| Medical Conditions Quiz | 0 | - | 4.81 | 117,005 |
| Name the Virus | 0 | - | 4.86 | 72,411 |
| International Scientific Units | 0 | - | 4.96 | 140,117 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 57,343 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 35,232 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,962,485 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 176,857 |
| Speed Symbol by Element | 0 | - | 4.90 | 92,035 |
| Noble Gases | 0 | - | 4.87 | 69,790 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 58,465 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 53,700 |
| Medical Vocabulary | 0 | - | 4.53 | 54,166 |
| Major Taxonomic Ranks | 0 | - | 4.65 | 72,032 |
| Famous Scientists | 0 | - | 4.59 | 40,157 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,172 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,816 |
| Elemental Words | 0 | - | 4.96 | 47,942 |
| Metals of Antiquity | 0 | - | 4.93 | 86,313 |
| Medical Specialties | 0 | - | 4.30 | 85,947 |
| The Diseases They Had | 0 | - | 4.15 | 13,204 |
| Elements - Sudden Death | 0 | - | 4.92 | 70,828 |
| Scientific Names | 0 | - | 4.36 | 62,529 |
| Dumb it Down Doc | 0 | - | 4.13 | 62,410 |
| Click the Planet | 0 | - | 4.92 | 56,444 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 80,762 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 76,211 |
| Random Symbol to Element | 0 | - | 4.87 | 84,030 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 163,731 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 58,255 |
| Elements with One-Letter Symbols | 0 | - | 4.80 | 72,170 |
| Astronomy Quiz | 0 | - | 4.88 | 72,140 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 119,208 |
| Solar System Trivia | 0 | - | 4.95 | 39,386 |
| Body Part Cliches | 0 | - | 4.42 | 119,504 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,457 |
| Click the Chemical Element | 0 | - | 4.96 | 67,981 |
| Name a Valid Answer - Science | 0 | - | 4.71 | 33,301 |
| Science General Knowledge #1 | 0 | - | 4.63 | 140,544 |
| Science General Knowledge #2 | 0 | - | 4.45 | 98,295 |
| Science General Knowledge #3 | 0 | - | 4.54 | 89,398 |
| Science Vocabulary #2 | 0 | - | 4.50 | 55,027 |
| Word Chain - Science | 0 | - | 4.65 | 50,815 |
| Science Multiple Choice #2 | 0 | - | 4.38 | 33,611 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 140,942 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 30,990 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,016,773 |
| Environmental Issues | 0 | - | 4.53 | 25,545 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,127 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,696 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,938 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,787 |
| First Names of Scientists | 0 | - | 4.47 | 52,774 |
| Groups of Two - Science | 0 | - | 4.31 | 46,343 |
| Science Vocabulary #1 | 0 | - | 4.36 | 66,844 |
| Science Vocabulary #3 | 0 | - | 4.31 | 48,426 |
| Science Decoder | 0 | - | 4.51 | 27,515 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 27,380 |
| Animals - Taxonomy to Common Name | 0 | - | 4.75 | 26,032 |
| Science True or False | 0 | - | 4.34 | 36,739 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 31,529 |
| Answers are Elements #2 | 0 | - | 4.42 | 52,571 |
| Elements by Picture | 0 | - | 4.30 | 64,258 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 86,556 |
| Name a Valid Element | 0 | - | 4.71 | 64,803 |
| The Sun Quiz | 0 | - | 4.93 | 29,433 |
| Body Parts - Sudden Death | 0 | - | 4.69 | 8,526 |
| "Ologies" Quiz | 0 | - | 4.35 | 91,131 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,458 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,721 |
| Answers are Elements #1 | 0 | - | 4.31 | 51,053 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,828 |
| Element... or Pokémon? | 0 | - | 4.97 | 115,424 |
| Planets By Picture Quiz | 0 | - | 4.52 | 49,557 |
| Planets - Multiple Choice | 0 | - | 4.48 | 48,254 |
| Body Part Words Quiz | 0 | - | 4.44 | 139,691 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,084 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 169,455 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 199,824 |
| Human Body A-Z | 0 | - | 4.49 | 109,473 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 80,900 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 107,714 |
| Medical Acronyms | 0 | - | 4.40 | 89,200 |
| Birthstones Quiz | 0 | - | 4.41 | 78,130 |
| The Pluto Quiz | 0 | - | 4.66 | 9,001 |
| Citrus Fruits | 0 | - | 3.58 | 40,765 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.76 | 66,413 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,541 |
| Astronomy Decoder | 0 | - | 4.52 | 35,558 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,489 |
| The Mars Quiz | 0 | - | 4.54 | 17,569 |
| The Saturn Quiz | 0 | - | 4.59 | 10,870 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.26 | 18,739 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 196,023 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,718 |
| Brightest Objects in the Sky | 0 | - | 4.38 | 16,501 |
| Astronomy True or False | 0 | - | 4.36 | 34,099 |
| Songs with Body Parts in the Title | 0 | - | 4.30 | 204,133 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,127 |
| Body Parts - No Vowels | 0 | - | 4.14 | 22,209 |
| The Venus Quiz | 0 | - | 4.13 | 6,442 |
| Countries with Glaciers | 0 | - | 4.97 | 97,397 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,960 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,740 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 23,004 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,895 |
| Animals by Skeleton Image | 0 | - | 4.79 | 39,311 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,841 |
| Countries with the Most HIV | 0 | - | 4.50 | 43,032 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,055 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,778 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,433 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.02 | 48,272 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,536 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,619 |
| Top 10 Solar Power Countries | 0 | - | 4.76 | 57,282 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,001 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 61,101 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 37,493 |
| Countries with the Most Forest | 0 | - | 4.89 | 138,581 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,752 |
| Least-Forested Countries | 0 | - | 4.51 | 61,415 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 60,066 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,782 |
| Most Forested European Countries | 0 | - | 4.82 | 69,272 |
| Least Forested European Countries | 0 | - | 4.31 | 51,147 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 61,200 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 35,684 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 43,379 |
| Tropical Rainforest Countries | 0 | - | 4.66 | 69,902 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 44,979 |
| Elements Named for Countries | 0 | - | 4.48 | 19,948 |
