| Click the Planet | 0 | - | 4.96 | 90,111 |
| International Scientific Units | 0 | - | 4.95 | 155,073 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,045 |
| English Words Formed by Latin and Greek Roots | 0 | - | 4.46 | 66,875 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,217,859 |
| Elements by Symbol Quiz | 0 | - | 4.92 | 195,267 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,449 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,347 |
| Noble Gases | 0 | - | 4.89 | 77,333 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 63,963 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,755 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,744 |
| Name the Virus | 0 | - | 4.86 | 76,174 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,885 |
| Top World Languages | 0 | - | 4.92 | 812,185 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,721 |
| Famous Scientists | 0 | - | 4.57 | 42,390 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,537 |
| Elemental Words | 0 | - | 4.96 | 51,935 |
| Metals of Antiquity | 0 | - | 4.94 | 92,822 |
| Countries by Official Language | 0 | - | 4.95 | 192,618 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,298 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,907 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,928 |
| Countries in their Native Language | 0 | - | 4.99 | 196,501 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,536 |
| Official European Union Languages | 0 | - | 4.97 | 236,383 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,616 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,676 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,180 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.98 | 114,987 |
| Wikipedia Languages | 0 | - | 4.97 | 126,447 |
| All Romance Languages on a Map | 0 | - | 4.98 | 71,620 |
| Countries of the World in All Featured Languages | 0 | - | 4.99 | 34,511 |
| Identify the Language on the World Map #1 | 0 | - | 5.00 | 58,880 |
| Random Symbol to Element | 0 | - | 4.88 | 92,124 |
| Astronomy Quiz | 0 | - | 4.89 | 81,595 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,594 |
| Solar System Trivia | 0 | - | 4.93 | 45,930 |
| Spanish to English Country Names | 0 | - | 4.85 | 31,924 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,252 |
| Top Five Languages by Language Family | 0 | - | 4.99 | 53,297 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,596 |
| All Wikipedia Languages | 0 | - | 4.94 | 27,642 |
| Identify the Language on the World Map #2 | 0 | - | 4.94 | 25,381 |
| German-Speaking Countries | 0 | - | 4.89 | 123,480 |
| French-Speaking Countries | 0 | - | 4.85 | 268,647 |
| French Vocabulary Mega-Challenge | 0 | - | 4.87 | 118,984 |
| Click Timeline: Countries Independence | 0 | - | 4.91 | 61,203 |
| Click Timeline: Fictional Characters #1 | 0 | - | 4.97 | 82,046 |
| Country to Population Click Quiz | 0 | - | 4.98 | 42,795 |
| Scientific Names | 0 | - | 4.32 | 78,102 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 85,987 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,895 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,128 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,158 |
| Body Part Cliches | 0 | - | 4.43 | 122,881 |
| Medical Conditions Quiz | 0 | - | 4.78 | 122,998 |
| Click the Chemical Element | 0 | - | 4.96 | 79,159 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,976 |
| English Speaking Countries | 0 | - | 4.68 | 355,915 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,553 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,035 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,207 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,996 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,219 |
| Click Timeline: Famous Buildings | 0 | - | 4.95 | 61,096 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 39,990 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,995 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,333 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,550 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,120 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,214 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,042 |
| Word Chain - Science | 0 | - | 4.59 | 54,358 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,329 |
| Science Multiple Choice #2 | 0 | - | 4.40 | 36,300 |
| Science Multiple Choice #3 | 0 | - | 4.38 | 34,339 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,241 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,568 |
| The Sun Quiz | 0 | - | 4.93 | 34,048 |
| Environmental Issues | 0 | - | 4.54 | 26,710 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,226 |
| First Names of Scientists | 0 | - | 4.50 | 56,432 |
| Groups of Two - Science | 0 | - | 4.26 | 48,120 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,341 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,625 |
| Science Decoder | 0 | - | 4.52 | 28,637 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,143 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,079 |
| Science True or False | 0 | - | 4.35 | 39,934 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,809 |
| Elements by Picture | 0 | - | 4.27 | 69,495 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,126 |
| Name a Valid Element | 0 | - | 4.64 | 69,516 |
| Medical Acronyms | 0 | - | 4.43 | 95,727 |
| Medical Vocabulary | 0 | - | 4.54 | 58,475 |
| Slavic Languages | 0 | - | 4.67 | 53,937 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,413 |
| Translations of John | 0 | - | 4.53 | 26,796 |
| Spanish Animal Words | 0 | - | 4.53 | 95,335 |
| U.S. Cities with the Most Spanish Speakers | 0 | - | 4.50 | 39,890 |
| Italian Name Translation | 0 | - | 4.80 | 44,922 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,399 |
| French Animal Words | 0 | - | 4.44 | 133,589 |
| French Food Words | 0 | - | 4.78 | 193,395 |
| Word Addition Click Quiz #1 | 0 | - | 4.70 | 49,087 |
| Birthstones by Month | 0 | - | 4.41 | 80,458 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,346 |
| Albert Einstein Trivia | 0 | - | 4.57 | 18,305 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,252 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,684 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,075 |
| Element... or Pokémon? | 0 | - | 4.98 | 130,022 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 27,571 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,109 |
| Planets - Multiple Choice | 0 | - | 4.41 | 53,108 |
| Body Part Words | 0 | - | 4.43 | 145,084 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,614 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,709 |
| Three Letter Body Parts | 0 | - | 4.39 | 204,783 |
| Human Body A-Z | 0 | - | 4.51 | 128,198 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,614 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,058 |
| Medical Specialties | 0 | - | 4.29 | 90,846 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,448 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,373 |
| Spanish Name Translation | 0 | - | 4.14 | 167,914 |
| Spanish Food Words | 0 | - | 4.64 | 248,630 |
| Italian Food Words | 0 | - | 4.29 | 70,740 |
| The Pluto Quiz | 0 | - | 4.60 | 9,770 |
| Citrus Fruits | 0 | - | 3.65 | 41,939 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,174 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.78 | 70,262 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,174 |
| Astronomy Decoder | 0 | - | 4.50 | 37,817 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,380 |
| The Mars Quiz | 0 | - | 4.54 | 18,571 |
| The Saturn Quiz | 0 | - | 4.54 | 11,494 |
| The Diseases They Had | 0 | - | 4.15 | 13,877 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,624 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,614 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,038 |
| Spanish Loan Words | 0 | - | 4.23 | 45,757 |
| TV Title Translation - Spanish | 0 | - | 4.14 | 11,898 |
| English Words of Italian Origin | 0 | - | 4.14 | 67,246 |
| French Phrases used in English | 0 | - | 4.16 | 46,522 |
| TV Title Translation - French | 0 | - | 4.25 | 25,863 |
| English Words of Russian Origin | 0 | - | 4.14 | 50,776 |
| The Venus Quiz | 0 | - | 4.19 | 6,883 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,329 |
| Name the Constellations | 0 | - | 4.58 | 44,628 |
| Astronomy True or False | 0 | - | 4.38 | 36,239 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,419 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,468 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,027 |
| Hebrew Letters Quiz | 0 | - | 4.38 | 13,666 |
| Language Origins of Popular First Names | 0 | - | 3.85 | 20,749 |
| Rhyme Time - Spanish | 0 | - | 4.17 | 14,054 |
| Elements Named for Countries | 0 | - | 4.52 | 24,353 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,926 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,341 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,296 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,824 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,753 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,523 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,094 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,195 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,444 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,758 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,674 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,047 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,333 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,562 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,379 |
| Least-Forested Countries | 0 | - | 4.53 | 64,873 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,150 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,149 |
| Most Forested European Countries | 0 | - | 4.80 | 74,866 |
| Least Forested European Countries | 0 | - | 4.25 | 53,765 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,390 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,656 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,296 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,675 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,415 |
| Countries with Glaciers | 0 | - | 4.97 | 104,604 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,058 |
| What's That Dutch Compound Word? | 0 | - | 4.93 | 27,961 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,711 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,288 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,255 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,724 |
| Random Translations Quiz #1 | 0 | - | 3.65 | 37,648 |
| Official Languages of the World | 0 | - | 4.99 | 410,879 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,644 |
| Random Name Translation | 0 | - | 4.52 | 42,098 |
| Random Translations Quiz #2 | 0 | - | 4.17 | 37,411 |
| Random Translations Quiz #3 | 0 | - | 4.00 | 32,786 |
