
The energy might come from a campfire. The fire gives off heat energy. It makes the marshmallow hot. The marshmallow starts to melt [change from a solid to a liquid]. It gets gooey. It gets toasty.
Photo Credit: sumos/Alamy Stock Photo
Storms bring thunder and lightning. They can also bring strong … read more
Heavy rain can make the puddles too big. The extra … read more
Gladys worked on a huge computer. It was the size … read more
© 2026 McGraw-Hill Education. All Rights Reserved.