Solid to Liquid: Melting — Reading Comprehension

Melting is a process where a solid changes into a liquid. This happens when the solid is heated, and its temperature rises. The heat gives energy to the particles inside the solid, making them move faster and break free from their fixed positions.

Every solid has a special temperature called the melting point. This is the temperature where the solid starts to become a liquid. For example, the melting point of ice is 0°C (32°F). When ice gets warm enough, it melts and turns into water.

Heat is a form of energy that causes melting. When you leave a chocolate bar in the sun, the heat from the sun gives energy to the chocolate particles. As they move faster, the chocolate melts and becomes soft and gooey. This is an example of a phase change, when matter changes from one state (solid) to another (liquid).

Melting happens in many places around us. In winter, road salt is used to melt ice on sidewalks and roads. The salt lowers the melting point of ice, making it melt even when it is cold outside. In cooking, butter melts in a hot pan, and cheese melts on pizza.

The process of melting is important in nature and in our daily lives. It helps plants get water from melting snow. It also helps people shape and use materials like metal by melting and molding them into different shapes.

Interesting Fact: The metal gallium can melt in your hand because its melting point is only about 30°C (86°F)!

What is melting?

What is the melting point of ice?

What gives energy to particles during melting?

Why does salt melt ice on roads?

What happens when chocolate is left in the sun?

How does melting help plants?

Melting is a phase change. True or false?

Which word means 'tiny piece of matter'?