premise: ice is a kind of solid sent2: melting means a substance changes from a solid into a liquid by increasing heat energy sent3: heat energy can change the state of matter sent4: heat is a kind of heat energy sent5: solid is a kind of state of matter sent6: the sun is a source of radiation / heat called sunlight sent7: liquid is a kind of state of matter.
hypothesis: the heat from the sunlight cause ice to melt