Question

State three characteristics of molecules of matter.

Answer 1

1. Molecules are very small:

   • Molecules are tiny particles that cannot be seen with the naked eye. They make up all matter, such as solids, liquids, and gases.

2. Molecules are always moving:

   • In solids, molecules vibrate in fixed positions.
   • In liquids, they move more freely.
   • In gases, they move very fast and spread in all directions.

3. Molecules are held together by forces:

   • Molecules are held together by attractive forces called intermolecular forces. These forces are strongest in solids, weaker in liquids, and weakest in gases.