Top 100 presentations

1. Continuous Verb Tenses
   34420
2. Support and transport in plants
   33169
3. Anyong Tubig Anyong Lupa sa Asya
   28808
4. Elements compounds and mixtures
   25450
5. Chromosome
   20834
6. Simple Verb Tenses
   20538
7. Balancing Chemical Equations. Balancing redox equations
   19531
8. Periodic Behavior
   19446
9. Atomic Structure
   19293
10. Newton’s laws of motion
    18265
11. Periodic Trends
    16462
12. Adverbs
    16453
13. Percent Composition, Empirical and Molecular Formulas
    15751
14. Animal Farm
    15368
15. Bonding, Molecular Shape & Structure
    14084
16. MakingFood
    13028
17. Circulation and Gas Exchange
    12783
18. Fungi
    12568
19. Volumetric
    12304
20. Feminism- Cure or Curse
    12277
21. Atomic Structure and Periodic Trends
    12275
22. Atomic Structure and Periodicity
    12048
23. DNA - An overview
    12042
24. Hormones and the Endocrine System
    11544
25. Derivation Applications of Bernoulli Principal
    11367
26. Animal Development
    11226
27. Osmoregulation and Excretion
    10856
28. Plasma Membrane-Gateway to the Cell
    10326
29. Plant Structure, Growth, and Development
    10093
30. Acid, bases and salts
    9706
31. Development
    9652
32. Balanced forces
    9613
33. Pronouns
    9580
34. Mirrors and Lenses
    9540
35. Structure of the Atom
    9530
36. Mass Spectrometry
    9529
37. Nouns
    9460
38. Ancient Civilizations
    9403
39. Forests
    9083
40. Support and transport in plants
    8993
41. Atomic Structure
    8985
42. Cell Types and Cell Structure
    8762
43. Resource Acquisition and Transport in Vascular Plants
    8649
44. Newton’s third law of motion
    8513
45. Transplantation Immunology
    8285
46. Animal Nutrition
    8238
47. Cellular respiration
    8217
48. Electrical Circuits
    7987
49. Growing Plants
    7987
50. Prepositions
    7849
51. Viruses, Viroids, and Prions
    7572
52. Plant Responses to Internal and External Signals
    7544
53. Sensory and Motor Mechanisms
    7532
54. Of Mice and Men
    7518
55. Basic Structure of a Cell
    7418
56. Plant structure adaptations and responses
    7391
57. Covalent Bonding (Molecules)
    7377
58. Lab Equipment
    7355
59. Real time PCR and it's functions in diagnosis
    7349
60. Ionic Bonding
    7255
61. Neurons, Synapses, and Signaling
    7202
62. A Tour of the Cell
    7001
63. Cellular Division
    6806
64. To Kill a Mockingbird
    6783
65. Blood Type Genetics
    6778
66. Molecules and Ions
    6747
67. Satellite Orbits and Uses NIS
    6671
68. Well logging The Bore Hole
    6606
69. The Immune System
    6432
70. Mendelian Genetics
    6400
71. Rocks
    6340
72. Balancing Chemical Equations
    6307
73. The Chemistry of Acids and Bases
    6307
74. Animal Reproduction
    6251
75. Membrane Structure and Function
    6144
76. Rate Laws
    6129
77. Hybridization of Orbitals
    6126
78. Sound
    6105
79. Drama
    6102
80. Angiosperm Reproduction and Biotechnology
    6097
81. Plant Diversity
    6033
82. Introduction to Oscillations and Simple Harmonic Motion
    6011
83. Empirical Formula
    5997
84. The Building Blocks of Matter Atoms
    5978
85. Translation. Protein from RNA
    5963
86. Electron Quantum Numbers
    5951
87. Cell Communication
    5922
88. Mendel and the Gene Idea
    5888
89. Neurons
    5857
90. An Introduction to Metabolism
    5720
91. The Mole
    5701
92. ADP, ATP and Cellular Respiration
    5649
93. Endocrine System
    5648
94. Earthquakes
    5626
95. Karyotypes
    5605
96. Cell Membrane + Tissues & Organs Definitions
    5561
97. The Structure and Function of Large Biological Molecules
    5539
98. Conjunction
    5491
99. Classical greek philosophy
    5394
100. Evolution
     5353

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