| International Scientific Units | 0 | - | 4.96 | 140,275 |
| Electromagnetic Spectrum | 0 | - | 4.94 | 57,377 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,964,982 |
| Major Taxonomic Ranks | 0 | - | 4.65 | 72,115 |
| Famous Scientists | 0 | - | 4.59 | 40,180 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 177,000 |
| Speed Symbol by Element | 0 | - | 4.90 | 92,138 |
| Noble Gases | 0 | - | 4.87 | 69,879 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 58,510 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 53,850 |
| Medical Conditions Quiz | 0 | - | 4.81 | 117,065 |
| Name the Virus | 0 | - | 4.86 | 72,440 |
| Scientific Names | 0 | - | 4.36 | 62,552 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,467 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,853 |
| Elemental Words | 0 | - | 4.96 | 47,975 |
| Metals of Antiquity | 0 | - | 4.94 | 86,378 |
| Elements - Sudden Death | 0 | - | 4.92 | 71,464 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 80,823 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 76,238 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 163,794 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 58,296 |
| Elements with One-Letter Symbols | 0 | - | 4.80 | 72,226 |
| Body Part Cliches | 0 | - | 4.42 | 119,539 |
| Click the Planet | 0 | - | 4.92 | 56,566 |
| Science Multiple Choice #2 | 0 | - | 4.38 | 33,647 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 31,003 |
| Random Symbol to Element | 0 | - | 4.87 | 84,075 |
| Astronomy Quiz | 0 | - | 4.88 | 73,005 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 119,377 |
| Solar System Trivia | 0 | - | 4.95 | 39,459 |
| Environmental Issues | 0 | - | 4.53 | 25,566 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,722 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,958 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 33,388 |
| Science General Knowledge #1 | 0 | - | 4.55 | 140,710 |
| Science General Knowledge #2 | 0 | - | 4.45 | 98,541 |
| Science General Knowledge #3 | 0 | - | 4.54 | 89,525 |
| Science Vocabulary #2 | 0 | - | 4.50 | 55,068 |
| Word Chain - Science | 0 | - | 4.65 | 50,861 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 35,277 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 141,035 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,146 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 31,575 |
| Click the Chemical Element | 0 | - | 4.96 | 68,075 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,017,297 |
| Groups of Two - Science | 0 | - | 4.31 | 46,365 |
| Science Vocabulary #1 | 0 | - | 4.36 | 66,896 |
| Science Vocabulary #3 | 0 | - | 4.31 | 48,462 |
| Science Decoder | 0 | - | 4.51 | 27,542 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 27,408 |
| Animals - Taxonomy to Common Name | 0 | - | 4.76 | 26,059 |
| Science True or False | 0 | - | 4.34 | 36,768 |
| Elements by Picture | 0 | - | 4.30 | 64,311 |
| Body Parts - Sudden Death | 0 | - | 4.73 | 9,403 |
| First Names of Scientists | 0 | - | 4.47 | 52,805 |
| Answers are Elements #2 | 0 | - | 4.42 | 52,590 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 86,649 |
| Name a Valid Element | 0 | - | 4.71 | 64,851 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,867 |
| Medical Vocabulary | 0 | - | 4.53 | 54,220 |
| Citrus Fruits | 0 | - | 3.58 | 40,772 |
| The Sun Quiz | 0 | - | 4.93 | 29,474 |
| The Diseases They Had | 0 | - | 4.15 | 13,212 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.26 | 18,769 |
| "Ologies" Quiz | 0 | - | 4.35 | 91,164 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,470 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,762 |
| Answers are Elements #1 | 0 | - | 4.31 | 51,064 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,838 |
| Planets By Picture Quiz | 0 | - | 4.52 | 49,624 |
| Planets - Multiple Choice | 0 | - | 4.48 | 48,309 |
| Body Part Words Quiz | 0 | - | 4.44 | 139,749 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,098 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 169,545 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 199,878 |
| Human Body A-Z | 0 | - | 4.49 | 109,549 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 81,348 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 107,806 |
| Medical Specialties | 0 | - | 4.30 | 86,002 |
| Medical Acronyms | 0 | - | 4.40 | 89,256 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,222 |
| Birthstones Quiz | 0 | - | 4.41 | 78,151 |
| Element... or Pokémon? | 0 | - | 4.97 | 115,549 |
| The Pluto Quiz | 0 | - | 4.66 | 9,009 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.76 | 66,456 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,591 |
| Brightest Objects in the Sky | 0 | - | 4.38 | 16,511 |
| Astronomy Decoder | 0 | - | 4.52 | 35,594 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,499 |
| The Mars Quiz | 0 | - | 4.54 | 17,584 |
| The Saturn Quiz | 0 | - | 4.59 | 10,879 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,143 |
| Body Parts - No Vowels | 0 | - | 4.14 | 22,237 |
| Dumb it Down Doc | 0 | - | 4.13 | 62,444 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 196,117 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,744 |
| Astronomy True or False | 0 | - | 4.36 | 34,137 |
| Songs with Body Parts in the Title | 0 | - | 4.30 | 204,267 |
| The Venus Quiz | 0 | - | 4.13 | 6,449 |
| Countries with Glaciers | 0 | - | 4.97 | 97,524 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,970 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,781 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 23,107 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,903 |
| Animals by Skeleton Image | 0 | - | 4.79 | 39,352 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,860 |
| Countries with the Most HIV | 0 | - | 4.50 | 43,053 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,071 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,800 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,518 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.02 | 48,288 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,584 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,656 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 57,317 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,025 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 61,183 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 37,556 |
| Countries with the Most Forest | 0 | - | 4.89 | 138,677 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,776 |
| Least-Forested Countries | 0 | - | 4.51 | 61,485 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 60,111 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,826 |
| Most Forested European Countries | 0 | - | 4.82 | 69,356 |
| Least Forested European Countries | 0 | - | 4.31 | 51,186 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 61,239 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 35,759 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 43,610 |
| Tropical Rainforest Countries | 0 | - | 4.63 | 74,193 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 45,050 |
| Elements Named for Countries | 0 | - | 4.49 | 20,003 |
