| 101. | Why do people say bless you when you sneeze? | 1,596 | |
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| 102. | Ring of Fire Bloons Light me on Fire TD 5 BTD5 | 1,571 | | Bloons TD 5
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| 103. | Bloons TD 4 Hard Perfect No Lives Lost DNA Track BTD4 TD4 | 1,566 | | Bloons TD 4
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| 104. | Bloons Tower Defense 4 Tutorial - Track 1 Perfect | 1,557 | | Bloons TD 4
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| 105. | Bloons Tower Defense 4 Expansion - Sewer Track 2 Walkthrough | 1,538 | Walkthrough | Bloons TD 4
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| 106. | Bloons TD 5 Track 7 No Lives Lost Perfect Tower Defense BTD5 | 1,532 | | Bloons TD 5
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| 107. | Addition and Subtraction with Equations Explained | 1,496 | |
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| 108. | All Wizards Bloons No Lives Lost No Tacks TD 5 BTD5 Track 1 Tower Defense | 1,483 | | Bloons TD 5
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| 109. | Bloons TD 5 Track 4 No Lives Lost Tower Defense BTD5 | 1,483 | | Bloons TD 5
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| 110. | Bloons Tower Defense 4 Expansion - Beach Track 1 Walkthrough - No Lives Lost | 1,468 | Walkthrough | Bloons TD 4
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| 111. | Bloons Tower Defense 4 Tutorial - Pool Track | 1,447 | | Bloons TD 4
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| 112. | Three Isotopes of Hydrogen, Deuterium, Tritium | 1,444 | |
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| 113. | Level 85 All Tacks Bloons TD 5 BTD5 Tower Defense | 1,438 | | Bloons TD 5
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| 114. | Bloons Tower Defense 4 Walkthrough - Pool Track Perfect | 1,417 | Walkthrough | Bloons TD 4
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| 115. | Bloons Tower Defense 4 Tutorial - Lollipop Track Perfect | 1,361 | | Bloons TD 4
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| 116. | Bloons TD 5 Track 3 Easy BTD5 Tower Defense | 1,354 | | Bloons TD 5
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| 117. | Bloons TD 5 Track 5 No Lives Lost Perfect Tower Defense BTD5 | 1,354 | | Bloons TD 5
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| 118. | Bloons Tower Defense 4 Walkthrough - DNA Track | 1,349 | Walkthrough | Bloons TD 4
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| 119. | Bloons TD 5 Track 2 No Lives Lost No Tacks Easy BTD5 Tower Defense | 1,283 | | Bloons TD 5
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| 120. | Bloons Tower Defense 4 Walkthrough - Fireworks Track Perfect | 1,282 | Walkthrough | Bloons TD 4
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| 121. | What causes sleep paralysis? | 1,264 | |
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| 122. | Darwins Theory of Evolution and Natural Selection Explained | 1,225 | |
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| 123. | Why do people twitch in their sleep? | 1,195 | |
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| 124. | Bloons Tower Defense 4 Tutorial - DNA Track | 1,189 | | Bloons TD 4
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| 125. | Bloons TD 5 Track 6 No Lives Lost Perfect Tower Defense BTD5 | 1,177 | | Bloons TD 5
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| 126. | Bloons Tower Defense 4 Tutorial - Fireworks Track Perfect | 1,125 | | Bloons TD 4
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| 127. | Why do we eat fish on Good Friday? | 1,122 | |
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| 128. | Funny Cooking Voice Over! - Broccoli and Squid | 1,094 | |
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| 129. | Addition and Subtraction of Negative Numbers | 1,092 | |
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| 130. | Nature Calls Daily Challenge Bloons TD5 BTD5 | 1,003 | | Bloons TD 5
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| 131. | Microscope Drawing Easy with Label | 985 | |
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| 132. | Is there DNA in Urine? | 855 | |
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| 133. | Two of a Kind Daily Challenge Perfect Track 2 Hard No Lives Lost Bloons TD 5 BTD5 | 837 | | Bloons TD 5
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| 134. | Types of Cell Junctions | 786 | |
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| 135. | Heart of the Maelstrom Bloons Daily Challenge TD 5 BTD5 | 715 | | Bloons TD 5
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| 136. | Bloons Super Monkey Walkthrough | 696 | Walkthrough |
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| 137. | Roger That Gold Leader Daily Challenge Perfect No Lives Lost Bloons TD 5 BTD5 Tower Defense | 607 | | Bloons TD 5
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| 138. | Hypotonic Isotonic Hypertonic | 602 | |
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| 139. | It Takes a Village Daily Challenge with $150,000 at End Bloons TD5 BTD5 | 599 | | Bloons TD 5
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| 140. | Classic BTD Bloons TD 5 BTD5 Daily Mission | 528 | | Bloons TD 5
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| 141. | How proteins are folding | 513 | |
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| 142. | Hydrophilic vs Hydrophobic | 513 | |
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| 143. | Time's up Daily Challenge Bloons TD 5 BTD5 Tower Defense | 415 | | Bloons TD 5
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| 144. | Apopalypse Now Daily Challenge Perfect No Lives Lost Bloons TD 5 BTD5 | 382 | | Bloons TD 5
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| 145. | Bloons TD5 Daily Challenge (3/1) - Plumb in Front BTD5 | 365 | | Bloons TD 5
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| 146. | Monkey God Fail on level 85 Hard Difficulty Bloons TD5 full | 355 | | Bloons TD 5
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| 147. | Monkey God Fail on level 85 Hard Difficulty Bloons TD5 | 343 | | Bloons TD 5
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| 148. | How do Water Softeners Work Chemistry | 332 | |
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| 149. | Phospholipid Bilayer | 285 | Vlog |
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| 150. | Why does ICE float on water? Chemistry! | 279 | |
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| 151. | Why do pupils dilate? | 250 | |
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| 152. | Bloons TD 5 Daily Challenge Dart Monkeys a Plenty | 249 | | Bloons TD 5
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| 153. | How many Oz in a lb? | 225 | |
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| 154. | Flamingos dancing to michael jackson Part 2 | 225 | |
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| 155. | Phagocytosis | 211 | |
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| 156. | Why are sloths slow? | 200 | |
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| 157. | Why are some eggs brown? | 195 | |
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| 158. | What are the parts of an atom? | 184 | |
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| 159. | Why are apples good for you? | 175 | |
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| 160. | Elemental Composition of the Human Body | 167 | |
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| 161. | Cohesion vs adhesion | 167 | |
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| 162. | Why do mosquitoes bite some more than others? | 160 | |
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| 163. | Protein synthesis transport and secretion | 139 | |
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| 164. | Why do babies fight sleep? | 117 | |
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| 165. | Why was the eiffel tower built? | 108 | |
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| 166. | Na K Pump | 106 | |
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| 167. | Why do Cats and Dogs have Whiskers? | 96 | |
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| 168. | Mercury in Retrograde Meaning! | 94 | |
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| 169. | pH Chart | 75 | |
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| 170. | Why can't babies have honey? | 75 | |
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| 171. | Franklin Templeton | 74 | |
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| 172. | Chemical Bonds Covalent vs Ionic | 45 | |
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| 173. | Prokaryotic cells vs Eukaryotic cells chart | 43 | |
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| 174. | Why flamingos are pink? | 41 | |
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| 175. | Ocean Acidification | 14 | |
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