Difficulty level:
Difficulty:
B2-C2
Theme:
Science
Date:
2026-07-28
Click on an empty cell for your first clue.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
ACROSS
1
to steam (=to emit vapor or steam)
3
vacuum (region that contains no matter)
5
gas (state of matter)
9
theory
10
extinction (disappearance of a species)
12
smog
13
copper (metal, element)
14
fuel (to power an engine)
15
solid (not liquid or gas)
16
molecule
17
explosion (bomb)
DOWN
1
molten, melted
2
microscope
3
time travel 3 words
4
alloy
6
reversible (can be undone)
7
pressure (physics)
8
gene (biology)
11
to analyze, to analyse
14
chlorine
ACROSS
1
to steam (=to emit vapor or steam)
3
vacuum (region that contains no matter)
5
gas (state of matter)
9
theory
10
extinction (disappearance of a species)
12
smog
13
copper (metal, element)
14
fuel (to power an engine)
15
solid (not liquid or gas)
16
molecule
17
explosion (bomb)
DOWN
1
molten, melted
2
microscope
3
time travel 3 words
4
alloy
6
reversible (can be undone)
7
pressure (physics)
8
gene (biology)
11
to analyze, to analyse
14
chlorine