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Difficulty level: Difficulty:
A1-C2
Theme:
Chemistry
Date:
2026-03-17
Click on an empty cell for your first clue.
LOOK UP WORD CLEAR PROGRESS HINT
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á 1
é 2
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ü 6
ý 7
ñ 8
ACROSS
1 calcium
3 aluminium, aluminum
4 to melt, to thaw (=to become a liquid)
6 helium
12 metal
13 zinc (metal, element)
14 atomic nucleus 2 words
15 chlorine
16 sodium
17 sulfur, sulphur
18 uranium
19 explosion (bomb)
DOWN
2 iodine
3 air
5 silicon
7 microscopic (very small)
8 poisonous, venomous
9 platinum
10 molecule
11 fluorine
16 limescale
ACROSS
1 calcium
3 aluminium, aluminum
4 to melt, to thaw (=to become a liquid)
6 helium
12 metal
13 zinc (metal, element)
14 atomic nucleus 2 words
15 chlorine
16 sodium
17 sulfur, sulphur
18 uranium
19 explosion (bomb)
DOWN
2 iodine
3 air
5 silicon
7 microscopic (very small)
8 poisonous, venomous
9 platinum
10 molecule
11 fluorine
16 limescale