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Which temperature has water the highest density at?

0°C
-52°C
4°C
97°C
4 degrees C turns out to be the temperature at which liquid water has the highest density. If you heat it or cool it, it will expand. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled.
ShadowMaster
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wikipedia → Maximum density
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Answers by country

0°C
-52°C
4°C
97°C
answers
flagMalaysia
10%
0%
80%
0%
10
flagAustralia
11%
11%
77%
0%
27
flagGhana
13%
6%
73%
6%
15
flagCanada
0%
25%
62%
12%
16
flagPoland
17%
16%
56%
8%
1319
flagGermany
12%
26%
56%
4%
41
flagGreece
24%
20%
56%
0%
25
flagIndia
23%
10%
55%
10%
234
flagPakistan
33%
9%
52%
4%
21
flagthe United States
21%
14%
51%
12%
125
flagNigeria
33%
8%
45%
8%
24
flagSingapore
40%
10%
40%
10%
10
flagthe United Kingdom
15%
36%
35%
6%
65
flagthe Philippines
27%
55%
11%
5%
18

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