| International Scientific Units | 0 | - | 4.96 | 137,653 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 56,730 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,928,244 |
| Major Taxonomic Ranks | 0 | - | 4.64 | 70,784 |
| Famous Scientists | 0 | - | 4.59 | 39,953 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 174,487 |
| Speed Symbol by Element | 0 | - | 4.89 | 90,516 |
| Noble Gases | 0 | - | 4.82 | 59,832 |
| Elements that are Gases at Room Temperature | 0 | - | 4.84 | 57,705 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 51,738 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 70,983 |
| Medical Conditions Quiz | 0 | - | 4.84 | 115,444 |
| Name the Virus | 0 | - | 4.85 | 62,037 |
| Scientific Names | 0 | - | 4.36 | 62,127 |
| Elements - Sudden Death | 0 | - | 4.90 | 62,732 |
| Simple Machines Quiz | 0 | - | 4.32 | 8,416 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 48,090 |
| Elemental Words | 0 | - | 4.96 | 47,370 |
| Metals of Antiquity | 0 | - | 4.94 | 85,401 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 79,860 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 75,896 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 162,180 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.76 | 57,325 |
| Body Part Cliches | 0 | - | 4.42 | 119,143 |
| A Quiz About Diamonds | 0 | - | 4.62 | 9,365 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.51 | 9,559 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 33,135 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 30,877 |
| Random Symbol to Element | 0 | - | 4.87 | 83,138 |
| Astronomy Quiz | 0 | - | 4.87 | 64,380 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 116,631 |
| Solar System Trivia | 0 | - | 4.95 | 38,479 |
| Environmental Issues | 0 | - | 4.52 | 25,363 |
| Click the Planet | 0 | - | 4.91 | 53,840 |
| Body Parts in History and Culture | 0 | - | 4.48 | 32,798 |
| Science General Knowledge #1 | 0 | - | 4.63 | 138,721 |
| Science General Knowledge #2 | 0 | - | 4.45 | 97,144 |
| Science General Knowledge #3 | 0 | - | 4.57 | 88,133 |
| Science Vocabulary #2 | 0 | - | 4.49 | 54,395 |
| Word Chain - Science | 0 | - | 4.65 | 50,177 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 34,477 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 139,669 |
| Name a Valid Answer - Science | 0 | - | 4.72 | 32,082 |
| Science Multiple Choice #3 | 0 | - | 4.36 | 31,078 |
| Click the Chemical Element | 0 | - | 4.96 | 65,961 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,008,142 |
| Groups of Two - Science | 0 | - | 4.31 | 46,066 |
| Science Vocabulary #1 | 0 | - | 4.36 | 66,078 |
| Science Vocabulary #3 | 0 | - | 4.31 | 47,880 |
| Science Decoder | 0 | - | 4.51 | 27,325 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.46 | 27,093 |
| Animals - Taxonomy to Common Name | 0 | - | 4.72 | 25,685 |
| Science True or False | 0 | - | 4.34 | 36,189 |
| Elements by Picture | 0 | - | 4.29 | 63,511 |
| First Names of Scientists | 0 | - | 4.47 | 52,287 |
| Answers are Elements #2 | 0 | - | 4.41 | 52,275 |
| Periodic Table Elements A-Z | 0 | - | 4.79 | 85,372 |
| Name a Valid Element | 0 | - | 4.71 | 64,021 |
| Medical Vocabulary | 0 | - | 4.53 | 53,359 |
| Citrus Fruits | 0 | - | 3.58 | 40,655 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,249 |
| The Sun Quiz | 0 | - | 4.93 | 28,868 |
| The Diseases They Had | 0 | - | 4.15 | 13,095 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.25 | 18,444 |
| Birthstones Quiz | 0 | - | 4.41 | 77,825 |
| "Ologies" Quiz | 0 | - | 4.34 | 90,196 |
| Albert Einstein Quiz | 0 | - | 4.54 | 17,324 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 39,105 |
| Answers are Elements #1 | 0 | - | 4.32 | 50,837 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 46,659 |
| Planets By Picture Quiz | 0 | - | 4.55 | 48,540 |
| Planets - Multiple Choice | 0 | - | 4.48 | 47,433 |
| Body Part Words Quiz | 0 | - | 4.44 | 138,826 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 57,868 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 168,132 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 198,918 |
| Human Body A-Z | 0 | - | 4.49 | 108,214 |
| One-Syllable Human Body Parts | 0 | - | 4.28 | 80,124 |
| Organs of the Human Body (with map) | 0 | - | 4.12 | 106,429 |
| Medical Specialties | 0 | - | 4.29 | 84,740 |
| Medical Acronyms | 0 | - | 4.40 | 88,265 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 42,450 |
| Element... or Pokémon? | 0 | - | 4.97 | 113,069 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.79 | 65,827 |
| Category Elimination - Elements | 0 | - | 4.66 | 47,712 |
| Brightest Objects in the Sky | 0 | - | 4.37 | 16,372 |
| Astronomy Decoder | 0 | - | 4.51 | 35,184 |
| The Jupiter Quiz | 0 | - | 4.61 | 15,354 |
| The Mars Quiz | 0 | - | 4.53 | 17,398 |
| The Saturn Quiz | 0 | - | 4.59 | 10,770 |
| Most Common Body Part Words | 0 | - | 3.92 | 29,907 |
| Body Parts - No Vowels | 0 | - | 4.14 | 21,881 |
| Dumb it Down Doc | 0 | - | 4.13 | 61,959 |
| The Pluto Quiz | 0 | - | 4.65 | 8,863 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 194,684 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,263 |
| Astronomy True or False | 0 | - | 4.35 | 33,700 |
| Songs with Body Parts in the Title | 0 | - | 4.29 | 201,620 |
| The Venus Quiz | 0 | - | 4.11 | 6,388 |
| Elements Named for Countries | 0 | - | 4.50 | 19,118 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,757 |
| Animals by Skeleton Image | 0 | - | 4.79 | 38,443 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 12,581 |
| Countries with the Most HIV | 0 | - | 4.50 | 42,794 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 31,822 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.13 | 21,615 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 95,153 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.01 | 48,153 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.92 | 48,149 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 32,281 |
| Top 10 Solar Power Countries | 0 | - | 4.77 | 56,737 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 23,662 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 60,189 |
| Countries that Desalinate the Most Water | 0 | - | 4.79 | 36,812 |
| Countries with the Most Forest | 0 | - | 4.89 | 137,085 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 33,492 |
| Least-Forested Countries | 0 | - | 4.51 | 60,766 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 59,380 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 51,038 |
| Most Forested European Countries | 0 | - | 4.82 | 68,240 |
| Least Forested European Countries | 0 | - | 4.31 | 50,555 |
| Least Forested Countries in Asia | 0 | - | 4.79 | 60,556 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.58 | 35,364 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,037 |
| Tropical Rainforest Countries | 0 | - | 4.65 | 69,272 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.58 | 44,526 |
| Countries with Glaciers | 0 | - | 4.98 | 95,830 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 25,879 |
| U.S. States with Glaciers | 0 | - | 4.59 | 21,134 |
| Largest Countries Without Glaciers | 0 | - | 4.90 | 22,232 |
