| Body Parts - Sudden Death #1 | 0 | - | 4.86 | 65,378 |
| Bones - Sudden Death | 0 | - | 4.95 | 52,298 |
| Body Part Cliches | 0 | - | 4.44 | 123,513 |
| Bones of the Human Body | 0 | - | 4.52 | 42,902 |
| International Scientific Units | 0 | - | 4.95 | 157,238 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,941 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,352 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,246,979 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,044 |
| Body Parts - Sudden Death #2 | 0 | - | 4.84 | 38,299 |
| Elements by Symbol | 0 | - | 4.92 | 197,593 |
| Speed Symbol by Element | 0 | - | 4.90 | 104,900 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,360 |
| Noble Gases | 0 | - | 4.89 | 78,373 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,701 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,577 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,866 |
| Name the Virus | 0 | - | 4.87 | 76,847 |
| Major Taxonomic Ranks | 0 | - | 4.56 | 80,735 |
| Famous Scientists | 0 | - | 4.57 | 42,704 |
| Elements Whose First Letter Doesn't Match the Symbol | 0 | - | 4.87 | 18,057 |
| Scientific Names | 0 | - | 4.32 | 78,533 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,047 |
| Elemental Words | 0 | - | 4.97 | 52,356 |
| Metals of Antiquity | 0 | - | 4.95 | 93,552 |
| Body Part Words | 0 | - | 4.43 | 146,103 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,865 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,711 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,706 |
| Human Body A-Z | 0 | - | 4.51 | 129,314 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,283 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,466 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,713 |
| First Twenty Elements - Sudden Death | 0 | - | 4.83 | 36,866 |
| Elements - Sudden Death | 0 | - | 4.91 | 132,555 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.89 | 56,068 |
| Famous Effects | 0 | - | 4.62 | 12,597 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,665 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,029 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,985 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,577 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,281 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,127 |
| Random Symbol to Element | 0 | - | 4.88 | 93,206 |
| Astronomy Quiz | 0 | - | 4.90 | 82,749 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,544 |
| Solar System Trivia | 0 | - | 4.93 | 46,758 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,414 |
| Click the Planet | 0 | - | 4.96 | 91,625 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,577 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.53 | 12,213 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,619 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,665 |
| Environmental Issues | 0 | - | 4.54 | 26,851 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 41,043 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,257 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,960 |
| Science General Knowledge #3 | 0 | - | 4.56 | 108,960 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,716 |
| Word Chain - Science | 0 | - | 4.59 | 54,947 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,751 |
| Click the Chemical Element | 0 | - | 4.96 | 80,680 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,098,638 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,997 |
| The Sun Quiz | 0 | - | 4.93 | 34,759 |
| First Names of Scientists | 0 | - | 4.51 | 56,956 |
| Groups of Two - Science | 0 | - | 4.26 | 48,353 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,935 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,044 |
| Science Decoder | 0 | - | 4.52 | 28,785 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,368 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,320 |
| Science True or False | 0 | - | 4.35 | 40,348 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,075 |
| Elements by Picture | 0 | - | 4.27 | 70,045 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,032 |
| Name a Valid Element | 0 | - | 4.67 | 70,142 |
| Medical Acronyms | 0 | - | 4.43 | 96,927 |
| Medical Vocabulary | 0 | - | 4.54 | 59,182 |
| Birthstones by Month | 0 | - | 4.42 | 80,746 |
| Citrus Fruits | 0 | - | 3.63 | 42,090 |
| "Ologies" Quiz | 0 | - | 4.34 | 97,248 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,403 |
| Name the Metal Alloy | 0 | - | 4.73 | 13,824 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,861 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,222 |
| Element... or Pokémon? | 0 | - | 4.98 | 132,015 |
| Brightest Natural Objects in the Sky | 0 | - | 4.46 | 28,408 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,969 |
| Medical Specialties | 0 | - | 4.32 | 91,843 |
| The Diseases They Had | 0 | - | 4.15 | 14,023 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,905 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,849 |
| The Pluto Quiz | 0 | - | 4.61 | 9,873 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,551 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,768 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,780 |
| Astronomy Decoder | 0 | - | 4.49 | 38,089 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,468 |
| The Mars Quiz | 0 | - | 4.55 | 18,680 |
| The Saturn Quiz | 0 | - | 4.54 | 11,564 |
| Planets - Multiple Choice | 0 | - | 4.39 | 53,638 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,014 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 226,160 |
| Name the Constellations | 0 | - | 4.58 | 45,025 |
| Astronomy True or False | 0 | - | 4.39 | 36,511 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,889 |
| The Venus Quiz | 0 | - | 4.21 | 6,931 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,349 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,462 |
| Elements Named for Countries | 0 | - | 4.53 | 24,769 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,731 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,622 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,516 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,472 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,357 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 26,536 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,749 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,161 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,732 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,652 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 60,027 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,838 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,596 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,721 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,643 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,674 |
| Least-Forested Countries | 0 | - | 4.53 | 65,264 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,497 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,538 |
| Most Forested European Countries | 0 | - | 4.80 | 75,420 |
| Least Forested European Countries | 0 | - | 4.25 | 54,054 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,759 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,851 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,552 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,143 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,679 |
| Countries with Glaciers | 0 | - | 4.97 | 105,514 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,159 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.35 | 17,298 |
