| Medical Conditions Quiz | 0 | - | 4.84 | 114,929 |
| Name the Virus | 0 | - | 4.85 | 61,702 |
| International Scientific Units | 0 | - | 4.96 | 136,460 |
| Electromagnetic Spectrum | 0 | - | 4.92 | 54,134 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.59 | 34,211 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,911,039 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 173,069 |
| Speed Symbol by Element | 0 | - | 4.89 | 89,699 |
| Noble Gases | 0 | - | 4.82 | 59,284 |
| Elements that are Gases at Room Temperature | 0 | - | 4.84 | 57,279 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 50,672 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 70,251 |
| Medical Vocabulary | 0 | - | 4.55 | 53,015 |
| Major Taxonomic Ranks | 0 | - | 4.64 | 70,123 |
| Famous Scientists | 0 | - | 4.59 | 39,824 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 42,075 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 47,715 |
| Elemental Words | 0 | - | 4.96 | 47,030 |
| Metals of Antiquity | 0 | - | 4.94 | 84,886 |
| Medical Specialties | 0 | - | 4.29 | 84,370 |
| The Diseases They Had | 0 | - | 4.13 | 13,060 |
| Scientific Names | 0 | - | 4.36 | 61,855 |
| Dumb it Down Doc | 0 | - | 4.12 | 61,795 |
| Science Multiple Choice #1 | 0 | - | 4.55 | 79,366 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 75,714 |
| Random Symbol to Element | 0 | - | 4.86 | 82,254 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 160,866 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.56 | 48,872 |
| Astronomy Quiz | 0 | - | 4.87 | 63,840 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 115,193 |
| Solar System Trivia | 0 | - | 4.95 | 38,023 |
| Body Part Cliches | 0 | - | 4.42 | 118,584 |
| Click the Planet | 0 | - | 4.91 | 52,779 |
| Simple Machines Quiz | 0 | - | 4.33 | 8,379 |
| Click the Chemical Element | 0 | - | 4.96 | 64,876 |
| Body Parts in History and Culture | 0 | - | 4.48 | 32,602 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,192 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.55 | 9,241 |
| Science General Knowledge #1 | 0 | - | 4.65 | 137,426 |
| Science General Knowledge #2 | 0 | - | 4.45 | 96,250 |
| Science General Knowledge #3 | 0 | - | 4.66 | 87,440 |
| Science Vocabulary #2 | 0 | - | 4.51 | 54,018 |
| Word Chain - Science | 0 | - | 4.65 | 49,827 |
| Science Multiple Choice #2 | 0 | - | 4.35 | 32,877 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 138,934 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 30,822 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,003,031 |
| Environmental Issues | 0 | - | 4.52 | 25,253 |
| First Names of Scientists | 0 | - | 4.47 | 52,057 |
| Groups of Two - Science | 0 | - | 4.33 | 45,894 |
| Science Vocabulary #1 | 0 | - | 4.36 | 65,670 |
| Science Vocabulary #3 | 0 | - | 4.32 | 47,594 |
| Science Decoder | 0 | - | 4.51 | 27,224 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.45 | 26,929 |
| Animals - Taxonomy to Common Name | 0 | - | 4.72 | 25,485 |
| Science True or False | 0 | - | 4.33 | 35,836 |
| Science Multiple Choice #3 | 0 | - | 4.38 | 30,793 |
| Answers are Elements #2 | 0 | - | 4.41 | 52,114 |
| Metals by Total Mined Value | 0 | - | 4.70 | 39,761 |
| Elements by Picture | 0 | - | 4.29 | 63,046 |
| Periodic Table Elements A-Z | 0 | - | 4.79 | 84,664 |
| Name a Valid Element | 0 | - | 4.72 | 63,555 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 30,988 |
| The Sun Quiz | 0 | - | 4.93 | 28,558 |
| Name a Valid Answer - Science | 0 | - | 4.71 | 31,410 |
| Birthstones Quiz | 0 | - | 4.41 | 77,516 |
| "Ologies" Quiz | 0 | - | 4.34 | 89,827 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,249 |
| Fish... or Not a Fish? | 0 | - | 4.42 | 38,732 |
| Answers are Elements #1 | 0 | - | 4.32 | 50,704 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,578 |
| Element... or Pokémon? | 0 | - | 4.97 | 111,619 |
| Planets By Picture Quiz | 0 | - | 4.54 | 47,996 |
| Planets - Multiple Choice | 0 | - | 4.47 | 46,884 |
| Body Part Words Quiz | 0 | - | 4.44 | 138,172 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 57,735 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 167,541 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 198,598 |
| Human Body A-Z | 0 | - | 4.48 | 107,674 |
| One-Syllable Human Body Parts | 0 | - | 4.28 | 79,624 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 104,988 |
| Medical Acronyms | 0 | - | 4.40 | 87,843 |
| Citrus Fruits | 0 | - | 3.58 | 40,606 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.79 | 65,470 |
| Category Elimination - Elements | 0 | - | 4.66 | 47,272 |
| Astronomy Decoder | 0 | - | 4.51 | 35,005 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,293 |
| The Mars Quiz | 0 | - | 4.52 | 17,320 |
| The Saturn Quiz | 0 | - | 4.58 | 10,725 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 18,260 |
| The Pluto Quiz | 0 | - | 4.65 | 8,798 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 193,919 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,060 |
| Brightest Objects in the Sky | 0 | - | 4.37 | 16,300 |
| Astronomy True or False | 0 | - | 4.35 | 33,526 |
| Songs with Body Parts in the Title | 0 | - | 4.29 | 200,352 |
| Most Common Body Part Words | 0 | - | 3.92 | 29,796 |
| Body Parts - No Vowels | 0 | - | 4.13 | 21,697 |
| The Venus Quiz | 0 | - | 4.08 | 6,362 |
| Elements Named for Countries | 0 | - | 4.49 | 18,612 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,702 |
| Animals by Skeleton Image | 0 | - | 4.79 | 37,878 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,449 |
| Countries with the Most HIV | 0 | - | 4.50 | 42,668 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 31,687 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,532 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 94,787 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.01 | 48,088 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 47,880 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,111 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 56,479 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 23,438 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 59,698 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 36,434 |
| Countries with the Most Forest | 0 | - | 4.88 | 136,058 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,387 |
| Least-Forested Countries | 0 | - | 4.51 | 60,416 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 59,017 |
| Countries with the Most Forest A-Z | 0 | - | 4.64 | 50,700 |
| Most Forested European Countries | 0 | - | 4.82 | 67,688 |
| Least Forested European Countries | 0 | - | 4.30 | 50,243 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 60,185 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.57 | 35,207 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.48 | 34,851 |
| Tropical Rainforest Countries | 0 | - | 4.65 | 68,916 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.59 | 44,302 |
| Countries with Glaciers | 0 | - | 4.98 | 94,377 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,832 |
| U.S. States with Glaciers | 0 | - | 4.59 | 20,769 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 21,800 |
