On a sunny afternoon, the twins, Victoria and Jose, were playing by the riverside. The gentle river bubbled along, and the sun cast shimmering patterns on the water. The twins, with their boundless energy, were exploring the world around them.

Victoria: Look, Jose! I found a shiny rock! I wonder what it's made of.

Jose: Cool! It might be a special kind of mineral. Let's see if we can figure it out like real scientists!

Victoria and Jose loved pretending to be scientists. They knew that scientists observed, experimented, and tried to understand how things worked. Today, the riverbank was their laboratory.