| International Scientific Units | 0 | - | 4.95 | 155,359 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,227 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,220,556 |
| Elements by Symbol | 0 | - | 4.92 | 195,520 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,634 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,453 |
| Noble Gases | 0 | - | 4.89 | 77,451 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,048 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,918 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,878 |
| Name the Virus | 0 | - | 4.86 | 76,259 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,838 |
| Famous Scientists | 0 | - | 4.57 | 42,452 |
| Flowers by Picture | 0 | - | 4.46 | 105,011 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,590 |
| Elemental Words | 0 | - | 4.96 | 51,987 |
| Metals of Antiquity | 0 | - | 4.94 | 92,909 |
| Megadiverse Countries | 0 | - | 4.97 | 133,901 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,497 |
| Plants by Picture | 0 | - | 4.24 | 14,334 |
| Scientific Names | 0 | - | 4.32 | 78,163 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,202 |
| Trees in the Answer | 0 | - | 4.25 | 45,738 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,043 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,905 |
| Random Symbol to Element | 0 | - | 4.88 | 92,217 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,300 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,198 |
| Astronomy Quiz | 0 | - | 4.89 | 81,703 |
| Body Part Cliches | 0 | - | 4.43 | 123,055 |
| Bones of the Human Body | 0 | - | 4.56 | 36,929 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,121 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,408 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,963 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,090 |
| Animal Stereotypes | 0 | - | 4.48 | 36,779 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,378 |
| Countries with Fjords | 0 | - | 4.93 | 100,202 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,279 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,179 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,064 |
| World's Longest Rivers | 0 | - | 4.87 | 121,062 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,801 |
| 3 and 4 Letter Trees | 0 | - | 4.21 | 17,184 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,102 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,467 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,628 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,197 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,258 |
| Word Chain - Science | 0 | - | 4.59 | 54,396 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,357 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,340 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,713 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,739 |
| Environmental Issues | 0 | - | 4.54 | 26,721 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,409 |
| Types of Bears | 0 | - | 4.51 | 143,093 |
| Deadly Animals | 0 | - | 4.03 | 109,892 |
| Famous Animals #1 | 0 | - | 4.03 | 238,818 |
| Famous Animals #2 | 0 | - | 4.02 | 57,323 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,148 |
| Animal Facts | 0 | - | 4.15 | 42,907 |
| Cat Knowledge | 0 | - | 4.49 | 25,721 |
| Bear Knowledge | 0 | - | 4.54 | 34,985 |
| Cow Knowledge | 0 | - | 4.46 | 24,163 |
| Elephant Knowledge | 0 | - | 4.41 | 23,899 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,979 |
| Human Taxonomy | 0 | - | 4.68 | 18,842 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,440 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,646 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,861 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,601 |
| Countries With No Rivers | 0 | - | 4.96 | 76,028 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,246 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,742 |
| North Sea Countries | 0 | - | 4.92 | 86,605 |
| Black Sea Countries | 0 | - | 4.87 | 60,341 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,017 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,111 |
| Seas on the World Map | 0 | - | 4.96 | 133,820 |
| Seas of the World | 0 | - | 5.00 | 154,356 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,182 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,953 |
| First Names of Scientists | 0 | - | 4.50 | 56,461 |
| Groups of Two - Science | 0 | - | 4.26 | 48,144 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,384 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,659 |
| Science Decoder | 0 | - | 4.52 | 28,650 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,158 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,826 |
| Elements by Picture | 0 | - | 4.28 | 69,550 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,195 |
| Name a Valid Element | 0 | - | 4.64 | 69,575 |
| Medical Acronyms | 0 | - | 4.43 | 96,181 |
| Medical Vocabulary | 0 | - | 4.54 | 58,537 |
| French Animal Words | 0 | - | 4.44 | 133,666 |
| Spanish Animal Words | 0 | - | 4.53 | 95,370 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,385 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,351 |
| Name that Bug | 0 | - | 4.12 | 45,450 |
| Pack Animals | 0 | - | 4.23 | 10,333 |
| Lion Trivia | 0 | - | 4.19 | 16,368 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,599 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,450 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,304 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,912 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,515 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,582 |
| Bird in the Answers | 0 | - | 4.10 | 33,281 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,105 |
| Horse Knowledge | 0 | - | 4.45 | 23,942 |
| Snake Knowledge | 0 | - | 4.49 | 18,726 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,337 |
| Geologic Time Scale | 0 | - | 4.46 | 9,920 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,227 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,687 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,705 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,910 |
| Birthstones by Month | 0 | - | 4.41 | 80,483 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,386 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,314 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,296 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,702 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,088 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 27,731 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,191 |
| Body Part Words | 0 | - | 4.43 | 145,226 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,665 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,804 |
| Three Letter Body Parts | 0 | - | 4.40 | 204,914 |
| Human Body A-Z | 0 | - | 4.51 | 128,401 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,731 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,410 |
| Medical Specialties | 0 | - | 4.29 | 90,898 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,515 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,812 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,490 |
| Animals that Start with L | 0 | - | 4.47 | 101,271 |
| Animals that Start with P | 0 | - | 4.45 | 85,651 |
| Animals that Start with S | 0 | - | 4.49 | 86,825 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,733 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,157 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,151 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,455 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,998 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,110 |
| Famous Rivers | 0 | - | 4.74 | 104,524 |
| City to River #1 | 0 | - | 4.59 | 35,745 |
| Most Populous River Basins | 0 | - | 4.61 | 39,547 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,120 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,928 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,759 |
| Citrus Fruits | 0 | - | 3.65 | 41,950 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.78 | 70,306 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,234 |
| Astronomy Decoder | 0 | - | 4.50 | 37,845 |
| The Mars Quiz | 0 | - | 4.55 | 18,576 |
| The Diseases They Had | 0 | - | 4.15 | 13,887 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,657 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,635 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,339 |
| Words that are Animals | 0 | - | 3.88 | 41,409 |
| Extinct Animals | 0 | - | 4.18 | 27,404 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,049 |
| Primate Knowledge | 0 | - | 4.17 | 15,263 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,228 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,209 |
| Animals in the News | 0 | - | 4.37 | 26,718 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,389 |
| Largest Types of Birds | 0 | - | 4.19 | 26,892 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,686 |
| Fish Knowledge | 0 | - | 4.38 | 25,492 |
| Animals that Start with A | 0 | - | 4.26 | 111,297 |
| Animals that Start with B | 0 | - | 4.31 | 113,101 |
| Animals that Start with C | 0 | - | 4.23 | 92,286 |
| Animals that Start with D | 0 | - | 4.25 | 86,179 |
| Animals that Start with E | 0 | - | 4.28 | 73,427 |
| Animals that Start with F | 0 | - | 4.28 | 106,544 |
| Animals that Start with G | 0 | - | 4.25 | 79,692 |
| Animals that Start with K | 0 | - | 4.06 | 66,203 |
| Animals that Start with M | 0 | - | 4.24 | 83,570 |
| Animals that Start with R | 0 | - | 4.27 | 86,630 |
| Animals that Start with T | 0 | - | 4.32 | 90,651 |
| Animals that Start with H | 0 | - | 4.31 | 85,892 |
| Animals that Start with O | 0 | - | 4.27 | 88,221 |
| Animals that Start with W | 0 | - | 4.35 | 46,848 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,979 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,996 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,915 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,318 |
| Biggest City by River | 0 | - | 4.41 | 52,696 |
| Rivers by City | 0 | - | 4.38 | 31,635 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,782 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,922 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,189 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,577 |
| Name the Constellations | 0 | - | 4.58 | 44,658 |
| Astronomy True or False | 0 | - | 4.38 | 36,266 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,566 |
| Most Common Body Part Words | 0 | - | 3.91 | 31,529 |
