| Name the Virus | 0 | - | 4.87 | 74,793 |
| Medical Conditions Quiz | 0 | - | 4.78 | 121,018 |
| International Scientific Units | 0 | - | 4.96 | 149,683 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 60,311 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 37,216 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,133,242 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 188,793 |
| Speed Symbol by Element | 0 | - | 4.92 | 99,760 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 90,978 |
| Noble Gases | 0 | - | 4.89 | 74,708 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 62,043 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 65,334 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 77,761 |
| Medical Vocabulary | 0 | - | 4.54 | 56,990 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 77,096 |
| Famous Scientists | 0 | - | 4.56 | 41,591 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 46,025 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.90 | 41,968 |
| Things Named For People #3 - Science | 0 | - | 4.84 | 51,980 |
| Elemental Words | 0 | - | 4.96 | 50,666 |
| Metals of Antiquity | 0 | - | 4.93 | 90,562 |
| Medical Specialties | 0 | - | 4.29 | 88,838 |
| The Diseases They Had | 0 | - | 4.15 | 13,644 |
| Body Parts - Sudden Death | 0 | - | 4.87 | 52,569 |
| Bones - Sudden Death | 0 | - | 4.93 | 42,079 |
| Elements - Sudden Death | 0 | - | 4.92 | 106,953 |
| Scientific Names | 0 | - | 4.32 | 77,085 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,842 |
| First Twenty Elements - Sudden Death | 0 | - | 4.81 | 29,084 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 84,144 |
| Random Symbol to Element | 0 | - | 4.88 | 89,625 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 180,642 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.79 | 60,892 |
| Astronomy Quiz | 0 | - | 4.89 | 78,193 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 129,474 |
| Solar System Trivia | 0 | - | 4.93 | 43,397 |
| Body Part Cliches | 0 | - | 4.43 | 121,704 |
| Click the Planet | 0 | - | 4.92 | 63,575 |
| Simple Machines Quiz | 0 | - | 4.35 | 8,845 |
| Click the Chemical Element | 0 | - | 4.96 | 75,280 |
| Science General Knowledge #1 | 0 | - | 4.52 | 157,883 |
| Science General Knowledge #2 | 0 | - | 4.45 | 105,431 |
| Science General Knowledge #3 | 0 | - | 4.54 | 95,544 |
| Science Vocabulary #2 | 0 | - | 4.52 | 57,758 |
| Word Chain - Science | 0 | - | 4.58 | 53,101 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 35,381 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 33,343 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 147,102 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,549 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,066,333 |
| Environmental Issues | 0 | - | 4.53 | 26,321 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 37,637 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,384 |
| A Quiz About Diamonds | 0 | - | 4.63 | 10,816 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 11,360 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 34,130 |
| The Sun Quiz | 0 | - | 4.93 | 32,201 |
| First Names of Scientists | 0 | - | 4.50 | 55,197 |
| Groups of Two - Science | 0 | - | 4.25 | 47,522 |
| Science Vocabulary #1 | 0 | - | 4.33 | 69,741 |
| Science Vocabulary #3 | 0 | - | 4.31 | 50,495 |
| Science Decoder | 0 | - | 4.54 | 28,253 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,523 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 27,393 |
| Science True or False | 0 | - | 4.34 | 38,860 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,000 |
| Elements by Picture | 0 | - | 4.27 | 67,692 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 96,101 |
| Name a Valid Element | 0 | - | 4.64 | 67,818 |
| Medical Acronyms | 0 | - | 4.42 | 93,345 |
| "Ologies" Quiz | 0 | - | 4.33 | 94,202 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,985 |
| Fish... or Not a Fish? | 0 | - | 4.44 | 41,908 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,120 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,622 |
| Element... or Pokémon? | 0 | - | 4.98 | 124,259 |
| Brightest Objects in the Sky | 0 | - | 4.41 | 17,018 |
| Planets By Picture Quiz | 0 | - | 4.50 | 53,548 |
| Planets - Multiple Choice | 0 | - | 4.43 | 51,100 |
| Body Part Words Quiz | 0 | - | 4.44 | 143,215 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,116 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 173,467 |
| Three Letter Body Parts | 0 | - | 4.39 | 203,057 |
| Human Body A-Z | 0 | - | 4.50 | 125,398 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 85,453 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 114,687 |
| Birthstones Quiz | 0 | - | 4.41 | 79,640 |
| Citrus Fruits | 0 | - | 3.62 | 41,531 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 68,906 |
| Category Elimination - Elements | 0 | - | 4.57 | 51,555 |
| Astronomy Decoder | 0 | - | 4.52 | 36,967 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,022 |
| The Mars Quiz | 0 | - | 4.54 | 18,175 |
| The Saturn Quiz | 0 | - | 4.54 | 11,232 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 19,963 |
| The Pluto Quiz | 0 | - | 4.63 | 9,464 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 215,912 |
| Name the Constellations Quiz | 0 | - | 4.58 | 43,463 |
| Astronomy True or False | 0 | - | 4.37 | 35,466 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 211,034 |
| Most Common Body Part Words | 0 | - | 3.92 | 31,041 |
| Body Parts - No Vowels | 0 | - | 4.14 | 24,340 |
| The Venus Quiz | 0 | - | 4.15 | 6,696 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.37 | 15,911 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,309 |
| Animals by Skeleton Image | 0 | - | 4.81 | 43,502 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,796 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,867 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 42,578 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,440 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 108,409 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,874 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.88 | 62,269 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,863 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,927 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,139 |
| Worst Plastic Polluting Countries | 0 | - | 4.53 | 64,518 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 40,016 |
| Countries with the Most Forest | 0 | - | 4.88 | 143,870 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.30 | 34,558 |
| Least-Forested Countries | 0 | - | 4.52 | 63,729 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.61 | 62,148 |
| Countries with the Most Forest A-Z | 0 | - | 4.61 | 53,956 |
| Most Forested European Countries | 0 | - | 4.78 | 73,122 |
| Least Forested European Countries | 0 | - | 4.27 | 52,920 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 63,312 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.57 | 37,033 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 45,262 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 80,464 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 54,443 |
| Countries with Glaciers | 0 | - | 4.97 | 102,211 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,293 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,893 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 33,550 |
| Elements Named for Countries | 0 | - | 4.51 | 22,889 |
