. "If you leave a box of crayons exposed to heat, generally the ones that are closer to the heat source will melt first. If you leave a box of crayon on the back of the car, exposed to sunlight; the ones on top will melt first."@en . "Do all crayons melt at the same time"@en . "If you leave a box of crayons exposed to heat, generally the ones that are closer to the heat source will melt first. If you leave a box of crayon on the back of the car, exposed to sunlight; the ones on top will melt first."@en . .