| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,969,048 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 177,243 |
| Speed Symbol by Element | 0 | - | 4.90 | 92,277 |
| Noble Gases | 0 | - | 4.87 | 69,991 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 58,597 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 54,099 |
| Elements with One-Letter Symbols | 0 | - | 4.81 | 72,326 |
| Elemental Words | 0 | - | 4.96 | 48,022 |
| Metals of Antiquity | 0 | - | 4.94 | 86,478 |
| Elements - Sudden Death | 0 | - | 4.92 | 72,534 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 76,265 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 163,906 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 58,358 |
| International Scientific Units | 0 | - | 4.96 | 140,546 |
| Electromagnetic Spectrum | 0 | - | 4.94 | 57,437 |
| Random Symbol to Element | 0 | - | 4.87 | 84,188 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,987 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 31,009 |
| Click the Chemical Element | 0 | - | 4.96 | 68,232 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 141,207 |
| Medical Conditions Quiz | 0 | - | 4.81 | 117,160 |
| Name the Virus | 0 | - | 4.86 | 72,503 |
| Elements by Picture | 0 | - | 4.30 | 64,386 |
| Major Taxonomic Ranks | 0 | - | 4.66 | 72,227 |
| Famous Scientists | 0 | - | 4.59 | 40,200 |
| Answers are Elements #2 | 0 | - | 4.42 | 52,629 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 86,745 |
| Name a Valid Element | 0 | - | 4.71 | 64,928 |
| Scientific Names | 0 | - | 4.36 | 62,604 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,924 |
| Answers are Elements #1 | 0 | - | 4.31 | 51,082 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,864 |
| Element... or Pokémon? | 0 | - | 4.97 | 115,781 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 80,924 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.76 | 66,519 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,668 |
| Body Part Cliches | 0 | - | 4.43 | 119,645 |
| Click the Planet | 0 | - | 4.92 | 56,714 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,469 |
| Astronomy Quiz | 0 | - | 4.89 | 73,330 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 119,654 |
| Solar System Trivia | 0 | - | 4.95 | 39,548 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,750 |
| Science Multiple Choice #2 | 0 | - | 4.38 | 33,712 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 31,638 |
| Environmental Issues | 0 | - | 4.53 | 25,583 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 33,501 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,212 |
| Science General Knowledge #1 | 0 | - | 4.55 | 140,894 |
| Science General Knowledge #2 | 0 | - | 4.45 | 98,662 |
| Science General Knowledge #3 | 0 | - | 4.54 | 89,636 |
| Science Vocabulary #2 | 0 | - | 4.50 | 55,131 |
| Word Chain - Science | 0 | - | 4.65 | 50,918 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 35,336 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,018,311 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,948 |
| Body Parts - Sudden Death | 0 | - | 4.76 | 24,626 |
| First Names of Scientists | 0 | - | 4.47 | 52,860 |
| Groups of Two - Science | 0 | - | 4.31 | 46,406 |
| Science Vocabulary #1 | 0 | - | 4.33 | 66,988 |
| Science Vocabulary #3 | 0 | - | 4.31 | 48,526 |
| Science Decoder | 0 | - | 4.51 | 27,558 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 27,445 |
| Animals - Taxonomy to Common Name | 0 | - | 4.76 | 26,097 |
| Science True or False | 0 | - | 4.34 | 36,848 |
| Medical Vocabulary | 0 | - | 4.53 | 54,295 |
| The Sun Quiz | 0 | - | 4.93 | 29,519 |
| Birthstones Quiz | 0 | - | 4.41 | 78,189 |
| Citrus Fruits | 0 | - | 3.58 | 40,779 |
| "Ologies" Quiz | 0 | - | 4.35 | 91,235 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,497 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,818 |
| Planets By Picture Quiz | 0 | - | 4.52 | 49,732 |
| Planets - Multiple Choice | 0 | - | 4.48 | 48,379 |
| Body Part Words Quiz | 0 | - | 4.44 | 139,880 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,125 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 169,849 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 199,956 |
| Human Body A-Z | 0 | - | 4.49 | 109,682 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 81,459 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 107,975 |
| Medical Specialties | 0 | - | 4.30 | 86,085 |
| Medical Acronyms | 0 | - | 4.40 | 89,349 |
| The Diseases They Had | 0 | - | 4.15 | 13,218 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,304 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.26 | 18,794 |
| The Pluto Quiz | 0 | - | 4.63 | 9,027 |
| Astronomy Decoder | 0 | - | 4.52 | 35,638 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,508 |
| The Mars Quiz | 0 | - | 4.54 | 17,598 |
| The Saturn Quiz | 0 | - | 4.59 | 10,887 |
| Dumb it Down Doc | 0 | - | 4.13 | 62,477 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 196,226 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,811 |
| Brightest Objects in the Sky | 0 | - | 4.38 | 16,527 |
| Astronomy True or False | 0 | - | 4.36 | 34,175 |
| Songs with Body Parts in the Title | 0 | - | 4.30 | 204,454 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,165 |
| Body Parts - No Vowels | 0 | - | 4.14 | 22,293 |
| The Venus Quiz | 0 | - | 4.13 | 6,451 |
| Countries with Glaciers | 0 | - | 4.97 | 97,709 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,985 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,848 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 23,236 |
| Elements Named for Countries | 0 | - | 4.49 | 20,079 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,907 |
| Animals by Skeleton Image | 0 | - | 4.79 | 39,446 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,881 |
| Countries with the Most HIV | 0 | - | 4.50 | 43,075 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,102 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,820 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,635 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.02 | 48,308 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,665 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,707 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 57,370 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,065 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 61,310 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 37,659 |
| Countries with the Most Forest | 0 | - | 4.89 | 138,869 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,795 |
| Least-Forested Countries | 0 | - | 4.51 | 61,605 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.65 | 60,185 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,916 |
| Most Forested European Countries | 0 | - | 4.82 | 69,499 |
| Least Forested European Countries | 0 | - | 4.31 | 51,259 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 61,319 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 35,868 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 43,743 |
| Tropical Rainforest Countries | 0 | - | 4.66 | 78,024 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 45,129 |
