**Introduction:**

The ability to move a glass rod through water in a beaker but not through stone can be explained by the physical properties of the materials involved. This phenomenon can be attributed to the differences in molecular structure and intermolecular forces between water, glass, and stone.

**Properties of Water:**

Water is a polar molecule, meaning it has a partial positive charge on one side and a partial negative charge on the other. This polarity is a result of the unequal sharing of electrons between the oxygen and hydrogen atoms in a water molecule. The polar nature of water molecules allows them to form hydrogen bonds with each other, resulting in strong intermolecular forces.

**Properties of Glass:**

Glass is an amorphous solid composed mainly of silicon dioxide (SiO2). The structure of glass lacks long-range order, and its atoms are arranged in a disordered manner. Unlike water, glass does not have a specific molecular structure or intermolecular forces. Instead, glass has a random arrangement of atoms, giving it a rigid and brittle nature.

**Properties of Stone:**

Stone is a naturally occurring solid composed of various minerals, such as quartz, feldspar, and mica. These minerals have a crystalline structure, meaning their atoms are arranged in a highly ordered and repeating pattern. The intermolecular forces within stone are primarily ionic or covalent, resulting in a rigid and solid structure.

**Explanation of Movement:**

When a glass rod is placed in water, the polar water molecules are attracted to the charged surface of the glass rod. This attraction leads to the formation of hydrogen bonds between water molecules and the glass surface. The strength of these hydrogen bonds allows the glass rod to move freely through the water.

On the other hand, when a glass rod is placed against a stone surface, there is no significant attraction between the glass and stone. The glass rod cannot form strong intermolecular bonds with the stone surface due to the lack of polarity or specific molecular structure in glass. As a result, the glass rod cannot easily move through the stone.

**Conclusion:**

In conclusion, the ability to move a glass rod through water in a beaker but not through stone can be explained by the differences in molecular structure and intermolecular forces between water, glass, and stone. The polarity and hydrogen bonding in water allow the glass rod to move freely, while the lack of polarity and specific molecular structure in glass prevents it from easily moving through stone.

This is because there is presence of more voids in water and we can do it easily but when we talk about stone then u must have read that between solids voids are negligible so that we can't do this .