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Understand the Basic Principles of Haircutting Good haircuts begin with an understanding of the shape of the head, referred to as the head form, also known as head shape. Hair responds differently on various areas of the head depending on the length and the cutting technique used. Being aware of where the head form curves, turns, and changes will help you achieve the look that you and your client are seeking. Reference Points Reference points on the head mark where the surface of the head changes, such as the ears, jawline, occipital bone, or apex. These points are used to establish design lines (figure 16-1). An understanding of head shape and reference points will help you in the following ways: Finding balance within the design, so that both sides of the haircut turn out the same. Developing the ability to create the same haircut consistently. Showing where and when it is necessary to change technique to make up for irregularities (such as a flat crown) in the head form. Standard reference points are defined below: Parietal ridge (puh-RY-ate-ul RIJ). This is the widest area of the head, starting at the temples and ending at the bottom of the crown. This area is easily found by placing a comb flat on the side of the head: The parietal ridge is found where the head starts to curve away from the comb. The parietal ridge is also referred to as the crest area (figure 16-2). Occipital bone (ahk-SIP-ih-tul BOHN). The bone that protrudes at the base of the skull is the occipital bone. To find the occipital bone, simply feel the back of the skull or place a comb flat against the nape and find where the comb leaves the head (figure 16-3). Apex (AY-peks). This is the highest point on the top of the head. This area is easily located by placing a comb flat on the top of the head. The comb will rest on that highest point (figure 16-4). Four corners. These may be located in one of two ways. One is by placing two combs flat against the side and back, and then locating the back corner at the point where the two combs meet (figure 16-5). The second is by making two diagonal lines crossing the apex of the head, which then point directly to the front and back corners (figure 16-6). You will not necessarily use every reference point for every haircut, but it is important to know where they are. The location of the four corners, for example, signals a change in the shape of the head from flat to round and vice versa. This change in the surface can have a significant effect on the outcome of the haircut. For example, the two front corners represent the widest points in the bang area. Cutting past these points can cause the bang to end up on the sides of the haircut once it is dry, creating an undesirable result. Areas of the Head The areas of the head are described below (figure 16-7): Top. By locating the parietal ridge, you can find the hair that grows on the top of the head. This hair lies on the head shape. Hair that grows below the parietal ridge, or crest, hangs because of gravity. You can locate the top by parting the hair at the parietal ridge, and continuing all the way around the head. Front. By making a parting, or drawing a line from the apex to the back of the ear, you can separate the hair that naturally falls in front of the ear from the hair behind the ear. Everything that falls in front of the ear is considered the front. Sides. The sides are easy to locate. They include all hair from the back of the ear forward, below the parietal ridge. Crown. The crown is the area between the apex and the back of the parietal ridge. On many people, the crown is flat and is the site of cowlicks or whorls. Because of this, it is extremely important to pay special attention to this area when haircutting. Nape. The nape is the area at the back part of the neck and consists of the hair below the occipital bone. The nape can be located by taking a horizontal parting, or by making a horizontal line across the back of the head at the occipital bone. Back. By making a parting or drawing a line from the apex to the back of the ear, you can locate the back of the head, which consists of all the hair that falls naturally behind the ear. When you have identified the front, you have also identified the back. Bang area. also known as fringe area. The bang area is a triangular section that begins at the apex and ends at the front corners (figure 16-8). This area can be located by placing a comb on top of the head so that the middle of the comb is balanced on the apex. The spot where the comb leaves the head in front of the apex is where the bang area begins. Note that the bang area, when combed into a natural falling position, falls no farther than the outer corners of the eyes

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Earth Science, Space & Chemistry Study Guide Glaciers 1. What are the two main types of glaciers? Mountain (alpine) Continental 2. What shape is a glacier-carved valley? U-shaped 3. What conditions are needed for glaciers to form? Cold summers Heavy snowfall Snow does not fully melt 4. Why are glaciers important? Store freshwater Shape land Affect climate Earth’s Layers & Plate Tectonics 5. What is the thinnest layer of Earth? Crust 6. What are the three main layers of Earth? Crust Mantle Core 7. What is plate tectonics? Earth’s crust is made of moving plates 8. What are the three plate boundaries? Divergent Convergent Transform Memory Trick Divergent = divide Convergent = collide Transform = slide past 9. What causes earthquakes? Movement of tectonic plates 10. What is an aftershock? Smaller earthquake after a major one 11. What is a fault? Crack in Earth where movement happens Rocks, Volcanoes & Erosion 12. Which rock forms when magma or lava cools? Igneous rock 13. What are the three rock types? Igneous Sedimentary Metamorphic Memory Trick Igneous = fire Sedimentary = layers Metamorphic = changed by heat and pressure 14. What is the difference between magma and lava? Magma = underground Lava = surface 15. What are the three volcano activity levels? Active Dormant Extinct 16. What are the three volcano shapes? Shield Composite Cinder cone 17. What is weathering? Breaking down rock 18. What is erosion? Movement of dirt and rocks by water, wind, ice, or gravity 19. What is mechanical weathering? Physical breaking of rock 20. What is chemical weathering? Rock changes chemically 21. What is terracing? Flat steps cut into hillsides to reduce erosion Caves 22. What is the most common type of cave? Solution cave 23. Difference between stalactites and stalagmites Stalactites hang from the ceiling Stalagmites grow from the floor Memory Trick Stalactites hold “tight” to the ceiling Stalagmites “might” reach the ceiling Important Earth Science Terms 24. What is uniformitarianism? Natural processes today worked the same in the past 25. Difference between soil and dirt Soil has nutrients and supports life 26. What is elevation? Height above sea level 27. How deep have scientists explored into Earth? Only partway through Earth’s crust Atmosphere, Weather & Climate 28. Layers of the atmosphere Troposphere Stratosphere Mesosphere Thermosphere Exosphere Memory Trick The Sky Makes Tiny Explosions 29. What causes seasons? Earth’s tilted axis 30. Difference between weather and climate Weather = short-term conditions Climate = long-term average weather 31. What causes tides? Gravity from the moon and sun Fossils & Resources 32. Types of fossils Mold Cast Trace fossils 33. Renewable vs nonrenewable resources Renewable = naturally replaced Nonrenewable = limited supply Space Unit Solar System 34. Planets in order from the Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Memory Trick My Very Educated Mother Just Served Us Nachos 35. What is the hottest planet? Venus 36. Largest planet Jupiter 37. Smallest planet Mercury 38. Planet that rotates on its side Uranus 39. Inner planets Mercury Venus Earth Mars 40. Outer planets Jupiter Saturn Uranus Neptune 41. Gas giants Jupiter Saturn 42. Ice giants Uranus Neptune 43. Why is Pluto not considered a planet? It has not cleared its orbit 44. What keeps planets in orbit? Gravity 45. Rotation vs revolution Rotation = spinning Revolution = orbiting Space Objects 46. Asteroid Rock in space 47. Meteor Streak of light in atmosphere 48. Meteorite Meteor that hits Earth 49. Comet Ice and dust object with a tail Space Exploration 50. NASA program that put humans on the moon Apollo Program 51. First man on the moon Neil Armstrong 52. Space shuttle that exploded Challenger Sun & Stars 53. Two elements that make up most of the sun Hydrogen Helium 54. What are sunspots? Cooler, darker spots on the sun 55. Surface temperature of the sun About 11,000°F 56. Type of energy from the sun Electromagnetic energy 57. How long sunlight takes to reach Earth About 8 minutes 20 seconds 58. Brightness of a star depends on Distance from Earth Amount of light it gives off 59. Supernova Exploding star 60. Nova Temporary brightening of a star 61. Nebula Cloud of dust and gas in space 62. Plasma Material the sun is made of Moon & Eclipses 63. Solar eclipse Moon blocks sunlight from reaching Earth 64. Why the moon has many craters Almost no atmosphere to burn up meteors 65. Why we only see one side of the moon Moon rotates and revolves at the same speed 66. Moon phases to know New Moon Waxing Crescent Full Moon Waning Gibbous Last Quarter Shortcut New → Waxing → Full → Waning Space Vocabulary 67. Milky Way Our galaxy 68. Astronomy Study of space 69. Light-year Distance light travels in one year 70. Constellation Group of stars forming a pattern 71. Most common galaxy shape Elliptical galaxy Chemistry Basics 72. What is an ion? Atom that gains or loses electrons and becomes charged 73. Ionic bond Electrons transferred between atoms Metal + nonmetal 74. Covalent bond Atoms share electrons Nonmetal + nonmetal 75. Metallic bond Metals bonded with freely moving electrons Metal + metal 76. Valence electrons Electrons in the outer energy level 77. Atomic number Number of protons 78. Exothermic reaction Reaction that releases energy 79. What metals usually do with electrons Lose electrons easily 80. Sulfur’s atomic number 16 81. Carbon valence electrons 4 82. Protons in arsenic 33 Parts of an Atom 83. Proton Positive charge 84. Neutron Neutral charge 85. Electron Negative charge 86. Where particles are found Protons & neutrons = nucleus Electrons = electron cloud Periodic Table 87. Groups/Families Vertical columns Same valence electrons 88. Periods Horizontal rows Same number of energy levels Metals 89. Six characteristics of metals Shiny/lustrous Solid at room temperature Malleable Ductile Conduct heat/electricity Reactive Noble Gases 90. Why are noble gases nonreactive? Full valence electron shell Other Chemistry Terms 91. Electronegativity Ability of an atom to attract electrons 92. Free electron model Electrons move freely through metals 93. First law of thermodynamics Energy cannot be created or destroyed 94. Reactants Starting substances in a reaction 95. Products New substances formed Acids & Bases 96. pH scale 0–6 = acidic 7 = neutral 8–14 = basic Nutrition 97. Three macronutrients Carbohydrates Fats Proteins Examples Carbs = bread/pasta Fats = avocado/nuts Proteins = meat/beans 98

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Which of the following was an economic policy of Louis XIV's finance minister, Jean-Baptiste Colbert? C. Establishing detailed manufacturing codes to improve the quality of French export goods Which of the following best summarizes the advice given by Frederick William in the first paragraph? D. Helping the people will strengthen the state Which of the following best summarizes the advice given by Frederick William in the second paragraph? Cultivate good relations with your neighbors in case of disputes. Which of the following best summarizes the advice given by Frederick William in the third paragraph? C. Alliances are useful but a state should rely on its own strength The system of intendants was established in seventeenth-century France primarily to B. implement royal policies locally The event shown in the engraving is associated with the development of which of the following forms of government in Europe in the seventeenth century? A. Absolutism The depiction of the scene in the engraving best illustrates which of the following aspects of the French aristocracy under Louis XIV's rule? A. The maintenance of the aristocracy's privileged social position Military operations such as the one shown in the engraving were most strongly supported by which of the following features of Louis XIV's government? B. The creation of a strong centralized system of taxation and state finance Which of the following represents the final defeat of efforts by the Ottoman Empire to acquire large areas of central Europe? d. The siege of Vienna (1683) The Russian woodcut above (about 1698) symbolizes Peter the Great's c. imposition of Western values on the Russian nobility The establishment and growth of St. Petersburg during the early eighteenth century was part of Peter the Great's attempt to do which of the following? C. Remake Russian institutions to be as effective as those in Western Europe Which of the following best describes the claim communicated by the artist about the Peace of Westphalia? D. The treaty would lead to a new period of peace and prosperity. The artist's statement that the kings of France, Spain, and the Holy Roman Empire "stand united" most clearly suggests that A. he hoped the Peace of Westphalia would bring the rival Catholic powers back together The presence of Bellona and the statement that "the people are obedient under you, o great Philip" best support the argument that the artist B. wished to portray the Catholic Habsburgs as the victors "Kings are justly called gods for that they exercise a manner or resemblance of Divine power upon Earth." Which of the following was most likely to agree with this statement? B. James I of England The "malicious words" attributed to the accused best illustrate which of the following developments in England in the late seventeenth century? C. The ongoing tensions between Parliament and the Crown over the limits of royal authority. Michael Ferrer's defense best illustrates which of the following? B. The Protestant victory in the Glorious Revolution The outcome of the trial best illustrates which of the following (Michael Ferrer)? A. The protection of the rights of the gentry and aristocracy from monarchical power The cartoon above from sev

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