| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,968,266 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 177,162 |
| Noble Gases | 0 | - | 4.87 | 69,952 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 58,572 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 54,015 |
| Elements with One-Letter Symbols | 0 | - | 4.81 | 72,301 |
| Elemental Words | 0 | - | 4.96 | 48,015 |
| Metals of Antiquity | 0 | - | 4.94 | 86,460 |
| Elements - Sudden Death | 0 | - | 4.92 | 72,180 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 76,259 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 163,875 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 58,347 |
| International Scientific Units | 0 | - | 4.96 | 140,457 |
| Electromagnetic Spectrum | 0 | - | 4.94 | 57,407 |
| Random Symbol to Element | 0 | - | 4.87 | 84,174 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 31,007 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,981 |
| Click the Chemical Element | 0 | - | 4.96 | 68,205 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 141,124 |
| Medical Conditions Quiz | 0 | - | 4.81 | 117,135 |
| Name the Virus | 0 | - | 4.86 | 72,492 |
| Elements by Picture | 0 | - | 4.30 | 64,371 |
| Major Taxonomic Ranks | 0 | - | 4.66 | 72,204 |
| Famous Scientists | 0 | - | 4.59 | 40,191 |
| Answers are Elements #2 | 0 | - | 4.42 | 52,622 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 86,730 |
| Name a Valid Element | 0 | - | 4.71 | 64,910 |
| Scientific Names | 0 | - | 4.36 | 62,595 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,913 |
| Answers are Elements #1 | 0 | - | 4.31 | 51,079 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,859 |
| Element... or Pokémon? | 0 | - | 4.97 | 115,749 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 80,898 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.76 | 66,501 |
| Category Elimination - Elements | 0 | - | 4.66 | 48,657 |
| Body Part Cliches | 0 | - | 4.43 | 119,571 |
| Click the Planet | 0 | - | 4.92 | 56,688 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,469 |
| Astronomy Quiz | 0 | - | 4.89 | 73,272 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 119,606 |
| Solar System Trivia | 0 | - | 4.95 | 39,530 |
| Science Multiple Choice #2 | 0 | - | 4.38 | 33,693 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 31,628 |
| Environmental Issues | 0 | - | 4.53 | 25,580 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,745 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 33,480 |
| Science General Knowledge #1 | 0 | - | 4.55 | 140,853 |
| Science General Knowledge #2 | 0 | - | 4.45 | 98,634 |
| Science General Knowledge #3 | 0 | - | 4.54 | 89,613 |
| Science Vocabulary #2 | 0 | - | 4.50 | 55,121 |
| Word Chain - Science | 0 | - | 4.65 | 50,906 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 35,324 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,018,015 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,174 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,939 |
| First Names of Scientists | 0 | - | 4.47 | 52,850 |
| Groups of Two - Science | 0 | - | 4.31 | 46,399 |
| Science Vocabulary #1 | 0 | - | 4.33 | 66,972 |
| Science Vocabulary #3 | 0 | - | 4.31 | 48,517 |
| Science Decoder | 0 | - | 4.51 | 27,556 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 27,437 |
| Animals - Taxonomy to Common Name | 0 | - | 4.76 | 26,090 |
| Science True or False | 0 | - | 4.34 | 36,837 |
| Medical Vocabulary | 0 | - | 4.53 | 54,274 |
| Body Parts - Sudden Death | 0 | - | 4.69 | 10,038 |
| The Sun Quiz | 0 | - | 4.93 | 29,510 |
| Citrus Fruits | 0 | - | 3.58 | 40,778 |
| "Ologies" Quiz | 0 | - | 4.35 | 91,221 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,492 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,802 |
| Planets By Picture Quiz | 0 | - | 4.52 | 49,711 |
| Planets - Multiple Choice | 0 | - | 4.48 | 48,368 |
| Body Part Words Quiz | 0 | - | 4.44 | 139,825 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,113 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 169,821 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 199,930 |
| Human Body A-Z | 0 | - | 4.49 | 109,643 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 81,426 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 107,910 |
| Medical Specialties | 0 | - | 4.30 | 86,070 |
| Medical Acronyms | 0 | - | 4.40 | 89,325 |
| The Diseases They Had | 0 | - | 4.15 | 13,216 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 43,289 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.26 | 18,790 |
| Birthstones Quiz | 0 | - | 4.41 | 78,182 |
| The Pluto Quiz | 0 | - | 4.63 | 9,026 |
| Astronomy Decoder | 0 | - | 4.52 | 35,629 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,507 |
| The Mars Quiz | 0 | - | 4.54 | 17,597 |
| The Saturn Quiz | 0 | - | 4.59 | 10,886 |
| Dumb it Down Doc | 0 | - | 4.13 | 62,466 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 196,204 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,797 |
| Brightest Objects in the Sky | 0 | - | 4.38 | 16,524 |
| Astronomy True or False | 0 | - | 4.36 | 34,169 |
| Songs with Body Parts in the Title | 0 | - | 4.30 | 204,415 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,159 |
| Body Parts - No Vowels | 0 | - | 4.14 | 22,271 |
| The Venus Quiz | 0 | - | 4.13 | 6,451 |
| Countries with Glaciers | 0 | - | 4.97 | 97,698 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,984 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,837 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 23,223 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,906 |
| Animals by Skeleton Image | 0 | - | 4.79 | 39,432 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,877 |
| Countries with the Most HIV | 0 | - | 4.50 | 43,070 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,094 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,811 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,632 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.02 | 48,306 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,656 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,703 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 57,358 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,056 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 61,290 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 37,643 |
| Countries with the Most Forest | 0 | - | 4.89 | 138,844 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,793 |
| Least-Forested Countries | 0 | - | 4.51 | 61,596 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 60,179 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,899 |
| Most Forested European Countries | 0 | - | 4.82 | 69,481 |
| Least Forested European Countries | 0 | - | 4.31 | 51,251 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 61,311 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 35,861 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 43,726 |
| Tropical Rainforest Countries | 0 | - | 4.66 | 77,945 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 45,124 |
| Elements Named for Countries | 0 | - | 4.49 | 20,064 |
