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Science quiz

Science answers that start with H

Every answer on this board begins with H. The clues are a mixed bag: elements, units, planets, rocks, bones and whatever else the letter allows. Type the answers in any order.

Format
Type them all
Items
15 answers
Limit
3:45
Level
Medium
Checked
2026.10.03
Answers
15
Time limit
3:45
Order
Any order
Matching
Case and accents ignored
  • Type an answer; it files itself the moment it matches.
  • One answer can fill several slots.
  • Give up at any time to see what you missed.
  • Pause whenever you like (Esc). The board hides while the clock is stopped.

Answer each science clue. Every answer starts with H.

Answer, part 1 of 2
ClueAnswer
SI unit of frequencyNot found yet
Bone or bones: upper armNot found yet
Compound with the formula H₂O₂Not found yet
Cranial nerve XII: muscles of the tongueNot found yet
Dwarf planet: one of the fastest rotating large objects in the solar systemNot found yet
SI prefix for 10²Not found yet
Beaufort scale force 12Not found yet
Element 1, symbol HNot found yet
Answer, part 2 of 2
ClueAnswer
SI unit of inductanceNot found yet
Compound with the formula HClNot found yet
Element 2, symbol HeNot found yet
Compound with the formula H₂SNot found yet
Element 67, symbol HoNot found yet
Element 72, symbol HfNot found yet
Element 108, symbol HsNot found yet

About this quiz

A mixed science round with one rule: the answer always starts with H. Knowing the first letter helps more than you might expect, and less than you would like.

  • There are 15 clues on this board, 5 of them for chemical elements.
  • Element clues give the atomic number and the symbol.
  • Spelling is forgiving about capitals, accents and hyphens, and both British and American element spellings are accepted.

Sources

  1. [1]National Institute of Standards and Technology. SP 330: The International System of Units, section 2.
  2. [2]BIPM. The SI.
  3. [3]National Cancer Institute, SEER Training. Divisions of the skeleton.
  4. [4]PubChem, National Institutes of Health. PubChem compound database.
  5. [5]U.S. National Library of Medicine. Medical Subject Headings: Cranial Nerves.
  6. [6]National Cancer Institute, SEER Training. The peripheral nervous system.
  7. [7]NASA. Dwarf planets.
  8. [8]BIPM. SI prefixes.
  9. [9]Met Office. Beaufort wind force scale.
  10. [10]PubChem, National Institutes of Health. Periodic Table of Elements.

Last checked October 3, 2026

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