An ice block 10 centimeters on each side melted, how much would it raise the water level in a tank that is 100 centimeters long by 40 centimeters wide?

Volume of the ice block = 10 x 10 x 10 = 1000 cm³

Height increased = 1000 ÷ (100 x 40) = 1000 ÷ 4000 = 0.25 cm

Answer: The height will raise by 0.25cm