This World of Things

Clear glass, Clean water, Clear plastic

Transparent materials like clear glass, clean water, and clear plastic allow light to pass through completely, so we can see through them clearly. Wood and metal are opaque.

Mango tree, Bird, Water

Natural things exist in nature without being made by humans. Mango trees, birds, and water occur naturally. Tables and shoes are artificial as they are made by people.

It flows, It is a liquid, It changes shape

Water is a liquid that flows and changes shape according to its container. It does not keep its shape like solids do.

The paper appears to change color

When you look through colored transparent materials, objects appear to change color. The chapter mentions that white paper looks different when viewed through colored plastic or glass.