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Finals > Science > Flashcards

Science Flashcards

1
Q

Covenant bond

A

2 nonmetals where the electrons are shared between the two. Hydrogen chloride
Hydrogen 1 Chloride has 7 together make a shared bond.

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2
Q

Ionic bond

A

Between a non metal and a metal. The electrons are transferred from one bond to another.

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3
Q

Isotope

A

A form of an element is the world where its atomic mass is more. The number of protons stay the same and the number of neutrons increase.

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4
Q

Ion

A

An atom with a electric charge.

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5
Q

Nucules

A

The center of an atom, also the heaviest part. Contains the protons and the neutrons.

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6
Q

Protons

A

Positive charge and determine the number of electrons

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7
Q

Neutrons

A

Neutral or no charge, and hold some of the main weight in the nucleus.

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8
Q

Electrons

A

Have a negative charge and are determined by the number of protons because they are attracted to each other.

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9
Q

Matter

A

Any substance that has mass and takes up volume

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10
Q

Mass

A

The amount of matter of substance is an ibject

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11
Q

Volume

A

The amount of space an object takes up

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12
Q

Density

A

D =m/v measure of mass per unit. The smaller the object the more dense

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13
Q

Phase changes

A

Solid, liquid and gas
Solid has a definitive shape and volume and the particals vibrate.
Liquid has no shape or volume and the particles move freely but still attracted.
Gas has no shape or volume, is highly compressible and the paritcals move random,y with no attraction

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14
Q

Metals

A

Everything on the left side of the boron staircase and are used in ionic bonds

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15
Q

Non metals

A

Everything to the right of the carbon staircase and are used in ionic bonds.

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16
Q

Atomic number

A

The number at the top of the element that tells you how many electrons the element has.

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17
Q

Covenant naming

A

Uses mono,di,tri,tetra,penta,hexa,hepta, and cota at the front of the element name and ide at the end.

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18
Q

Ionic naming

A

Is between metals and non metals. Take the oxidation numbers and crisscross them then add ide at the end. But if the second name is polyotmic do not add ide

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19
Q

3 laws of genetics

A

Law of separation, from both parents only allele is passed down. Law of independent assortment, alleles don’t influence each other. Law of dominance, 1 dominate allele will always be shown.

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20
Q

Genotype

A

The genes of genetics of something

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21
Q

Phenotype

A

The physical characteristics of something

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22
Q

Homogeneous

A

Straight throughout

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23
Q

Heterogeneous

A

Not the same through out

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24
Q

Dominant

A

A gene that is always prominent no matter what

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25
Q

Recessive

A

A gene that is only shown if their are two of them

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26
Q

Direct evidence

A

A first hand observation. Eye witness police video camera.

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27
Q

Circumstantial evidence

A

Implying a fact and cannot prove it. Can be physical and biological. Blood type, a fingerprint

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28
Q

Class evidence

A

Goes towards a group of things, shoe print, blood type, hair without the follicle

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29
Q

Individual evidence

A

Narrowed down to one individual. Hair with the follicle, fingerprints or any form of DNA

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30
Q

Chemical change

A

Transforms a piece of matter into a different substance them it was before

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31
Q

Physical change

A

Changes the physical appearance but never changes the identity of a sample of matter

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32
Q

Parts of hair

A

The follicle and the shaft are the main two types of hair. The follicle holds DNA and is connected to your scalpe the shaft does not hold DNA

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33
Q

Layers of hair

A

The cuticle, Cortes and the medulla. The cuticle protects the other inner layers in a scale like pattern. The cortex in the big middle part of the hair and holds the pigmentation. The medulla is the very center of the hair shaft and can be visible, not visible, fragmented and disconnected.

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34
Q

Macroscopic

A

Seen without a microscope, the color, length and curls for hair.

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35
Q

Microscopic

A

Only able to be seen with a microscopic. It would be the medulla, pigmentation and the outside scales.

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36
Q

Valence electrons

A

The outermost electrons in an atom. Goes from 2-8-18

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37
Q

Unit conversion

A

King henry died drinking chocolate milk.
Kilo hecto deca deci centi mili

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38
Q

Stationary front

A

The slowest and least intense of the fronts. Cause could sand maybe light rain.

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39
Q

Warm front

A

Creates big clouds low in the sky that bring heavy rain.Bring in warm weather afterwards.

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40
Q

Cold front

A

The most severe of the three that brings massive clouds thunderstorms and the start of tornado weather. Cold weather after.

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41
Q

Fiber

A

The smallest measure of a textile.

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42
Q

DNA structure

A

Made up of bases and a back bone connected with hydrogen bonds. The back bone is made of sugar and phosphate. Then the rungs are called c and g and an and t always connected to the sugar. Together this is called the nucleotide and the whole thing is called a double helix.

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43
Q

Element

A

Substance made up from one type of atom, pure substance

44
Q

Compound

A

Two or more chemically combined substances, pure substance.

45
Q

Mixture

A

A combination of substances that can be separated. Not a pure substance

46
Q

Types of fingerprints

A

Loops, whirls, and arches. Loops are most common then whorls the arches, only 5 percent of the population has arches

47
Q

Delta

A

The triangle part on a whorl a loop and sometimes a sepecial kind of arch.

48
Q

Core

A

The center of a finger print

49
Q

Ridge count

A

The number of lines in between a delta and a core.

50
Q

Minutiae patterns

A

Patterns that make fingerprints more recognizable.

51
Q

Visible prints

A

Touching a surface with something colored on your fingers like blood or mud.

52
Q

Plastic prints

A

Impressions left on soft materials like soap or putty.

53
Q

Latent prints

A

The oil from your skin left behind in surfaces.l

54
Q

Greenhouse effects

A

The greenhouse effect keeps our earth warm. Certain gasses called greenhouse gases trap heat in our atmosphere and keep us alive. With out them we would die but with to many our planet will over heat.

55
Q

Air pressure

A

The weight of air molecules in the atmosphere.

56
Q

How to change air pressure

A

Add or remove air like from a tire.
Add or remove heat, high temp equals low pressure and low temp equals high pressure.
Move higher in elevation. The higher you are the more gravity pulls down on air molecules.

57
Q

Pressure gradient

A

Aire with high pressure try to become low and spreads out, the higher the difference between the two the more winds.

58
Q

Coriolis effect

A

Because our earth is rotating, it deflects rotating winds so everything in the north hemisphere moves to the right and in the southern it moves to the left.

59
Q

Circulation cell

A

When warm air and cold air are near each other they create a circulation cell. At the top of the cell warm air replaces cold and at the bottin cold air replaces warm

60
Q

Friction

A

Within a mile above the ground friction over objects causes wind to become very swirly.

61
Q

Antigens

A

The proteins on your blood that determine blood type

62
Q

Antibodies

A

The immune system attacking unknown antigens. So o blood
has a and b antibodies

63
Q

Rh antigen

A

Determines negative or positive blood type. If negative there is no rh if positive there is

64
Q

Blood type crossing

A
65
Q

Polyotomic ion

A

Contain 2 or more charged atoms

66
Q

Cation

A

An ion with a positive charge

67
Q

Anion

A

An ion with a negative charge

68
Q

Synthetic fiber

A

Made made and the melt and solidify when burned

69
Q

Natural fiber

A

When burned they shrink together and crumple up while also producing the smell of singede hair.

70
Q

Thunderstorms begin with the rising of

A

Warm, humid air

71
Q

What type of weather can you expect with the arrival of a cold front?

A

Thunderstorms

72
Q

The amount of water in the air compared to the capacity of the air is called

A

Relative humidity

73
Q

Siri has a current temperature of 45°F city B has a current temperature of 49°F dewpoint for both cities is 50° which city currently has two

A

Both city and city B

74
Q

An area of high-pressure is most likely to result what type of weather

A

Clear skies and sunshine

75
Q

Every time relative humidity reaches 100% it will rain

A

False

76
Q

What kind of weather did Northern Texas decks experience were cold front move through

A

Cooler weather with rain

77
Q

If the Earth did not rotate

A

We would have straight winds

78
Q

A falling barometer reading indicates clear skies ahead

A

False

79
Q

You must remove energy from a gas to make it condensed

A

True

80
Q

Which of the following might be consequence of carbon dioxide in your atmosphere?

A

Temperatures increase hurricane activity and more diseases

81
Q

Climates are usually classified/determined

A

Altitude and latitude

82
Q

The heat out in a control environment goes down, what has caused that

A

An increase in greenhouse gases

83
Q

How to count a horizontal ridge count

A

Start from the bottom and count the number of lines to the top or vice versa

84
Q

Which lobe of the brain responsible for both precipitation and memory

A

Temporal

85
Q

A person with a B antibodies must have what type of blood

A

O blood

86
Q

If both the alleles and the B allele are expressed what term best explains this

A

Codominance.

87
Q

What does DNA stand for?

A

Deoxyribonucleic acid

88
Q

DNA is cutting into fragments and then separated based on size in a gel during a process called

A

Electrophoresis

89
Q

Which of the following is the correct formula for photosnytheisis

A

Water plus carbon dioxide equals sugar plus oxygen

90
Q

Which of the following are products of burning?

A

Water and carbon dioxide

91
Q

In the carbon, where do you as an animal get the carbon you used to create carbon dioxide which you inhale after the process of our respiration

A

The food you eat

92
Q

How are humans making greenhouse gas?

A

Burning fossil in our cars, burning forest, with large scale agriculture

93
Q

Which of the following is a greater impact to rising levels

A

Melting land ice

94
Q

Greenhouse gas, not only traps heat atmosphere, but also destroyed the the ozone

A

Nitrous oxide

95
Q

What’s the temp lobe do

A

hearing, learning and feelings

96
Q

What is occipital lobe

A

Sight

97
Q

Frontal lobe

A

Perception and memory

98
Q

How do you solve the medullary index?

A

Medulla divided by the diameter of the hair

99
Q

Parietal lobe

A

Language and touch

100
Q

What is the difference between animal and human hair?

A

Animal hair is less precise the scales go everywhere. The pigmentation is not constant and medulla is thicker in human hair scales constant along with the pigmentation and the medulla is thinner.

101
Q

Carbon dioxide

A

Burning fossil fuels organisms contributor to earths warming

102
Q

Water vapor

A

Stop heat from escaping the atmosphere hold warm air

103
Q

Methane

A

From cattle and wetlands traps a lot of heat, hydrogen and carbon

104
Q

Nitrous oxide

A

Natural gas and traps a lot of heat and damages the ozone layer

105
Q

CFCs,

A

Damage the ozone layer, most powerful greenhouse gas

Finals (3 decks)

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