Top 100 presentations

1. Continuous Verb Tenses
   35455
2. Support and transport in plants
   33933
3. Anyong Tubig Anyong Lupa sa Asya
   29400
4. Elements compounds and mixtures
   26100
5. Chromosome
   22147
6. Simple Verb Tenses
   20835
7. Atomic Structure
   20342
8. Balancing Chemical Equations. Balancing redox equations
   20210
9. Periodic Behavior
   19959
10. Newton’s laws of motion
    18950
11. Periodic Trends
    16778
12. Adverbs
    16667
13. Percent Composition, Empirical and Molecular Formulas
    16021
14. Animal Farm
    15851
15. Bonding, Molecular Shape & Structure
    14801
16. Circulation and Gas Exchange
    13553
17. MakingFood
    13465
18. DNA - An overview
    13172
19. Atomic Structure and Periodic Trends
    12971
20. Fungi
    12929
21. Volumetric
    12727
22. Feminism- Cure or Curse
    12581
23. Atomic Structure and Periodicity
    12566
24. Hormones and the Endocrine System
    12263
25. Animal Development
    12197
26. Derivation Applications of Bernoulli Principal
    11950
27. Osmoregulation and Excretion
    11569
28. Plasma Membrane-Gateway to the Cell
    10843
29. Plant Structure, Growth, and Development
    10818
30. Acid, bases and salts
    10365
31. Development
    10282
32. Mirrors and Lenses
    10218
33. Structure of the Atom
    9968
34. Balanced forces
    9962
35. Ancient Civilizations
    9861
36. Mass Spectrometry
    9788
37. Pronouns
    9762
38. Nouns
    9722
39. Resource Acquisition and Transport in Vascular Plants
    9575
40. Forests
    9413
41. Support and transport in plants
    9412
42. Atomic Structure
    9342
43. Cell Types and Cell Structure
    9009
44. Newton’s third law of motion
    8987
45. Animal Nutrition
    8788
46. Transplantation Immunology
    8669
47. Cellular respiration
    8538
48. Sensory and Motor Mechanisms
    8428
49. Growing Plants
    8418
50. Plant Responses to Internal and External Signals
    8296
51. Electrical Circuits
    8288
52. Lab Equipment
    8072
53. Prepositions
    8011
54. Neurons, Synapses, and Signaling
    7966
55. Viruses, Viroids, and Prions
    7927
56. Of Mice and Men
    7872
57. A Tour of the Cell
    7813
58. Basic Structure of a Cell
    7690
59. Real time PCR and it's functions in diagnosis
    7664
60. Covalent Bonding (Molecules)
    7611
61. Plant structure adaptations and responses
    7568
62. Cellular Division
    7481
63. Ionic Bonding
    7475
64. Mendelian Genetics
    7134
65. To Kill a Mockingbird
    7113
66. Satellite Orbits and Uses NIS
    7075
67. Blood Type Genetics
    7061
68. Sound
    7024
69. Molecules and Ions
    6940
70. Well logging The Bore Hole
    6938
71. The Immune System
    6921
72. Membrane Structure and Function
    6849
73. Animal Reproduction
    6789
74. Angiosperm Reproduction and Biotechnology
    6723
75. The Chemistry of Acids and Bases
    6719
76. Plant Diversity
    6651
77. Mendel and the Gene Idea
    6646
78. Rocks
    6632
79. Cell Communication
    6619
80. Balancing Chemical Equations
    6525
81. Rate Laws
    6396
82. Introduction to Oscillations and Simple Harmonic Motion
    6369
83. Drama
    6358
84. Hybridization of Orbitals
    6341
85. The Building Blocks of Matter Atoms
    6288
86. Empirical Formula
    6230
87. An Introduction to Metabolism
    6219
88. Electron Quantum Numbers
    6201
89. Translation. Protein from RNA
    6106
90. Neurons
    6071
91. The Structure and Function of Large Biological Molecules
    6055
92. Photosynthesis
    5975
93. The Mole
    5925
94. Cell Membrane + Tissues & Organs Definitions
    5913
95. Earthquakes
    5863
96. Karyotypes
    5854
97. ADP, ATP and Cellular Respiration
    5822
98. Endocrine System
    5765
99. Classical greek philosophy
    5733
100. Population Ecology
     5713

Research and Development, Experimental aerospace engineering center in Serbia (Space Technologies)