Difficulty level:
Difficulty:
B2-C2
Theme:
Science
Date:
2026-06-26
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
18
19
20
21
22
23
ACROSS
1
smog
2
wormhole (in space)
6
crystal
9
molecule
11
bubble
13
heavy metal (material)
17
theory
18
to recharge, to charge up (=to add energy; e.g., to an electric battery)
20
resistance (physics; force that tends to oppose motion)
22
vacuum (region that contains no matter)
23
magnet
DOWN
1
blackout, power outage
3
uranium
4
zinc (metal, element)
5
reflex (automatic response to a stimulus)
6
limescale
7
titanium
8
Nobel Prize
10
time travel
12
selenium
14
matter (physics)
15
gene (biology)
16
paradox
19
pressure (physics)
21
species (group of plants or animals)
ACROSS
1
smog
2
wormhole (in space)
6
crystal
9
molecule
11
bubble
13
heavy metal (material)
17
theory
18
to recharge, to charge up (=to add energy; e.g., to an electric battery)
20
resistance (physics; force that tends to oppose motion)
22
vacuum (region that contains no matter)
23
magnet
DOWN
1
blackout, power outage
3
uranium
4
zinc (metal, element)
5
reflex (automatic response to a stimulus)
6
limescale
7
titanium
8
Nobel Prize
10
time travel
12
selenium
14
matter (physics)
15
gene (biology)
16
paradox
19
pressure (physics)
21
species (group of plants or animals)