**주의**

해답을 찾으려면 먼저 순서대로 번호를 매겨주세요.

중간에 Insulators를 빼고 번호를 매기게 되어서 하나씩 밀린 셈이 되었답니다.

그래서 Insulators는 맨 마지막 번호인 166번입니다.

<1>

cell wall,     abiotic factors,   constellations,     antibodies,

cell plate,     astronomers,     atom,     cell membrane,   bulbs,

atomic number,   bacteria,   circulatory system,   balanced ecosystem,     bases,     biotic factors,     buds,   adrenal glands,   carnivores,   chloroplasts,      cellulose,      chemical change,   adapt,   chlorophyll,  chromosomes,   conductors,

2. Living things ___________________ when they adjust ot changes in their environments.

1. The ___________________ ___________________ are the nonliving things in an ecosystem.

3. The ___________________ ___________________ make hormones that help the body use extra energy when necessary.

4. ___________________ are special germ-fighting molecules carried by some white blood cells.

6. An ___________________ is the smallest part into which an element can be separated. All matter is made of atoms.

23. The ___________________ ___________________ carries food and oxygen through the body and removes wastes from the cells.

7. An element's ___________________ ___________________ is the number of protons in one atom of the element.

8. ___________________ are tiny, one-celled living things.

13. ___________________ are short pieces of stem wrapped in special leaves that grow into new plants.

9. In a ___________________ ___________________, the populations of living things change little over a long time because each kind of living things is getting what it needs.

25. ___________________ are named patterns of stars used to make star maps.10. Four ___________________ are special molecules that make up DNA.

11. The ___________________ ___________________ are the living things in an ecosystem.

5. ___________________ are acientists who study the stars and other objects in the sky.

12. ___________________ are special places on stems from which new stems and leaves grow.

14. ___________________ are animals that eat only other animals.

16. In cell mitosis, the formation of the ___________________ ___________________ in the middle of the parent cell is the final step that divides a plant cell into two new cells.

17. ___________________ is plant matter found in wood.

22. ___________________ are rodlike shapes in a cell's nucleus that contain the genetic code.

18. The ___________________ ___________________ is a thick, stiff outer covering that protects and supports each plant cell. It provides a route for water and minerals to travel among plant cells.

19. A ___________________ ___________________ happens when molecules separate or join to make new matter.

20. ___________________ is a special green molecule that takes in energy from sunlight, which the cell uses to make food in photosynthesis.

15. The ___________________ ___________________ is a tough, thin covering that holds a cell together. It also controls the movement of materials in and out of the cell.

21. ___________________ are organelles found in cells in a plant's leaves and stems. They contain chlorophyll.

24. ___________________ are usually metals that allow electric current to flow.

<2>

electron,   continents,   electric current,   coral reef,   electric charge,   core,   crossing-over,   element,   cytoplasm,   diffusion,   digestive system,   disease,   dissolved,   continental drift,   DNA,   dome mountains,   decomposers,   dominant gene,   ecosystem,   eggs,   crust,   electric circuit,   consumers,   electromagnet,   endocrine system,

31. ___________________ is a trading of genetic information that takes place between paired chromosomes during meiosis.

27. ___________________ ___________________ is the idea that the continents move apart as Earth's tectonic plates move.

29. A ___________________ ___________________ is a ridge built in the ocean by the skeletons of tiny coral animals.

26. ___________________ are living things in a food chain that eat other living things.

30. The ___________________ is the solid center of Earth.

32. The ___________________ is the outside layer of Earth.

33. ___________________ is the jelly-like material containing a cell's working parts.

28. The ___________________ are the seven large landmasses on Earth's crust.

34. ___________________ are tiny bacteria or fungi that break down the remains of dead plants and animals.

44. A positive ___________________ ___________________ is the opposit of a negative electric charge.

35. ___________________ is the movement of dissolved substances through a liquid.

36. The ___________________ ___________________ is a group of organs that takes in food and changes it to a form cells can use.

38. ___________________ means that a substance breaks into particles so small it disappears in liquid.

39. ___________________ is the molecule in the chromosomes that makes up the genetic code.

46. ___________________ ___________________ is the movement of electric charges.

40. ___________________ ___________________ form when two plates push against each other, bulge, and form a shape like an upside-down bowl.

37. ___________________ is a sickness in your body.

41. A ___________________ ___________________ represents a trait that is always expressed, or shows itself.

43. ___________________ are female sex cells.

49. An ___________________ is the simplest kind of matter, made of only one kind of atom.

45. An ___________________ ___________________ is a complete loop through which a steady flow of electric current can move.

47. An ___________________ is a coil of wire wrapped around an iron core. Its magnetic field is caused by an electric current passed through the wire.

42. An ___________________ includes all the populations of living things in a certain area and all the nonliving things around those populations.

48. An ___________________ is one of the smaller parts of an atom and has a negative charge.

50. The ___________________ ___________________ includes glands that produce hormones that help control many body processes.

<3>

fold mountains,    generator,    erosion,   hormones,   evaporation,   excretory system,   fault,    herbivores,   fault-block mountains,   gas,   food chain,   food web,   fungi,   galaxy,     gene,   genetic material,   glacier,   keystone species,   glands,   hypothalamus,   gravity,   habitats,   heredity,   estrogen,   immune system,

55. A ___________________ is a line formed wherever Earth's tectonic plates meet.

51. ___________________ carries away tiny pieces of rock weathered by wind and water.

53. ___________________ is the physical change of state from liquid to gas.

60. ___________________ are simple living things. They can be made of just one cell or many.

54. The ___________________ ___________________ carries wastes out of the body.

58. A ___________________ ___________________ is formed by living things that feed on each other. For example, grass is eaten by a cricket, the cricket is eaten by a frog, and the frog is eaten by a hawk.

56. ___________________ ___________________ form along cracks, or fault, in plates.

52. ___________________ is a hormone produced by the ovaries.

57. ___________________ ___________________ form when two plates push against each other and fold upward.

59. A ___________________ ___________________ is formed by two or more food chains that are connected.

61. A ___________________ is a huge cluster of stars.

63. A ___________________ is a piece of DNA that makes up one part of the genetic code in a cell.

66. A ___________________ is a river of moving ice.

74. The ___________________ ___________________, which includes your skin, bone marrow, and white blood cells, protects you against harmful germs.

67. ___________________ are organs that produce hormones to help control many body processes.

68. ___________________ is a force that pulls objects together.

73. The ___________________, a part of your brain, controls the pituitary gland. together they control hormone activity in your body.

69. ___________________ are areas in which the conditions fill the needs of particular living things.

70. ___________________ are animals that eat only plants.

71. Your v is your chromosomes and the genes they carry. The traits they give you came from both your parents.

64. A ___________________ produced electricity by moving a coil of wire through the magnetic field of a giant, ring-shaped magnet.

62. ___________________ is matter in which the molecule move about freely, spreading apart to fill any closed container.

65. ___________________ ___________________ is a set of codes in the nucleus of each cell that tells the cell what to be and what to do.

72. ___________________ are chemicals that help control many body processes.

75. ___________________ ___________________ are a few key plant and animal groups that affect their communities in important ways.

<4>

nebula,    lava,    light-year,    magnet,     mantle,    marrow,    liquid,    mass,    meiosis,    molecule,   mid-ocean ridge,    mitochondria,    mitosis,    nuclear reaction,    mixture,    muscular system,    mutation,    nervous system,   nucleus,    omnivores,    organelles,    magnetic field,   organ systems,     matter,    organs

79. A ___________________ has a special force to repel and attract other magnets. It can also attract and hold on to some metals.

76. ___________________ is melted rock that flows from a volcano.

78. A ___________________  is matter in which the particles stay close together but can slide and flow past each other. A ___________________  takes the shape of its container.

80. A ___________________ ___________________ is the pattern of lines around a magnet made by the magnet's force.

77. A ___________________ is the distance light travels in one year.

81. The ___________________ is the layer of Earth below the crust. It is about 1,800 miles thick.

86. The ___________________ ridge is the world's largest mountain chain. It is on the ocean floor where magma pushes Earth's plates apart.

82. ___________________ is the soft center part of a bone that produces red blood cells.

84. ___________________ is anything that takes up space.

90. ___________________ are the tiny building blocks that make matter. They are formed by pairs or groups of atoms.

85. ___________________ is cell division used to produce sex cells.

87. ___________________ are small organelles that produce most of a cell's energy in a process called respiration.

92. A ___________________ is a small change in a DNA molecule.

88. ___________________ is the process in which a cell divides into two identical cells.

83. ___________________ is a measure of how much matter a thing contains.

89. A ___________________ is two or more kinds of matter put together, with each kind still present. No new substance is formed.

91. The ___________________ ___________________ is made up of the muscles. Together with the skeletal system, it makes movement possible.

93. A ___________________ is a collection of gas and dust in space where most stars begin life.

94. The brain, spinal cord, and nerves make up the nervous system. The nervous system makes an animal aware of what goes on around it and allows it to act on information from its surroundings.

95. A ___________________ ___________________ is a process in which matter changes, releasing energy.

96. The ___________________ controls the cell's activities. It contains the codes that give the cell its characteristics.

97. ___________________ are animals that eat both plants and other animals.

98. ___________________ are a cell's working parts with special jobs.

99. ___________________ ___________________ are groups of organs.

100. ___________________ are formed by grouping different kinds of tissues.

<5>

ovaries,   protostar,   pancreas,   Pangaea,   photosynthesis,   proton,   physical change,   osmosis,   protozoa,   pineal gland,   pituitary gland,   plate tectonics theory,   poles,   population,   population growth,   predators,   producers,   progesterone,   protists,   puberty,   recessive gene,   prey,   parallel circuit,   red giant,   Polaris

105. In a ___________________  ___________________ , each bulb is connected to the power source in its own loop. If one bulb breaks, the current still flows through the other bulbs.

101. ___________________ is the diffusion of water through a membrane, such as a cell's membrane.

103. The ___________________  is a gland. It produces hormones that control how much sugar, or glucose, is carried in your blood.

106. ___________________  is the process in which plants use water, carbon dioxide, and sunlight to make food.

108. The ___________________ ___________________ makes a hormone that works like a timekeeper. The gland makes more of its hormone at night while you sleep and less during the day.

115. ___________________ are animals that hunt and eat other animals.

109. The ___________________ ___________________ produces hormones that control other glands and affect growth.

102. ___________________  are the sex glands in females.

110. The ___________________ ___________________ ___________________ states that Earth's crust is made of floating pieces.

104. ___________________  was a supercontinent that scientists believe existed many millions of years ago. At that time, all Earth's continents were connected.

111. ___________________, the North Star, is almost directly aboe Earth's North Pole.

113. A ___________________ is a group of living things of the same kind living in a certain area.

123. ___________________ is the time around the teenage years when the body grows and develops and the sex organs mature.

114. ___________________ ___________________ happens when more living things come into a population

116. ___________________ are animals hunted and eaten by other animals.

124. The trait that a ___________________ ___________________ represents does not show itself unless both genes on the chromosome pair are recessive.

117. ___________________ are the first living things in a food chain. They are usually green plants that use the sun's energy to make food.

107. A ___________________ ___________________  takes place when the appearance or state of matter changes, but a new substance is not formed.

118. ___________________ is a hormone produced by the ovaries.

112. A magnet has two ends, called its north and south ___________________.

119. ___________________ are tiny, one-celled living things that include the protozoa.

120. A ___________________ is one of the smaller parts of an atom and has a positive charge.

122. ___________________ are one-celled living things that feed on other living things.

125. A ___________________ ___________________ is a late stage in the life of a star. Outer layers of gas grow larger and cooler, changing to a red color.

121. A ___________________ is a cloud of hydrogen gas and dust that forms inside a nebula. It is an early stage in the life of a star.

<6>

volume,   respiratory system,   supernova,   solar system,   ridges,   rotates,   scavengers,   sedimentation,   sediments,   series circuit,   sex cells,   shoots,   states,   skeletal system,   solid,   solution,   species,   wetlands,   sperm,   testes,   starch,   respiration,   static electricity,   tectonic plates,   testosterone,   theory,   thyroid gland,   tissues,   zygote,   trait,   trench,   seafloor spreading,   trophic levels,   tubers,   universe,   vacuole,   viruses,   volcanic mountain,   weathering,   white dwarf,   insulators

129. Earth rotates, or turns, on its axis toward the east, causing day and night.

126. ___________________ is the process in which cells use food to release energy.

128. ___________________ are long cracks in the ocean floor where magma from the mantle oozes out.

130. ___________________ are animals that eat the remains of dead animals.

131. ___________________ ___________________ is the movement of Earth's tectonic plates away from the ridges in the ocean.

132. ___________________ is the dropping of pieces of rock carried by wind and water.

133. ___________________ are pieces of rock carried by wind and water.

127. The ___________________ ___________________ takes in oxygen and removes carbon dioxide from the body.

134. In a ___________________ ___________________, objects, such as lightbulbs, are connected in one large loop. If any part of the circuit is broken, the current will not flow.

135. ___________________ ___________________, called eggs and sperm, are special cells used in reproduction.

136. ___________________ are new leaves and stems that grow from special places on stems.

138. Our ___________________ ___________________ includes planets, moons, comets, asteroids, meteoroids, and other objects that orbit the sun.

139. A ___________________ is matter in which the molecules are very close together, hardly moving from their positions.

140. A ___________________ is a kind of mixture in which the molecules of one substance separate and spread evenly among the molecules of another substance.

137. The ___________________ ___________________ includes the tissues, such as bones, that provide support.

141. A ___________________ is a group of living things of one kind.

144. The three ___________________, or forms, of matter are solid, liquid, and gas.

142. ___________________ are male sex cells.

143. Plants change some of the sugar they make to starch, and store it in different plant parts, such as roots.

145. ___________________ ___________________ is the electric charge created when electrons are moved from one object to another.

146. A ___________________ results when a very large star dies. The star's outer layers explode and gases fly into space, leaving either a neutron star or a black hole.

147. ___________________ ___________________ are the large pieces into which Earth's crust is broken.

164. A ___________________ ___________________ is the last stage in the life of a star.

148. ___________________ are the sex glands in boys.

152. ___________________ are groups of the same kind of cells joined together.

149. ___________________ is a hormone produced by the testes.

163. ___________________ are areas, such as swamps, with standing water on the land.

150. A ___________________ is an explanation of something supported by scientific evidence.

151. The ___________________ ___________________ produces a hormone that controls energy levels in your body.

153. A ___________________ is a characteristic--for example, whether you are tall or short, blue-or brown-eyed, a boy or girl.

154. A ___________________ is formed where tectonic plates meet and one moves under another.

155. ___________________ ___________________ are the feeding levels to which all the creatures in a food web belong. Living things that share the same kinds of food are at the same level.

157. The ___________________ is all the objects and energy in space, such as stars, planets, dust, gases, and light.

161. ___________________ is a measure of how much space something takes up.

158. A ___________________ is a cell storage center, containing a liquid that is mostly water with salts and sugars in it.

159. ___________________ are not living things. They depend on living things to help them reproduce. ___________________ enter certain cells, reproduce, and then kill the cells.

156. ___________________ are thick parts on the ends of some stems. The white potato is a tuber.

160. A ___________________ ___________________ is formed by magma erupting out of Earth's crust.

162. ___________________ is the wearing away of tiny pieces of rock by wind and water.

165. A ___________________ is the new cell that forms when a sperm and an egg join.

166. ___________________ are materials that do not allow electric current to flow.