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subject area exams > Science > Flashcards

Science Flashcards

1
Q

The most important thing a teacher can do for students in a science class is

A

Encourage inquiry

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2
Q 
Observe
Classify
Predict
Hypothesize 
Investigate are part of what?
A

Scientific method

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3
Q

An element manipulated in the experiment

A

Independent variable

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4
Q

What the scientist is measuring in an experiment

A

Dependent variable

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5
Q

The elements of the experiment that a scientist wants to remain the same and it must be observed carefully

A

Control variable

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6
Q

How do you find out mass of an object

A

Mass=density X volume

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7
Q

How do you find out the volume

A

Mass
Volume = ————————
Density

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8
Q

How do you find out density

A

Mass
Density = ————————
Volume

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9
Q

What are the two types of mixtures

A

Homogeneous and heterogeneous

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10
Q

What is the smallest part of an element called

A

Atom

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11
Q

Negatively charged subatomic particles that circle around an atoms nucleus

A

Electrons

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12
Q

Neutrally charged subatomic particle that are located in the nucleus

A

Neutrons

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13
Q

Positively charged subatomic particles that are located in the atoms nucleus

A

Protons

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14
Q

Smallest particle in a chemical element or compound that has the chemical properties of that element or compound

A

Molecule

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15
Q

Charged element or molecule that has lost or gained one or more electrons

A

Ions

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16
Q

Two or more forms of the same element that have the same number of protons but a different number of neutrons

A

Isotopes

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17
Q

Transfer of heat by the actual movement of the warmed matter

A

Convection

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18
Q

Transfer of heat from particle to particle.

A

Conduction

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19
Q

Formations formed as a result of earths tectonic plates smashing together

A

Mountains

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20
Q

Formations that are formed when magma from within earths upper mantle erupts through the surface

A

Volcanoes

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21
Q

Formations that are formed by weathering and erosion caused by the movement of rivers and tectonic activity

A

Canyons

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22
Q

Divergent

A

Pulling apart

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23
Q

Convergent

A

Coming together

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24
Q

Subduction

A

Sideways and downward movement of the edge of a plate into the mantle beneath another plate

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25
Q

What three categories are rocks mainly grouped into

A

Igneous
sedimentary
Metamorphic

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26
Q

The outermost shell of earth. Aka the crust

A

Lithosphere

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27
Q

All the water on earth in liquid form

A

Hydrosphere

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28
Q

The global sum of all ecosystems and living organisms

A

Biosphere

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29
Q

The masses of frozen water

A

Cryosphere

30
Q

Seasons are the result of earths…

A

Tilt on its axis

31
Q

What does the heliocentric theory believe

A

The sun is at the center of the universe

32
Q

What does the geocentric theory state

A

Believed that earth sat stationary at the center of the universe.

33
Q

When talking about moon illumination

Waxing =
Waning=

A 
Waxing = illuminated in the right side 
Waning= illuminated on the left side
34
Q

The ____ occurs when the moon passes directly behind earth into its shadow

A

Lunar eclipse

35
Q

The ____ happens when the moon moves in front of the sun

A

Solar eclipse

36
Q

A chunk of ice and rock originating outside of the solar system

A

Comet

37
Q

Chunk of rock and metal in orbit in between Mars and Jupiter

A

Asteroids

38
Q

A small asteroid is known as

A

Meteorite

39
Q

Where are aquifers located

A

Beneath earths crust

40
Q

What happens during a solar eclipse

A

The moon moves in front of the sun relative to earth

41
Q

Which planet is closest in size and density to earth

A

Venus

42
Q

Gravity is responsible for

A

Earths orbit

43
Q

This type of rock was originally liquid below earths crust and is forms by lava and magma

A

Igneous

44
Q

This area is located around the outer edge of the Pacific Ocean and is where most volcanic activity occurs

A

Ring of fire

45
Q

What is the densest part of earth

A

Earth core

46
Q

A unicellular organism that lacks a nucleus, mitochondria, or any other membrane bound organelle

A

Prokaryote

47
Q

A multicellular organism that contains a nucleus, mitochondria, and membrane bound organelles

A

Eukaryote

48
Q

Fluid, Permeable outside covering of the cell.

A

Cell wall

49
Q

Water like substance in the cell

A

Cytoplasm

50
Q

What do plant cells have that animal cells do no have

A

Plant cells have chloroplast and cell walls

Animal cells have plasma membranes and no chloroplast

51
Q

The classification of living things was first done by

A

Carl Linnaeus

52
Q

A eukaryote that doesn’t make its own food and that doesn’t contain cells with a cell wall is an

A

Animalia

53
Q

During this stage of mitosis, chromosomes line up in the idle of the cell and spindle fibers attach to the center of the chromosomes

A

Metaphase

54
Q

Sometimes during cell division sex cells contain three copies of chromosomes instead of two. This results in

A

Trisomy

55
Q

A symbolic relationship where both organism benefit is called

A

Mutualism

56
Q

The term used to refer to a plan growing toward light

A

Phototropism

57
Q

What type of lens explains how a microscope works

A

Reflective

58
Q

A student scores in the 75 percentile on a national science test. What type of assessment did the student take

A

Norm referenced

59
Q

Before scientists can perform an experiment on human subjects, scientist must:

A

Obtain informed consent

60
Q

In a lunar eclipse what is the order of the earth sun and moon

A

Sun, earth, moon

61
Q

What causes earths magnetism

A

The inner and outer core rotation

62
Q

What happens when warmer, lighter air at the equator moves toward the cooler air at the poles

A

Convection currents

63
Q

During the scientific revolution, Copernicus introduced this theory where the Earth revolves around the sun

A

Heliocentric

64
Q

In the energy pyramid which section contains the most energy

A

The very bottom

65
Q

The brain and spinal cord make up what system

A

The nervous system

66
Q

There are herbivores that eat the producers in a food web

A

Primary consumers

67
Q

Why is there no vaccine for the common cold

A

The common cold is caused by nearly 250 different viruses

68
Q

Scientist classify living things. What scientist is responsible for this classification system

A

Linnaeus

69
Q

_____ make their own food

A

Autotrophs

70
Q

Before a cell can divide, the DNA must go through this process

A

DNA replication

subject area exams (4 decks)

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