Difficulty level:
Difficulty:
B2-C2
Theme:
Science
Date:
2026-08-27
Click on an empty cell for your first clue.
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21
ACROSS
1
steam, vapour
5
fertile (able to bear children)
7
vacuum (region that contains no matter)
9
biologist
10
acid (chemistry)
11
chemical (relating to chemistry)
14
alloy
15
smog
16
endangered species 2 words
18
gene (biology)
19
solid (not liquid or gas)
20
battery (electric)
21
ornithology
DOWN
2
fluorine
3
greenhouse effect
4
pressure (physics)
6
bleach (disinfectant chemical)
8
to plug in (=to connect an electrical device)
12
magnet
13
to rot (=to suffer decomposition due to biological action)
17
species (group of plants or animals)
ACROSS
1
steam, vapour
5
fertile (able to bear children)
7
vacuum (region that contains no matter)
9
biologist
10
acid (chemistry)
11
chemical (relating to chemistry)
14
alloy
15
smog
16
endangered species 2 words
18
gene (biology)
19
solid (not liquid or gas)
20
battery (electric)
21
ornithology
DOWN
2
fluorine
3
greenhouse effect
4
pressure (physics)
6
bleach (disinfectant chemical)
8
to plug in (=to connect an electrical device)
12
magnet
13
to rot (=to suffer decomposition due to biological action)
17
species (group of plants or animals)







