, distance, force

Front 81

Reflecting telescopes have a (n)____________ and refracting telescopes have a (n)
____________ ________________

Back 81

mirror, objective lens

Front 82

A ___________________ isn’t needed for electromagnetic waves to transfer energy.

Back 82

medium

Front 83

A possible explanation for observations is called a _________________.

Back 83

hypothesis

Front 84

The interaction between the earth, moon and sun causes _______________.

Back 84

tide

Front 85

What type of mirror curves inward? A _______________ mirror.

Back 85

concave

Front 86

A _______________ formed the solar system.

Back 86

nebula

Front 87

Ideally, a machine would have a _______% efficiency.

Back 87

100

Front 88

A _________is a deep canyon in the ocean floor.

Back 88

trench

Front 89

How many days doesit take the moon to move through it’s phases? ________days

Back 89

29.5

Front 90

The _____ ________ are the spheres that lost most of their gases when the solar system formed.

Back 90

inner planet

Front 91

_________________ is the rate at which the velocity of an object changes.

Back 91

acceleration

Front 92

Facts and other evidence learned through observation are called __________.

Back 92

data

Front 93

A ___________________machine uses two or more simple machines

Back 93

compound

Front 94

Heat transfer occurs only from __________ to __________ objects

Back 94

warm, colder

Front 95

The pitch appears to increase when a sound source moves __________ a listener.

Back 95

toward

Front 96

The ________ ____is the area of the ocean that extends outward from the edge of the continent.

Back 96

continental shelf

Front 97

When you identify a trend or see a pattern in a graph your using what skill? _________ _______

Back 97

interpreting data

Front 98

Brackish water is partly ________ and partly _______.

Back 98

fresh, salty

Front 99

What causes an object to accelerate? _____________________

Back 99

force exerted on it

Front 100

During a change in state, the addition or loss of thermal energy changes the
_________________ of the particles.

Back 100

arrangement