| Body Parts - Sudden Death #1 | 0 | - | 4.85 | 61,638 |
| Bones - Sudden Death | 0 | - | 4.95 | 49,416 |
| Body Part Cliches | 0 | - | 4.43 | 123,137 |
| Bones of the Human Body | 0 | - | 4.52 | 40,664 |
| International Scientific Units | 0 | - | 4.95 | 155,666 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,351 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,167 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,224,845 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,970 |
| Elements by Symbol | 0 | - | 4.92 | 195,874 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,836 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,586 |
| Noble Gases | 0 | - | 4.89 | 77,588 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,154 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,188 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,049 |
| Name the Virus | 0 | - | 4.86 | 76,403 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,965 |
| Famous Scientists | 0 | - | 4.57 | 42,502 |
| Elements Whose First Letter Doesn't Match the Symbol | 0 | - | 4.86 | 17,036 |
| Scientific Names | 0 | - | 4.32 | 78,222 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,670 |
| Elemental Words | 0 | - | 4.96 | 52,051 |
| Metals of Antiquity | 0 | - | 4.94 | 93,016 |
| Body Part Words | 0 | - | 4.43 | 145,397 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,704 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,931 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,350 |
| Human Body A-Z | 0 | - | 4.51 | 128,699 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,850 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,647 |
| First Twenty Elements - Sudden Death | 0 | - | 4.82 | 35,130 |
| Elements - Sudden Death | 0 | - | 4.91 | 126,975 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.88 | 54,110 |
| Famous Effects | 0 | - | 4.62 | 12,182 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,133 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,927 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,600 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,258 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,393 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,075 |
| Random Symbol to Element | 0 | - | 4.88 | 92,363 |
| Astronomy Quiz | 0 | - | 4.90 | 81,907 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,021 |
| Solar System Trivia | 0 | - | 4.93 | 46,167 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,132 |
| Click the Planet | 0 | - | 4.96 | 90,443 |
| Most Common Body Part Words | 0 | - | 3.88 | 31,562 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,440 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 12,042 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,377 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,426 |
| Environmental Issues | 0 | - | 4.54 | 26,745 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 40,227 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,835 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,068 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,562 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,339 |
| Word Chain - Science | 0 | - | 4.59 | 54,459 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,458 |
| Click the Chemical Element | 0 | - | 4.96 | 79,480 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,092,033 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,710 |
| The Sun Quiz | 0 | - | 4.93 | 34,213 |
| First Names of Scientists | 0 | - | 4.50 | 56,554 |
| Groups of Two - Science | 0 | - | 4.26 | 48,167 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,480 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,722 |
| Science Decoder | 0 | - | 4.52 | 28,668 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,188 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,139 |
| Science True or False | 0 | - | 4.35 | 40,047 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,852 |
| Elements by Picture | 0 | - | 4.28 | 69,633 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,324 |
| Name a Valid Element | 0 | - | 4.64 | 69,665 |
| Medical Acronyms | 0 | - | 4.43 | 96,400 |
| Medical Vocabulary | 0 | - | 4.54 | 58,744 |
| Birthstones by Month | 0 | - | 4.41 | 80,520 |
| Citrus Fruits | 0 | - | 3.63 | 41,973 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,442 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,326 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,391 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,715 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,113 |
| Element... or Pokémon? | 0 | - | 4.98 | 130,509 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 27,881 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,317 |
| Planets - Multiple Choice | 0 | - | 4.41 | 53,244 |
| Medical Specialties | 0 | - | 4.29 | 91,062 |
| The Diseases They Had | 0 | - | 4.15 | 13,921 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.67 | 55,640 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,675 |
| The Pluto Quiz | 0 | - | 4.61 | 9,795 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,255 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,367 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,313 |
| Astronomy Decoder | 0 | - | 4.50 | 37,883 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,404 |
| The Mars Quiz | 0 | - | 4.55 | 18,593 |
| The Saturn Quiz | 0 | - | 4.54 | 11,515 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,771 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 224,049 |
| Name the Constellations | 0 | - | 4.58 | 44,735 |
| Astronomy True or False | 0 | - | 4.39 | 36,301 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,060 |
| The Venus Quiz | 0 | - | 4.21 | 6,897 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,080 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,115 |
| Elements Named for Countries | 0 | - | 4.52 | 24,463 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,660 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,083 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,385 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,349 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,973 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,790 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,566 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,120 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,315 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,498 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,822 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,709 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,170 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,409 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,734 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,481 |
| Least-Forested Countries | 0 | - | 4.53 | 64,957 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,235 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,239 |
| Most Forested European Countries | 0 | - | 4.80 | 74,999 |
| Least Forested European Countries | 0 | - | 4.25 | 53,831 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,484 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,709 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,356 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,793 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,473 |
| Countries with Glaciers | 0 | - | 4.97 | 104,742 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,085 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.35 | 17,064 |
