1.   Ice always needs heat to melt.

2.   Ice needs heat to melt.

3.   The heat has melted the sap in the pine trees, and the dampness carries that bright smell.

4.   Intense heat had melted and buckled the twisting frame that caught fire.

5.   As the planets grew in mass, the heat they generated melted their building blocks into their component minerals.

6.   A spider flees its web a few seconds before the heat melts it.

7.   He said the heat had melted the bucket, causing the hot coil to fall against the wooden side of a horse stall.

8.   Heat had melted the French doors to the deck.

9.   Heat until cheese melts.