| International Scientific Units | 0 | - | 4.96 | 146,378 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 59,300 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,074,803 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 75,398 |
| Famous Scientists | 0 | - | 4.57 | 41,116 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 184,754 |
| Speed Symbol by Element | 0 | - | 4.91 | 97,073 |
| Chemical Elements with Short Names | 0 | - | 4.82 | 89,427 |
| Noble Gases | 0 | - | 4.89 | 72,788 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 60,697 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 61,648 |
| Elements with One-Letter Symbols | 0 | - | 4.81 | 75,892 |
| Name the Virus | 0 | - | 4.86 | 73,910 |
| Scientific Names | 0 | - | 4.34 | 76,399 |
| Simple Machines Quiz | 0 | - | 4.35 | 8,708 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 51,075 |
| Elemental Words | 0 | - | 4.96 | 49,855 |
| Metals of Antiquity | 0 | - | 4.94 | 89,177 |
| Body Parts - Sudden Death | 0 | - | 4.84 | 46,589 |
| Bones - Sudden Death | 0 | - | 4.92 | 37,468 |
| Elements - Sudden Death | 0 | - | 4.94 | 94,315 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.94 | 30,679 |
| Science Multiple Choice #1 | 0 | - | 4.55 | 82,987 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 177,115 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 60,040 |
| Body Part Cliches | 0 | - | 4.44 | 121,180 |
| Medical Conditions Quiz | 0 | - | 4.78 | 119,481 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 34,760 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 32,730 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,344 |
| Random Symbol to Element | 0 | - | 4.88 | 87,632 |
| Astronomy Quiz | 0 | - | 4.89 | 76,470 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 125,891 |
| Solar System Trivia | 0 | - | 4.95 | 42,014 |
| Environmental Issues | 0 | - | 4.53 | 26,062 |
| A Quiz About Diamonds | 0 | - | 4.62 | 10,476 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 10,869 |
| Click the Planet | 0 | - | 4.93 | 61,122 |
| Science General Knowledge #1 | 0 | - | 4.53 | 153,683 |
| Science General Knowledge #2 | 0 | - | 4.45 | 102,972 |
| Science General Knowledge #3 | 0 | - | 4.54 | 93,464 |
| Science Vocabulary #2 | 0 | - | 4.52 | 56,895 |
| Word Chain - Science | 0 | - | 4.58 | 52,337 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 36,544 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 145,183 |
| Name a Valid Answer - Science | 0 | - | 4.80 | 36,229 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,036 |
| Click the Chemical Element | 0 | - | 4.96 | 72,658 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,052,032 |
| Groups of Two - Science | 0 | - | 4.27 | 47,154 |
| Science Vocabulary #1 | 0 | - | 4.36 | 68,800 |
| Science Vocabulary #3 | 0 | - | 4.30 | 49,793 |
| Science Decoder | 0 | - | 4.54 | 28,007 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,152 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 26,929 |
| Science True or False | 0 | - | 4.34 | 38,110 |
| Elements by Picture | 0 | - | 4.28 | 66,583 |
| First Names of Scientists | 0 | - | 4.50 | 54,344 |
| Answers are Elements #2 | 0 | - | 4.42 | 53,502 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 89,731 |
| Name a Valid Element | 0 | - | 4.64 | 66,716 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 33,425 |
| Medical Acronyms | 0 | - | 4.42 | 91,835 |
| Medical Vocabulary | 0 | - | 4.54 | 56,020 |
| Citrus Fruits | 0 | - | 3.60 | 41,261 |
| The Sun Quiz | 0 | - | 4.93 | 31,259 |
| The Diseases They Had | 0 | - | 4.15 | 13,483 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 19,483 |
| "Ologies" Quiz | 0 | - | 4.34 | 92,860 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,788 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 41,152 |
| Answers are Elements #1 | 0 | - | 4.30 | 51,716 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,334 |
| Planets By Picture Quiz | 0 | - | 4.49 | 52,206 |
| Planets - Multiple Choice | 0 | - | 4.43 | 50,159 |
| Body Part Words Quiz | 0 | - | 4.44 | 142,143 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,750 |
| Word Scramble - Body Parts | 0 | - | 4.36 | 172,119 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 201,474 |
| Human Body A-Z | 0 | - | 4.50 | 124,063 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 83,929 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 111,821 |
| Medical Specialties | 0 | - | 4.30 | 87,974 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.65 | 45,016 |
| Birthstones Quiz | 0 | - | 4.41 | 79,052 |
| Element... or Pokémon? | 0 | - | 4.97 | 120,911 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 68,041 |
| Category Elimination - Elements | 0 | - | 4.57 | 50,462 |
| Brightest Objects in the Sky | 0 | - | 4.40 | 16,803 |
| Astronomy Decoder | 0 | - | 4.52 | 36,498 |
| The Jupiter Quiz | 0 | - | 4.64 | 15,816 |
| The Mars Quiz | 0 | - | 4.54 | 17,941 |
| The Saturn Quiz | 0 | - | 4.54 | 11,099 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,710 |
| Body Parts - No Vowels | 0 | - | 4.13 | 23,763 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,347 |
| The Pluto Quiz | 0 | - | 4.63 | 9,307 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 214,166 |
| Name the Constellations Quiz | 0 | - | 4.58 | 42,914 |
| Astronomy True or False | 0 | - | 4.37 | 34,996 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 208,684 |
| The Venus Quiz | 0 | - | 4.15 | 6,597 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.36 | 15,094 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,177 |
| Animals by Skeleton Image | 0 | - | 4.80 | 41,670 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,459 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,574 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,709 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,242 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 100,994 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,671 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.81 | 53,503 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,424 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,399 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,833 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 63,335 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 39,145 |
| Countries with the Most Forest | 0 | - | 4.88 | 141,933 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 34,304 |
| Least-Forested Countries | 0 | - | 4.52 | 62,885 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.62 | 61,508 |
| Countries with the Most Forest A-Z | 0 | - | 4.55 | 53,279 |
| Most Forested European Countries | 0 | - | 4.78 | 72,134 |
| Least Forested European Countries | 0 | - | 4.29 | 52,343 |
| Least Forested Countries in Asia | 0 | - | 4.77 | 62,656 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 36,568 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 44,781 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 79,606 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.56 | 46,052 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,203 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 32,531 |
| Elements Named for Countries | 0 | - | 4.51 | 21,940 |
| Countries with Glaciers | 0 | - | 4.97 | 100,568 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,183 |
