A series of photos showing how a sample of blue-dyed water freezes, losing its blue colour, over a time period of 42 minutes. After 34 minutes, clear ice completely surrounds a still-liquid, blue ...

The task is to determine which glass, labeled A, B, C, or D, can hold the most water in five seconds. Observational skills and a sharp mind help solve it. The answer is the glass with the paper ...

Haai in het water. Afbeelding via Depositphotos. Sharks, like all fish, rely on gills to extract oxygen from water. Water must flow over their gills for this gas exchange to occur. Sharks have several ...

Haaienrug en rugvin boven water. Afbeelding via Depositphotos ... experience when a sand tiger shark decided to get up close and personal with its tank’s glass wall. Visitors’ reactions, immortalized ...