Difficulty level:
Difficulty:
B2-C2
Theme:
Science
Date:
2026-01-01
Click on an empty cell for your first clue.
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ACROSS
1
chain reaction 3 words
5
to inflate (=to fill with gas or air)
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moldy, mouldy (covered with mold)
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molten, melted
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copper (metal, element)
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to recharge, to charge up (=to add energy; e.g., to an electric battery)
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foam
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fluorine
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limescale
19
wall socket, power outlet
DOWN
2
to evaporate (=to transition from liquid to gas)
3
nitrogen
4
silicon
6
matter (physics)
7
nuclear weapon, atomic bomb 2 words
8
to melt, to thaw (=to become a liquid)
11
mercury (chemical element)
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battery (electric)
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mold, mould (fungus)
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iodine
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vacuum (region that contains no matter)
ACROSS
1
chain reaction 3 words
5
to inflate (=to fill with gas or air)
6
moldy, mouldy (covered with mold)
8
molten, melted
9
copper (metal, element)
10
to recharge, to charge up (=to add energy; e.g., to an electric battery)
12
foam
17
fluorine
18
limescale
19
wall socket, power outlet
DOWN
2
to evaporate (=to transition from liquid to gas)
3
nitrogen
4
silicon
6
matter (physics)
7
nuclear weapon, atomic bomb 2 words
8
to melt, to thaw (=to become a liquid)
11
mercury (chemical element)
13
battery (electric)
14
mold, mould (fungus)
15
iodine
16
vacuum (region that contains no matter)