Mr. Iwaishi is my best friend.

Mr. Iwaishi is my best friend.

His hobby is collecting loose stones.

There are many beautiful stalactites in this cave.

The children were playing hopscotch in the park.

In this experiment, we will observe the movement of cells using green fluorescent protein.

We visited the ancient dolmen.

Amphibole, a type of mineral, is mainly found in igneous rocks.

Anatase is a type of titanium oxide, characterized by the shape of its crystals.

This cave is rich in guano.