ACTIVITIES ON WATER DAY

 As part of the activities of the CLENA project and Water Day, we are conducting practical,

educational experiments for the students of our institution. We focus on exploring the

mysteries of water. The first experiment involves water and pepper. We sprinkle pepper

over the surface of the water and observe what happens when we touch the surface with

detergent. The students are excited to see how the pepper moves away from the area where

we add detergent. This simple experiment offers insight into the surface tension of water

and reveals the basics of how detergents work. Detergents affect the chemical composition

of water to the extent that they alter surface tension, which we observe in the change in the

movement of pepper grains on the water surface.

The second experiment involves oil and water. We add oil and an effervescent tablet to

colored water and observe what happens. The students are surprised to see how the oil

separates from the water and forms layers, and the lively reaction is fascinating to observe.

Understanding the mixing of oil and water and the effects of the effervescent tablet provides

additional insight into the properties of these substances and their interaction.

While watching a video showing the operation of a wastewater treatment plant, students

observe the entire process of wastewater treatment and learn about the importance and

operation of wastewater treatment plants in our environment.

Through the experience of practical experiments and observations, students develop

teamwork, communication, and collaboration skills. They learn the importance and value of

cooperation and learn to respect the opinions and ideas of others.

Overall, the experiences gained through practical experiments and observations within the

CLENA project enrich the learning process and enable students to become more informed,

curious, and confident, ready to explore and understand the complexity of the world around

them.

Simon Krajnc,

Individual Habilitator