Name Period Date Science 7R - Marking Period 3 Review SCIENTIFIC METHOD 1. What are the steps of the scientific method?

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1 Name Period Date Science 7R - Marking Period 3 Review SCIENTIFIC METHOD 1. What are the steps of the scientific method? 2. What is meant by State the Problem? 3. What is a hypothesis? 4. In which step is data organized and analyzed? 5. Which step tests the hypothesis? 6. What can be done to make any experiment more valid? 7. A student wanted to test whether salt affects the growth of plants. He gave 10 Plants in group A water and 10 Plants in group B water with 5mg of salt. After 2 weeks the plants in Group B Died. a. STATE THE PROBLEM: b. STATE A HYPOTHESIS: c. Independent variable = f. Experimental group = d. Dependent variable = g. 3 Constants e. Control group = MEASUREMENT 8. What is the length of the object below? 9. What is the volume of the liquid below? 10. A student placed 10.5 ml of water into a graduated cylinder. An object was placed into the same graduated cylinder. The water level went up to 16.5 ml. What is the volume of the object? 11. Convert the following measurements: a cm = km b L = ml 12. Determine the volume of an object with the following dimensions: L = 1.56 w = 4.3 cm H = cm. Show all work! 13. Identify the SI units for each type of measurement: a. Length; b. Mass: c. Volume: d. Temperature: 14. What instrument measures mass? MICROSCOPE 15. Label the compound light microscope below. 16. What is the function of the diaphragm? 17. Explain the difference between the coarse adjustment knob and the fine adjustment.

2 18. Why can t we use the coarse adjustment when using the high power objective? 19. When making a wet mount, why should you lower the cover slip on an angle? 20. What is the diameter of the field of view below: 21. An object is observed in the field of view below. In which direction should you move the slide in order to center the image. a. In millimeters = b. In micrometers = 22. How does a specimen appear when looking at it under a microscope? 23. The diameter of the field of view is 24. The diameter of the field of view is 5000 um um. What is the length of the object What is the length of one of these objects? in this field of view? a. Millimeters = a. Millimeters: b. Micrometers = b. Micrometers: CLASSIFICATION 25. What are the 7 levels of classification from largest to smallest. 26. How do we name organisms? 27. Identify the 5 kingdoms. For each one identify important characteristics and 2 examples for each. KINGDOM CHARACTERISTICS EXAMPLES What is homeostasis? 29. Use the dichotomous key to determine the name of the creatures below. 1. Has one hair...2. Has two hairs Has a belly button...bip Has no belly butto Has two legs...glip Has four legs...foop 4. Has arms... GLOP Has no arms... NOP CHEMISTRY 30. Identify the part of the atom being described: a. positive charge b. found moving around the nucleus c. negative charge d. found in the nucleus e. no charge f. smallest mass 31. What is the difference between an element and a compound? 32. Identify an example of a physical property.

3 33. Identify an example of a chemical property. 34. What is a physical change? Give an example. 35. What is a chemical change? Give an example. 36. Identify the phase of matter being described below: d. Identify the phases of matter below. a. molecules very apart, move very fast: b. molecules slide past each other: c. molecules packed tightly together: 37. For each phase change below, identify how the material is changing, and whether heat is being absorbed or released. a. melting: c. evaporation: b. freezing: d. condensation: 38. Identify the parts of the periodic table being described below: a. Rows: g. All elements to the left of the zig zag line: b. Columns: h: Elements to the right of the zig zag lines: c. Group18: i. Ductile & malleable: d. Brittle: j. On zig zag line: e. Group 1: k. Have luster: f. good conductors: l. may have properties of both metals & nonmetals: 39. a. Atomic #: d. mass #: b. Atomic mass: e. # of neutrons: c. # of protons: 40. What is the Ph Scale? 41. Identify whether the substances with the following ph s are acids, bases, or neutral. a. ph of 7 = b. ph of 3 = c. ph of 11= CELLS 42. What are the 3 parts of the cell theory? _ 43. Explain the contributions the following scientists made to science. a. Hooke: c. Schleiden: b. Schwann: d. Virchow: 44. Identify the organelle being described: a. Semi-permeable. g. Contain enzymes that break down materials. b. Holds organelles in place. h. Carry out photosynthesis. c. Controls the cell. i. Helps animal cells divide. d. Gives a plant cell its shape. j. Produces ribosomes. e. Package and ship materials out. k. Carries out respiration. f. Produce proteins. l. Stores materials. m. Channels in the cytoplasm that transport materials 45. What are the 5 levels of organization in a multicellular organism from smallest to largest?

4 46. Label the cell organelles below. F G H I N O P Q E J R D C B K L S A M W V U T TRANSPORT 47. What are the 2 types of passive transport? 48. What is osmosis? 49. Explain 2 differences between passive and active transport. 50. Which way does water move when a cell is placed in salt water? 51. Which way does water move when a cell is placed in distilled water? RESPIRATION 52. What are the differences between aerobic respiration and anaerobic respiration? 53. Identify the 2 types of anaerobic respiration and in what organism each occurs. SKELETAL & MUSCULAR SYSTEMS 54. What is the difference between a ligament and tendon? 55. Explain the various functions of cartilage. 56. What are the 5 functions of the skeletal system? 57. What is a joint? 58. Fill in the chart below. TYPE OF MUSCLE VOLUNTARY/INVOLUNTARY STRIATED/NONSTRIATED LOCATION A. B. C.

5 DIGESTIVE SYSTEM 59. Identify the nutrient being described: a. build and repair b. Primary source of energy. c. regulate body functions d. What makes up most of the body. e. Store energy f. makes up most of the body 60. Label the parts of the digestive system. 61. How is energy measured in food? 62. How does chemical digestion occur in the mouth? 63. How does mechanical digestion happen in the mouth? 64. How does mechanical digestion happen in the stomach? 65. How does chemical digestion happen in the stomach? 66. Where does digestion end? 67. Where are nutrients absorbed into the blood? CIRCULATORY SYSTEM 68. Fill in the charts below. 69. BLOOD VESSEL FUNCTION a. b. c. PARTS OF THE BLOOD a b. c. d. FUNCTIONS 70. BLOOD TYPE ANTIGEN ANTIBODY a. b. c. d.

6 71. Label the parts of the heart below. 72. What kind of blood does the right side of the heart receive? Where did it just come from? Where does it pump blood to? 73. What kind of blood does the left side of the heart receive? Where did it just come from? Where does it pump blood to? Fill in the charts below. _ A B RESPIRATORY SYSTEM 74. Label the diagram below. 75. What is the function of the respiratory system? _ G 76. Why is the trachea made of cartilage? C H 77. List the organs, in order, through which air enters the body and passes through them. F E D I J K 78. What are the functions of cilia and mucus membranes in the in the nasal cavity? 79. What 3 things happen in the respiratory system when you inhale? EXCRETORY SYSTEM 80. Label the diagram below. 81. What is excretion? 82. What is the function of perspiration? 83. What nitrogen waste does the liver produce? 84. What are the three functions of the kidneys?

7 IMMUNE SYSTEM 85. What is a pathogen? 86. How do antibodies protect the body against disease? 87. Explain the differences between passive and active immunity. 88. Explain the differences between an infectious and noninfectious disease. 89. How does HIV affect the body? 90. What is an allergy? What does the body produce as a response? 91. Explain the differences between an infectious and noninfectious disease. NERVOUS & ENDOCRINE SYSTEMS 92. What is regulation? 93. A message sent by the nervous system is called an. 94. A change in the environment which causes a response is called a. 95. The sense organs that pick up a stimulus is called a. 96. Muscles of glands that carry out a response are called. 97. How does an impulse travel through a synapse? 98. Label the neuron below. 99. Identify all missing parts of the reflex arc below.

8 100. Fill in the chart below. PARTS OF THE BRAIN a. FUNCTION b. c Label the diagram below The central nervous system is made up of the A 103. The nerves that branch of the spinal cord make up the nervous system. B C 104. What is a hormone? 105. How do hormones travel to target cells? 106. a. Draw a line from the name of the gland to its picture. b. Draw a line from the picture of the gland to its function.

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