| International Scientific Units | 0 | - | 4.95 | 158,359 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,341 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,260,990 |
| Elements by Symbol | 0 | - | 4.92 | 198,677 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,586 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,797 |
| Noble Gases | 0 | - | 4.89 | 78,845 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,083 |
| Periodic Table Symbols | 0 | - | 4.97 | 80,708 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,431 |
| Name the Virus | 0 | - | 4.87 | 77,124 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,144 |
| Famous Scientists | 0 | - | 4.58 | 42,859 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,288 |
| Elemental Words | 0 | - | 4.97 | 52,561 |
| Metals of Antiquity | 0 | - | 4.95 | 93,936 |
| Megadiverse Countries | 0 | - | 4.96 | 135,291 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,134 |
| Scientific Names | 0 | - | 4.32 | 78,734 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,750 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,983 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,094 |
| Random Symbol to Element | 0 | - | 4.88 | 94,041 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,780 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,836 |
| Astronomy Quiz | 0 | - | 4.90 | 83,310 |
| Body Part Cliches | 0 | - | 4.44 | 123,671 |
| Bones of the Human Body | 0 | - | 4.51 | 43,598 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,916 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,225 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,163 |
| Animal Varieties #3 | 0 | - | 4.50 | 55,615 |
| Animal Stereotypes | 0 | - | 4.48 | 37,501 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,048 |
| Countries with Fjords | 0 | - | 4.94 | 101,334 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,908 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,710 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,162 |
| World's Longest Rivers | 0 | - | 4.89 | 137,632 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,528 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,447 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,374 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,688 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,610 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,966 |
| Word Chain - Science | 0 | - | 4.59 | 55,162 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,960 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,764 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,489 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,612 |
| Environmental Issues | 0 | - | 4.54 | 26,911 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,877 |
| Types of Bears | 0 | - | 4.50 | 143,944 |
| Deadly Animals | 0 | - | 4.02 | 110,810 |
| Famous Animals #1 | 0 | - | 4.03 | 239,988 |
| Famous Animals #2 | 0 | - | 4.02 | 57,591 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,419 |
| Animal Facts | 0 | - | 4.15 | 43,045 |
| Cat Knowledge | 0 | - | 4.49 | 25,880 |
| Bear Knowledge | 0 | - | 4.54 | 35,170 |
| Cow Knowledge | 0 | - | 4.46 | 24,313 |
| Elephant Knowledge | 0 | - | 4.41 | 24,011 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,360 |
| Human Taxonomy | 0 | - | 4.70 | 18,994 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,885 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,219 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,342 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,893 |
| Countries With No Rivers | 0 | - | 4.96 | 77,147 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,026 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,179 |
| North Sea Countries | 0 | - | 4.92 | 87,705 |
| Black Sea Countries | 0 | - | 4.87 | 60,749 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,591 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,681 |
| Seas on the World Map | 0 | - | 4.96 | 135,984 |
| Seas of the World | 0 | - | 5.00 | 158,519 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,372 |
| First Names of Scientists | 0 | - | 4.51 | 57,229 |
| Groups of Two - Science | 0 | - | 4.26 | 48,468 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,189 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,235 |
| Science Decoder | 0 | - | 4.52 | 28,862 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,516 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,207 |
| Elements by Picture | 0 | - | 4.27 | 70,327 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 103,507 |
| Name a Valid Element | 0 | - | 4.68 | 70,416 |
| Medical Acronyms | 0 | - | 4.43 | 97,260 |
| Medical Vocabulary | 0 | - | 4.54 | 59,488 |
| French Animal Words | 0 | - | 4.44 | 135,000 |
| Spanish Animal Words | 0 | - | 4.53 | 95,984 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,624 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,498 |
| Name that Bug | 0 | - | 4.12 | 45,645 |
| Pack Animals | 0 | - | 4.20 | 10,442 |
| Lion Trivia | 0 | - | 4.19 | 16,440 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,728 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,571 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,455 |
| Insect Knowledge #2 | 0 | - | 4.22 | 9,013 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,824 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,380 |
| Bird in the Answers | 0 | - | 4.11 | 33,964 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,246 |
| Horse Knowledge | 0 | - | 4.46 | 24,137 |
| Snake Knowledge | 0 | - | 4.49 | 18,876 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,631 |
| Geologic Time Scale | 0 | - | 4.41 | 10,067 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,009 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,161 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,989 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,822 |
| Birthstones by Month | 0 | - | 4.44 | 88,148 |
| "Ologies" Quiz | 0 | - | 4.34 | 97,530 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,475 |
| Name the Metal Alloy | 0 | - | 4.73 | 14,061 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,972 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,327 |
| Brightest Natural Objects in the Sky | 0 | - | 4.46 | 28,640 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,393 |
| Body Part Words | 0 | - | 4.43 | 146,403 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,958 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 177,085 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,916 |
| Human Body A-Z | 0 | - | 4.51 | 130,055 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 88,549 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,929 |
| Medical Specialties | 0 | - | 4.33 | 92,315 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,247 |
| Animals: No Vowels #2 | 0 | - | 4.51 | 22,780 |
| Animals that Start with L | 0 | - | 4.47 | 102,449 |
| Animals that Start with P | 0 | - | 4.45 | 86,483 |
| Animals that Start with S | 0 | - | 4.49 | 87,676 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,850 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,311 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,289 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,729 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,930 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,668 |
| Famous Rivers | 0 | - | 4.75 | 105,252 |
| City to River #1 | 0 | - | 4.59 | 35,903 |
| Most Populous River Basins | 0 | - | 4.55 | 39,818 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,487 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,123 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,266 |
| Flowers by Picture | 0 | - | 4.46 | 105,869 |
| Citrus Fruits | 0 | - | 3.67 | 42,195 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,967 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,123 |
| Astronomy Decoder | 0 | - | 4.48 | 38,233 |
| The Mars Quiz | 0 | - | 4.55 | 18,738 |
| The Saturn Quiz | 0 | - | 4.54 | 11,596 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,827 |
| The Diseases They Had | 0 | - | 4.15 | 14,073 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,184 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,961 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,472 |
| Words that are Animals | 0 | - | 3.85 | 41,515 |
| Extinct Animals | 0 | - | 4.13 | 27,579 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,923 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,530 |
| Primate Knowledge | 0 | - | 4.17 | 15,350 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,386 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,310 |
| Animals in the News | 0 | - | 4.37 | 26,839 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,515 |
| Largest Types of Birds | 0 | - | 4.19 | 27,024 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,783 |
| Fish Knowledge | 0 | - | 4.38 | 25,748 |
| Animals that Start with A | 0 | - | 4.26 | 112,457 |
| Animals that Start with B | 0 | - | 4.31 | 114,159 |
| Animals that Start with C | 0 | - | 4.21 | 93,546 |
| Animals that Start with D | 0 | - | 4.25 | 87,279 |
| Animals that Start with E | 0 | - | 4.28 | 74,186 |
| Animals that Start with F | 0 | - | 4.28 | 107,455 |
| Animals that Start with G | 0 | - | 4.25 | 80,399 |
| Animals that Start with K | 0 | - | 4.07 | 66,749 |
| Animals that Start with M | 0 | - | 4.23 | 84,287 |
| Animals that Start with R | 0 | - | 4.28 | 87,674 |
| Animals that Start with T | 0 | - | 4.32 | 92,121 |
| Animals that Start with H | 0 | - | 4.31 | 86,584 |
| Animals that Start with O | 0 | - | 4.27 | 88,829 |
| Animals that Start with W | 0 | - | 4.36 | 47,371 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,034 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,412 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,076 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,739 |
| Rivers by City | 0 | - | 4.38 | 31,779 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,230 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,087 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,158 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,367 |
| Plants by Picture | 0 | - | 4.24 | 14,523 |
| Trees in the Answer | 0 | - | 4.23 | 45,938 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 227,749 |
| Name the Constellations | 0 | - | 4.63 | 48,175 |
| Astronomy True or False | 0 | - | 4.39 | 36,611 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,463 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,572 |
