| Name the Virus | 0 | - | 4.86 | 73,785 |
| International Scientific Units | 0 | - | 4.96 | 145,824 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 59,077 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.60 | 36,452 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,066,850 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 184,052 |
| Speed Symbol by Element | 0 | - | 4.92 | 96,494 |
| Chemical Elements with Short Names | 0 | - | 4.82 | 89,114 |
| Noble Gases | 0 | - | 4.88 | 72,422 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 60,450 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 60,885 |
| Elements with One-Letter Symbols | 0 | - | 4.81 | 75,562 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 75,142 |
| Famous Scientists | 0 | - | 4.57 | 41,029 |
| Medical Vocabulary | 0 | - | 4.54 | 55,900 |
| Scientific Names | 0 | - | 4.34 | 76,269 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 50,922 |
| Elemental Words | 0 | - | 4.96 | 49,569 |
| Metals of Antiquity | 0 | - | 4.94 | 88,923 |
| Medical Specialties | 0 | - | 4.30 | 87,878 |
| The Diseases They Had | 0 | - | 4.15 | 13,469 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.65 | 44,919 |
| Body Parts - Sudden Death | 0 | - | 4.83 | 45,861 |
| Bones - Sudden Death | 0 | - | 4.92 | 36,842 |
| Elements - Sudden Death | 0 | - | 4.93 | 92,447 |
| Science Multiple Choice #1 | 0 | - | 4.54 | 82,776 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.71 | 175,895 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 59,896 |
| Body Part Cliches | 0 | - | 4.44 | 121,127 |
| Simple Machines Quiz | 0 | - | 4.34 | 8,680 |
| Random Symbol to Element | 0 | - | 4.88 | 87,284 |
| Astronomy Quiz | 0 | - | 4.89 | 76,060 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 125,217 |
| Solar System Trivia | 0 | - | 4.95 | 41,727 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,250 |
| Click the Planet | 0 | - | 4.93 | 60,719 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 34,645 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 32,623 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,309 |
| Environmental Issues | 0 | - | 4.52 | 26,017 |
| A Quiz About Diamonds | 0 | - | 4.62 | 10,421 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 10,778 |
| Science General Knowledge #1 | 0 | - | 4.56 | 145,080 |
| Science General Knowledge #2 | 0 | - | 4.44 | 101,691 |
| Science General Knowledge #3 | 0 | - | 4.55 | 92,406 |
| Science Vocabulary #2 | 0 | - | 4.52 | 56,700 |
| Word Chain - Science | 0 | - | 4.58 | 52,205 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 144,897 |
| Click the Chemical Element | 0 | - | 4.96 | 72,237 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,039,781 |
| Name a Valid Answer - Science | 0 | - | 4.80 | 35,984 |
| Body Parts in History and Culture | 0 | - | 4.42 | 33,994 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 33,242 |
| First Names of Scientists | 0 | - | 4.50 | 54,166 |
| Groups of Two - Science | 0 | - | 4.27 | 47,086 |
| Science Vocabulary #1 | 0 | - | 4.36 | 68,591 |
| Science Vocabulary #3 | 0 | - | 4.30 | 49,656 |
| Science Decoder | 0 | - | 4.54 | 27,959 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,103 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 26,864 |
| Science True or False | 0 | - | 4.34 | 37,996 |
| Answers are Elements #2 | 0 | - | 4.42 | 53,404 |
| Elements by Picture | 0 | - | 4.28 | 66,390 |
| Periodic Table Elements A-Z | 0 | - | 4.75 | 89,445 |
| Name a Valid Element | 0 | - | 4.64 | 66,538 |
| Medical Acronyms | 0 | - | 4.42 | 91,703 |
| The Sun Quiz | 0 | - | 4.93 | 31,040 |
| Citrus Fruits | 0 | - | 3.60 | 41,206 |
| "Ologies" Quiz | 0 | - | 4.34 | 92,770 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,768 |
| Fish... or Not a Fish? | 0 | - | 4.43 | 41,059 |
| Answers are Elements #1 | 0 | - | 4.30 | 51,640 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,290 |
| Element... or Pokémon? | 0 | - | 4.97 | 120,441 |
| Planets By Picture Quiz | 0 | - | 4.49 | 51,905 |
| Planets - Multiple Choice | 0 | - | 4.43 | 49,986 |
| Body Part Words Quiz | 0 | - | 4.44 | 142,032 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 58,711 |
| Word Scramble - Body Parts | 0 | - | 4.36 | 171,959 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 201,370 |
| Human Body A-Z | 0 | - | 4.50 | 123,905 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 83,805 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 111,579 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 19,422 |
| Birthstones Quiz | 0 | - | 4.41 | 78,991 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 67,920 |
| Category Elimination - Elements | 0 | - | 4.57 | 50,288 |
| Astronomy Decoder | 0 | - | 4.52 | 36,373 |
| The Jupiter Quiz | 0 | - | 4.64 | 15,778 |
| The Mars Quiz | 0 | - | 4.54 | 17,911 |
| The Saturn Quiz | 0 | - | 4.54 | 11,083 |
| The Pluto Quiz | 0 | - | 4.63 | 9,284 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 213,877 |
| Name the Constellations Quiz | 0 | - | 4.58 | 42,823 |
| Brightest Objects in the Sky | 0 | - | 4.39 | 16,779 |
| Astronomy True or False | 0 | - | 4.37 | 34,933 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 208,409 |
| Most Common Body Part Words | 0 | - | 3.92 | 30,662 |
| Body Parts - No Vowels | 0 | - | 4.13 | 23,638 |
| The Venus Quiz | 0 | - | 4.15 | 6,581 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.40 | 14,967 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,161 |
| Animals by Skeleton Image | 0 | - | 4.80 | 41,489 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,424 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,539 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 32,678 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,218 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 100,743 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,657 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.83 | 52,859 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,373 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,330 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 24,788 |
| Worst Plastic Polluting Countries | 0 | - | 4.55 | 63,178 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 39,057 |
| Countries with the Most Forest | 0 | - | 4.88 | 141,768 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.29 | 34,277 |
| Least-Forested Countries | 0 | - | 4.52 | 62,796 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.62 | 61,430 |
| Countries with the Most Forest A-Z | 0 | - | 4.55 | 53,195 |
| Most Forested European Countries | 0 | - | 4.78 | 71,996 |
| Least Forested European Countries | 0 | - | 4.29 | 52,289 |
| Least Forested Countries in Asia | 0 | - | 4.77 | 62,571 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 36,523 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 44,707 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 79,515 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.56 | 46,000 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,093 |
| Largest Countries Without Glaciers | 0 | - | 4.91 | 32,402 |
| Elements Named for Countries | 0 | - | 4.51 | 21,771 |
| Countries with Glaciers | 0 | - | 4.97 | 100,425 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,164 |
