| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,951,351 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 175,909 |
| Speed Symbol by Element | 0 | - | 4.90 | 91,532 |
| Noble Gases | 0 | - | 4.83 | 60,505 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 58,168 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 52,977 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 71,771 |
| Elemental Words | 0 | - | 4.96 | 47,732 |
| Metals of Antiquity | 0 | - | 4.93 | 85,951 |
| Elements - Sudden Death | 0 | - | 4.91 | 68,220 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 76,092 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 163,366 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 58,045 |
| International Scientific Units | 0 | - | 4.96 | 139,383 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 57,182 |
| Random Symbol to Element | 0 | - | 4.87 | 83,693 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,800 |
| Click the Chemical Element | 0 | - | 4.96 | 67,282 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 140,507 |
| Medical Conditions Quiz | 0 | - | 4.82 | 116,705 |
| Name the Virus | 0 | - | 4.86 | 72,197 |
| Elements by Picture | 0 | - | 4.29 | 63,999 |
| Major Taxonomic Ranks | 0 | - | 4.65 | 71,632 |
| Famous Scientists | 0 | - | 4.59 | 40,083 |
| Answers are Elements #2 | 0 | - | 4.41 | 52,480 |
| Periodic Table Elements A-Z | 0 | - | 4.79 | 86,166 |
| Name a Valid Element | 0 | - | 4.71 | 64,558 |
| Scientific Names | 0 | - | 4.36 | 62,390 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,587 |
| Answers are Elements #1 | 0 | - | 4.31 | 50,965 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,768 |
| Element... or Pokémon? | 0 | - | 4.97 | 114,720 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 80,473 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.78 | 66,201 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,288 |
| Body Part Cliches | 0 | - | 4.42 | 119,373 |
| Click the Planet | 0 | - | 4.92 | 55,665 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,445 |
| Astronomy Quiz | 0 | - | 4.87 | 65,046 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 118,274 |
| Solar System Trivia | 0 | - | 4.95 | 39,033 |
| Science Multiple Choice #2 | 0 | - | 4.38 | 33,436 |
| Environmental Issues | 0 | - | 4.53 | 25,478 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,585 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 32,948 |
| Science General Knowledge #1 | 0 | - | 4.63 | 140,027 |
| Science General Knowledge #2 | 0 | - | 4.45 | 97,942 |
| Science General Knowledge #3 | 0 | - | 4.54 | 89,073 |
| Science Vocabulary #2 | 0 | - | 4.50 | 54,822 |
| Word Chain - Science | 0 | - | 4.65 | 50,623 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 35,051 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,013,924 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,005 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 31,381 |
| First Names of Scientists | 0 | - | 4.47 | 52,599 |
| Groups of Two - Science | 0 | - | 4.31 | 46,250 |
| Science Vocabulary #1 | 0 | - | 4.36 | 66,598 |
| Science Vocabulary #3 | 0 | - | 4.31 | 48,255 |
| Science Decoder | 0 | - | 4.51 | 27,450 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 27,279 |
| Animals - Taxonomy to Common Name | 0 | - | 4.76 | 25,901 |
| Science True or False | 0 | - | 4.34 | 36,539 |
| Medical Vocabulary | 0 | - | 4.53 | 53,904 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,551 |
| The Sun Quiz | 0 | - | 4.93 | 29,197 |
| Citrus Fruits | 0 | - | 3.58 | 40,723 |
| "Ologies" Quiz | 0 | - | 4.34 | 90,578 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,402 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,496 |
| Planets By Picture Quiz | 0 | - | 4.55 | 49,154 |
| Planets - Multiple Choice | 0 | - | 4.48 | 47,945 |
| Body Part Words Quiz | 0 | - | 4.44 | 139,434 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,001 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 169,064 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 199,590 |
| Human Body A-Z | 0 | - | 4.49 | 109,159 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 80,623 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 107,294 |
| Medical Specialties | 0 | - | 4.30 | 85,682 |
| Medical Acronyms | 0 | - | 4.40 | 88,902 |
| The Diseases They Had | 0 | - | 4.15 | 13,175 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 42,944 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.26 | 18,653 |
| Birthstones Quiz | 0 | - | 4.41 | 78,029 |
| The Pluto Quiz | 0 | - | 4.66 | 8,941 |
| Astronomy Decoder | 0 | - | 4.51 | 35,389 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,433 |
| The Mars Quiz | 0 | - | 4.53 | 17,509 |
| The Saturn Quiz | 0 | - | 4.59 | 10,824 |
| Dumb it Down Doc | 0 | - | 4.13 | 62,280 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 195,440 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,538 |
| Brightest Objects in the Sky | 0 | - | 4.38 | 16,447 |
| Astronomy True or False | 0 | - | 4.36 | 33,943 |
| Songs with Body Parts in the Title | 0 | - | 4.30 | 203,553 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,059 |
| Body Parts - No Vowels | 0 | - | 4.14 | 22,065 |
| The Venus Quiz | 0 | - | 4.11 | 6,408 |
| Countries with Glaciers | 0 | - | 4.97 | 96,828 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,941 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,553 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 22,749 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,860 |
| Animals by Skeleton Image | 0 | - | 4.79 | 39,032 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,768 |
| Countries with the Most HIV | 0 | - | 4.50 | 42,955 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 31,982 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,728 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,326 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.02 | 48,229 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,408 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,506 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 57,101 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 23,885 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 60,783 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 37,265 |
| Countries with the Most Forest | 0 | - | 4.89 | 137,930 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,635 |
| Least-Forested Countries | 0 | - | 4.51 | 61,174 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 59,856 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,586 |
| Most Forested European Countries | 0 | - | 4.82 | 68,935 |
| Least Forested European Countries | 0 | - | 4.31 | 50,957 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 60,976 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 35,562 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,294 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 69,696 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 44,819 |
| Elements Named for Countries | 0 | - | 4.50 | 19,668 |
