The Sun’s Secret

An exciting experiment for our little nature scientists! "Let’s Discover the Sun’s Secret: The Water Trail Adventure" is a fun and educational environmental activity designed for preschool and elementary children ages 3–10. In this activity, children will step into the mysterious world of nature by observing the power of the sun and the process of water evaporation.

This experiment will not only increase children’s environmental awareness but also develop their scientific thinking skills. While having fun, children will learn, discover the wonders of nature, and better understand the value of water.

Purpose of the Activity:

To observe and understand the effect of sunlight on water evaporation.

To gain basic knowledge about the natural water cycle.

To improve observation skills by comparing sunny and shady environments.

To practice patience and focus through a scientific experiment and interpret the results.

To learn the importance of valuing water and using it wisely.

To foster feelings of love and respect for nature.

Story First

Tako was enjoying a tasty meal. But suddenly—oh no! He spilled water on himself! A little accident…

Materials

Activity

First, prepare two small containers of the same size (for example, plastic cups or bowls) and a measuring cup. Fill both containers with the same amount of water (under adult supervision). If you wish, you can mark the water level.

Place one container of water in a sunny spot and the other in a shaded area. Measure and record the amount of water. Ask the children to observe both containers and make predictions about what will happen. Remember, it can get very hot under the sun, so adults should always accompany the children and take necessary precautions for sun protection.

Check the containers every hour (or more frequently). The children will observe that the water in the sun evaporates faster than the water in the shade. Measure and record the changes in water level at each check. You can display these measurements on a chart or graph for more effective learning. Encourage the children to record their observations by drawing pictures or writing short sentences. This activity helps them understand the process of water evaporation and the effect of sunlight on this process.

After the experiment, review the results with the children. Discuss the differences in drying times between the sunny and shaded containers. Emphasize the importance of solar energy and the value of water. Talk about ways we can conserve water and prevent waste. For example, explain the importance of using water wisely. After the experiment, remember to clean the containers and place them in the recycling bin. Highlight the importance of being environmentally responsible.

Attention!

Avoid prolonged exposure to sunlight during the experiment. Use appropriate sun protection and seek shade when necessary to reduce the risk of sunburn.

The experiment area should be a flat and safe surface. Make sure there are no glass shards, sharp objects, or hazardous materials around.

Ensure that the area where water is spilled is clean and organized. After the experiment, take necessary measures to ensure that the spilled water does not harm the environment.

Children must conduct the experiment under adult supervision. Continuous monitoring is essential to ensure their safety while playing with water.

During the observation process, both children and adults should consume enough water. Be mindful of fluid loss in hot weather.

Make sure the materials used in the experiment (e.g., measuring cups) are safe and durable. Choose suitable items to reduce the risk of breaking or spilling.

Evaluation Questions

Did the water dry at the same time in the sun and in the shade? Why do you think that happened?

If the water dried faster on a sunny day, what could be the reason?

How important do you think the sun is for water to dry?

Why did it take longer for the water to dry in the shade? Explain.

On a rainy day, how long do you think it would take for the water to dry? Predict and explain why.

If we change the amount of water used in our experiment, would the drying time change? How would it change?

Is the drying of water affected only by the sun? What other factors might there be?

What was the most important thing you learned from this experiment?