Science quiz
Science answers that start with J
Every answer on this board begins with J. 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
- 7 answers
- Limit
- 2:00
- Level
- Medium
- Checked
- 2026.10.03
- Answers
- 7
- Time limit
- 2:00
- 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 J.
| Clue | Answer |
|---|---|
| SI unit of energy, work, heat | Not found yet |
| Fifth planet from the Sun | Not found yet |
| Geological period that began 201.4 million years ago | Not found yet |
| NASA spacecraft that entered orbit around Jupiter in 2016 | Not found yet |
| NASA space telescope launched on 25 December 2021 | Not found yet |
| Moon of Saturn that shares its orbit with a sister moon, Epimetheus | Not found yet |
| Narrow band of strong wind high in the atmosphere, blowing from west to east | Not found yet |
About this quiz
A mixed science round with one rule: the answer always starts with J. Knowing the first letter helps more than you might expect, and less than you would like.
- There are 7 clues on this board.
- 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]National Institute of Standards and Technology. SP 330: The International System of Units, section 2.
- [2]BIPM. The SI.
- [3]NASA. Planetary Fact Sheet (metric).
- [4]NASA. Juno.
- [5]NASA. James Webb Space Telescope.
- [6]NASA. Janus, a moon of Saturn.
- [7]NOAA. JetStream: the jet stream.
Last checked October 3, 2026
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