| Body Parts - Sudden Death | 0 | - | 4.86 | 52,191 |
| Bones - Sudden Death | 0 | - | 4.93 | 41,800 |
| International Scientific Units | 0 | - | 4.96 | 149,467 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 60,229 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,129,162 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 146,949 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,360 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 188,444 |
| Speed Symbol by Element | 0 | - | 4.92 | 99,503 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 90,835 |
| Noble Gases | 0 | - | 4.89 | 74,537 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 61,919 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 65,123 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 77,600 |
| Name the Virus | 0 | - | 4.87 | 74,726 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 76,969 |
| Famous Scientists | 0 | - | 4.56 | 41,561 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.90 | 41,279 |
| Scientific Names | 0 | - | 4.32 | 77,038 |
| Things Named For People #3 - Science | 0 | - | 4.84 | 51,919 |
| Elemental Words | 0 | - | 4.96 | 50,596 |
| Metals of Antiquity | 0 | - | 4.93 | 90,445 |
| Body Part Words Quiz | 0 | - | 4.44 | 143,145 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,086 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 173,379 |
| Three Letter Body Parts | 0 | - | 4.39 | 203,003 |
| Human Body A-Z | 0 | - | 4.50 | 125,296 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 85,401 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 114,552 |
| Elements - Sudden Death | 0 | - | 4.92 | 105,983 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 84,083 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 180,415 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.79 | 60,811 |
| Medical Conditions Quiz | 0 | - | 4.78 | 120,929 |
| First Twenty Elements - Sudden Death | 0 | - | 4.81 | 28,733 |
| Simple Machines Quiz | 0 | - | 4.35 | 8,838 |
| Random Symbol to Element | 0 | - | 4.88 | 89,504 |
| Astronomy Quiz | 0 | - | 4.89 | 78,046 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 129,247 |
| Solar System Trivia | 0 | - | 4.93 | 43,274 |
| Body Parts - No Vowels | 0 | - | 4.14 | 24,301 |
| Click the Planet | 0 | - | 4.92 | 63,392 |
| Most Common Body Part Words | 0 | - | 3.92 | 31,024 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 35,335 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 33,297 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,534 |
| Environmental Issues | 0 | - | 4.53 | 26,300 |
| A Quiz About Diamonds | 0 | - | 4.63 | 10,781 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 11,318 |
| Science General Knowledge #1 | 0 | - | 4.53 | 157,691 |
| Science General Knowledge #2 | 0 | - | 4.45 | 105,329 |
| Science General Knowledge #3 | 0 | - | 4.54 | 95,456 |
| Science Vocabulary #2 | 0 | - | 4.52 | 57,691 |
| Word Chain - Science | 0 | - | 4.58 | 53,057 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 37,174 |
| Click the Chemical Element | 0 | - | 4.96 | 75,076 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,065,176 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 37,531 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 34,038 |
| The Sun Quiz | 0 | - | 4.93 | 32,114 |
| First Names of Scientists | 0 | - | 4.50 | 55,138 |
| Groups of Two - Science | 0 | - | 4.25 | 47,494 |
| Science Vocabulary #1 | 0 | - | 4.33 | 69,665 |
| Science Vocabulary #3 | 0 | - | 4.31 | 50,434 |
| Science Decoder | 0 | - | 4.54 | 28,246 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,493 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 27,355 |
| Science True or False | 0 | - | 4.34 | 38,816 |
| Answers are Elements #2 | 0 | - | 4.42 | 53,946 |
| Elements by Picture | 0 | - | 4.27 | 67,620 |
| Periodic Table Elements A-Z | 0 | - | 4.74 | 91,204 |
| Name a Valid Element | 0 | - | 4.64 | 67,701 |
| Medical Acronyms | 0 | - | 4.42 | 93,268 |
| Medical Vocabulary | 0 | - | 4.54 | 56,925 |
| Citrus Fruits | 0 | - | 3.62 | 41,503 |
| "Ologies" Quiz | 0 | - | 4.33 | 94,146 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,965 |
| Fish... or Not a Fish? | 0 | - | 4.44 | 41,853 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,065 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,599 |
| Element... or Pokémon? | 0 | - | 4.98 | 123,989 |
| Brightest Objects in the Sky | 0 | - | 4.41 | 16,999 |
| Planets By Picture Quiz | 0 | - | 4.50 | 53,443 |
| Planets - Multiple Choice | 0 | - | 4.43 | 51,040 |
| Medical Specialties | 0 | - | 4.30 | 88,775 |
| The Diseases They Had | 0 | - | 4.15 | 13,629 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 45,957 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 19,935 |
| Birthstones Quiz | 0 | - | 4.41 | 79,596 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 68,813 |
| Category Elimination - Elements | 0 | - | 4.57 | 51,474 |
| Astronomy Decoder | 0 | - | 4.52 | 36,934 |
| The Jupiter Quiz | 0 | - | 4.64 | 15,999 |
| The Mars Quiz | 0 | - | 4.54 | 18,157 |
| The Saturn Quiz | 0 | - | 4.54 | 11,216 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,806 |
| The Pluto Quiz | 0 | - | 4.63 | 9,448 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 215,791 |
| Name the Constellations Quiz | 0 | - | 4.58 | 43,383 |
| Astronomy True or False | 0 | - | 4.37 | 35,443 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 210,862 |
| The Venus Quiz | 0 | - | 4.15 | 6,687 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.37 | 15,861 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,301 |
| Animals by Skeleton Image | 0 | - | 4.81 | 43,351 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,766 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,851 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 41,972 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,425 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 108,329 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,861 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.90 | 62,039 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,826 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,889 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,117 |
| Worst Plastic Polluting Countries | 0 | - | 4.53 | 64,432 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 39,966 |
| Countries with the Most Forest | 0 | - | 4.88 | 143,755 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.30 | 34,540 |
| Least-Forested Countries | 0 | - | 4.52 | 63,672 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.61 | 62,100 |
| Countries with the Most Forest A-Z | 0 | - | 4.56 | 53,912 |
| Most Forested European Countries | 0 | - | 4.78 | 73,044 |
| Least Forested European Countries | 0 | - | 4.27 | 52,879 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 63,265 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.57 | 37,009 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 45,219 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 80,416 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 54,403 |
| Countries with Glaciers | 0 | - | 4.97 | 102,117 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,281 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,834 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 33,471 |
| Elements Named for Countries | 0 | - | 4.51 | 22,806 |
