| Medical Conditions Quiz | 0 | - | 4.84 | 115,299 |
| Name the Virus | 0 | - | 4.85 | 61,943 |
| International Scientific Units | 0 | - | 4.96 | 137,292 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 56,608 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 34,398 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,922,842 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 173,994 |
| Speed Symbol by Element | 0 | - | 4.89 | 90,241 |
| Noble Gases | 0 | - | 4.83 | 59,656 |
| Elements that are Gases at Room Temperature | 0 | - | 4.84 | 57,562 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 51,355 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 70,731 |
| Medical Vocabulary | 0 | - | 4.53 | 53,264 |
| Major Taxonomic Ranks | 0 | - | 4.64 | 70,566 |
| Famous Scientists | 0 | - | 4.59 | 39,922 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 42,340 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 47,979 |
| Elemental Words | 0 | - | 4.96 | 47,252 |
| Metals of Antiquity | 0 | - | 4.94 | 85,245 |
| Medical Specialties | 0 | - | 4.29 | 84,647 |
| The Diseases They Had | 0 | - | 4.15 | 13,084 |
| Scientific Names | 0 | - | 4.36 | 62,045 |
| Dumb it Down Doc | 0 | - | 4.13 | 61,912 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 79,726 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 75,833 |
| Random Symbol to Element | 0 | - | 4.86 | 82,973 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 161,801 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.55 | 53,006 |
| Astronomy Quiz | 0 | - | 4.87 | 64,228 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 116,219 |
| Solar System Trivia | 0 | - | 4.95 | 38,348 |
| Body Part Cliches | 0 | - | 4.42 | 119,092 |
| Click the Planet | 0 | - | 4.91 | 53,597 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,403 |
| Click the Chemical Element | 0 | - | 4.96 | 65,685 |
| Body Parts in History and Culture | 0 | - | 4.48 | 32,749 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,314 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.55 | 9,444 |
| Science General Knowledge #1 | 0 | - | 4.65 | 138,117 |
| Science General Knowledge #2 | 0 | - | 4.45 | 96,659 |
| Science General Knowledge #3 | 0 | - | 4.57 | 87,833 |
| Science Vocabulary #2 | 0 | - | 4.49 | 54,284 |
| Word Chain - Science | 0 | - | 4.65 | 50,056 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 33,064 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 139,484 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 30,855 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,006,631 |
| Environmental Issues | 0 | - | 4.52 | 25,325 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 31,861 |
| First Names of Scientists | 0 | - | 4.47 | 52,223 |
| Groups of Two - Science | 0 | - | 4.31 | 46,010 |
| Science Vocabulary #1 | 0 | - | 4.36 | 65,965 |
| Science Vocabulary #3 | 0 | - | 4.31 | 47,797 |
| Science Decoder | 0 | - | 4.51 | 27,299 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.46 | 27,041 |
| Animals - Taxonomy to Common Name | 0 | - | 4.72 | 25,632 |
| Science True or False | 0 | - | 4.34 | 36,066 |
| Science Multiple Choice #3 | 0 | - | 4.36 | 30,988 |
| Answers are Elements #2 | 0 | - | 4.41 | 52,212 |
| Elements by Picture | 0 | - | 4.29 | 63,391 |
| Periodic Table Elements A-Z | 0 | - | 4.79 | 85,154 |
| Name a Valid Element | 0 | - | 4.71 | 63,872 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,157 |
| The Sun Quiz | 0 | - | 4.93 | 28,775 |
| Birthstones Quiz | 0 | - | 4.41 | 77,771 |
| "Ologies" Quiz | 0 | - | 4.34 | 90,121 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,304 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,001 |
| Answers are Elements #1 | 0 | - | 4.32 | 50,787 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,633 |
| Element... or Pokémon? | 0 | - | 4.97 | 112,606 |
| Planets By Picture Quiz | 0 | - | 4.55 | 48,372 |
| Planets - Multiple Choice | 0 | - | 4.47 | 47,296 |
| Body Part Words Quiz | 0 | - | 4.44 | 138,677 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 57,830 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 167,956 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 198,830 |
| Human Body A-Z | 0 | - | 4.48 | 108,060 |
| One-Syllable Human Body Parts | 0 | - | 4.28 | 79,894 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 106,209 |
| Medical Acronyms | 0 | - | 4.40 | 88,142 |
| Citrus Fruits | 0 | - | 3.58 | 40,639 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.79 | 65,728 |
| Category Elimination - Elements | 0 | - | 4.66 | 47,595 |
| Astronomy Decoder | 0 | - | 4.51 | 35,136 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,335 |
| The Mars Quiz | 0 | - | 4.52 | 17,372 |
| The Saturn Quiz | 0 | - | 4.58 | 10,757 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.25 | 18,384 |
| The Pluto Quiz | 0 | - | 4.65 | 8,849 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 194,526 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,213 |
| Brightest Objects in the Sky | 0 | - | 4.37 | 16,350 |
| Astronomy True or False | 0 | - | 4.35 | 33,662 |
| Songs with Body Parts in the Title | 0 | - | 4.29 | 201,248 |
| Most Common Body Part Words | 0 | - | 3.92 | 29,882 |
| Body Parts - No Vowels | 0 | - | 4.13 | 21,831 |
| The Venus Quiz | 0 | - | 4.08 | 6,378 |
| Elements Named for Countries | 0 | - | 4.49 | 18,963 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,736 |
| Animals by Skeleton Image | 0 | - | 4.79 | 38,254 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,542 |
| Countries with the Most HIV | 0 | - | 4.50 | 42,749 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 31,786 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,596 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,095 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.01 | 48,136 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,072 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,231 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 56,661 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 23,594 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 60,065 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 36,717 |
| Countries with the Most Forest | 0 | - | 4.89 | 136,884 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,471 |
| Least-Forested Countries | 0 | - | 4.51 | 60,677 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 59,285 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 50,938 |
| Most Forested European Countries | 0 | - | 4.82 | 68,049 |
| Least Forested European Countries | 0 | - | 4.31 | 50,467 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 60,441 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.58 | 35,324 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 34,993 |
| Tropical Rainforest Countries | 0 | - | 4.65 | 69,180 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 44,464 |
| Countries with Glaciers | 0 | - | 4.98 | 95,509 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,867 |
| U.S. States with Glaciers | 0 | - | 4.60 | 21,031 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 22,105 |
