Objective: Children will learn about fog and make fog in a glass jar.‹ Return to Theme
Note: This activity works best with small groups. Caution the children not to touch the jars of hot water.
Fog forms when there is a difference in temperature between the air and the ground with the cooler air currents passing over hot air pressure from moist land or a warm body of water. Since cool air cannot hold as much moisture as warm air, fog forms. In our activity, the cold air from the ice cubes collided with the warm, moist air from the hot water in the jar. These two different temperatures of air collided, causing the water vapor to condense and form a fog. Fog can also form when there is high humidity in the air coupled with enough water vapor in the air.
Fog is a cloud that has formed close to the Earth. Clouds are a collection of very tiny water droplets. The droplets are so tiny and lightweight, they float in the air. When billions of these tiny droplets come together, they form a cloud. In our activity, the tiny water droplets in the warm air were forced together by the cold ice, creating a cloud.
Once the ice cubes are placed on the paper plate, fog will form and water droplets will gather on the glass. The process may take a few minutes for the fog to form.
These lessons are aligned with the Common Core State Standards ("CCSS"). The CCSS provide a consistent, clear understanding of the concepts and skills children are expected to learn and guide teachers to provide their students with opportunities to gain these important skills and foundational knowledge.
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There are currently no Common Core Standards for pre-k, but these lessons are aligned as closely as possible to capture the requirements and meet the goals of Common Core Standards. However, these lessons were neither reviewed or approved by the National Governors Association Center for Best Practices or the Council of Chief State School Officers, which together are the owners and developers of the Common Core State Standards.