| International Scientific Units | 0 | - | 4.95 | 147,949 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 59,812 |
| A Quiz About Diamonds | 0 | - | 4.62 | 10,639 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,106,312 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 186,964 |
| Speed Symbol by Element | 0 | - | 4.92 | 98,529 |
| Chemical Elements with Short Names | 0 | - | 4.82 | 90,218 |
| Noble Gases | 0 | - | 4.89 | 73,783 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 61,386 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 63,813 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 76,829 |
| Name the Virus | 0 | - | 4.87 | 74,365 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,335 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 76,205 |
| Famous Scientists | 0 | - | 4.56 | 41,349 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.90 | 37,322 |
| Scientific Names | 0 | - | 4.34 | 76,745 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 51,536 |
| Elemental Words | 0 | - | 4.96 | 50,271 |
| Metals of Antiquity | 0 | - | 4.94 | 89,850 |
| Body Parts - Sudden Death | 0 | - | 4.85 | 49,993 |
| Bones - Sudden Death | 0 | - | 4.92 | 40,006 |
| Elements - Sudden Death | 0 | - | 4.91 | 100,714 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 83,586 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 179,133 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.79 | 60,486 |
| Body Part Cliches | 0 | - | 4.44 | 121,427 |
| Medical Conditions Quiz | 0 | - | 4.77 | 120,395 |
| First Twenty Elements - Sudden Death | 0 | - | 4.83 | 26,863 |
| Simple Machines Quiz | 0 | - | 4.35 | 8,778 |
| Random Symbol to Element | 0 | - | 4.88 | 88,589 |
| Astronomy Quiz | 0 | - | 4.89 | 77,329 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 127,623 |
| Solar System Trivia | 0 | - | 4.95 | 42,705 |
| Click the Planet | 0 | - | 4.93 | 62,333 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 35,072 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 33,032 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,454 |
| Environmental Issues | 0 | - | 4.53 | 26,199 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 11,120 |
| Science General Knowledge #1 | 0 | - | 4.53 | 155,897 |
| Science General Knowledge #2 | 0 | - | 4.45 | 104,111 |
| Science General Knowledge #3 | 0 | - | 4.54 | 94,328 |
| Science Vocabulary #2 | 0 | - | 4.52 | 57,321 |
| Word Chain - Science | 0 | - | 4.58 | 52,719 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 36,854 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 146,053 |
| Click the Chemical Element | 0 | - | 4.96 | 74,018 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,059,245 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 36,934 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,209 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 33,727 |
| The Sun Quiz | 0 | - | 4.93 | 31,720 |
| First Names of Scientists | 0 | - | 4.50 | 54,737 |
| Groups of Two - Science | 0 | - | 4.25 | 47,334 |
| Science Vocabulary #1 | 0 | - | 4.33 | 69,279 |
| Science Vocabulary #3 | 0 | - | 4.31 | 50,128 |
| Science Decoder | 0 | - | 4.54 | 28,136 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 27,138 |
| Science True or False | 0 | - | 4.34 | 38,500 |
| Answers are Elements #2 | 0 | - | 4.42 | 53,767 |
| Elements by Picture | 0 | - | 4.27 | 67,151 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 90,537 |
| Name a Valid Element | 0 | - | 4.63 | 67,256 |
| Medical Acronyms | 0 | - | 4.42 | 92,812 |
| Medical Vocabulary | 0 | - | 4.54 | 56,494 |
| Citrus Fruits | 0 | - | 3.62 | 41,382 |
| "Ologies" Quiz | 0 | - | 4.35 | 93,608 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,887 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 41,529 |
| Answers are Elements #1 | 0 | - | 4.30 | 51,926 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,465 |
| Element... or Pokémon? | 0 | - | 4.97 | 122,571 |
| Planets By Picture Quiz | 0 | - | 4.49 | 52,881 |
| Planets - Multiple Choice | 0 | - | 4.43 | 50,625 |
| Body Part Words Quiz | 0 | - | 4.44 | 142,611 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,920 |
| Word Scramble - Body Parts | 0 | - | 4.36 | 172,776 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 202,312 |
| Human Body A-Z | 0 | - | 4.50 | 124,677 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 84,922 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 113,292 |
| Medical Specialties | 0 | - | 4.30 | 88,376 |
| The Diseases They Had | 0 | - | 4.15 | 13,557 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 45,502 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 19,709 |
| Birthstones Quiz | 0 | - | 4.41 | 79,257 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 68,484 |
| Category Elimination - Elements | 0 | - | 4.57 | 51,005 |
| Astronomy Decoder | 0 | - | 4.52 | 36,732 |
| The Jupiter Quiz | 0 | - | 4.64 | 15,918 |
| The Mars Quiz | 0 | - | 4.54 | 18,059 |
| The Saturn Quiz | 0 | - | 4.54 | 11,167 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,583 |
| The Pluto Quiz | 0 | - | 4.63 | 9,367 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 214,967 |
| Name the Constellations Quiz | 0 | - | 4.58 | 43,178 |
| Brightest Objects in the Sky | 0 | - | 4.40 | 16,876 |
| Astronomy True or False | 0 | - | 4.37 | 35,234 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 209,942 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,887 |
| Body Parts - No Vowels | 0 | - | 4.13 | 24,072 |
| The Venus Quiz | 0 | - | 4.15 | 6,650 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.37 | 15,542 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.37 | 14,235 |
| Animals by Skeleton Image | 0 | - | 4.81 | 42,508 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,609 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,714 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,856 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,342 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 107,749 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,797 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.81 | 54,625 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,612 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,655 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,983 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 63,888 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 39,623 |
| Countries with the Most Forest | 0 | - | 4.88 | 142,874 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.30 | 34,443 |
| Least-Forested Countries | 0 | - | 4.52 | 63,321 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.61 | 61,830 |
| Countries with the Most Forest A-Z | 0 | - | 4.56 | 53,634 |
| Most Forested European Countries | 0 | - | 4.78 | 72,647 |
| Least Forested European Countries | 0 | - | 4.27 | 52,609 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 62,982 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.57 | 36,787 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 45,022 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 80,067 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 54,129 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,571 |
| Largest Countries Without Glaciers | 0 | - | 4.91 | 33,083 |
| Elements Named for Countries | 0 | - | 4.51 | 22,407 |
| Countries with Glaciers | 0 | - | 4.97 | 101,545 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,239 |
