Objective

By the end of this lesson, you will understand the logic-based concepts of water and the water cycle.

Materials and Prep

• Water
• Transparent container (such as a glass or plastic cup)
• Marker or tape
• Small heat-resistant container (such as a metal or glass bowl)
• Stove or heat source
• Ice cubes

No prior knowledge is required for this lesson.

Activities

1. Activity 1: Water Logic

   Fill the transparent container with water and place it on a flat surface. Ask yourself questions about water and its properties. For example:

   • Why does water flow downwards?
   • Why does water take the shape of its container?
   • Why does water evaporate when heated?

   Think about the answers and discuss them with your teacher or a family member.

2. Activity 2: Water Cycle Experiment

   Draw or mark a line on the transparent container to indicate the water level. Place the container on the heat-resistant surface. Heat the small container of water on a stove or heat source until it starts boiling. Carefully hold the transparent container upside down over the small container, making sure the opening is submerged in the boiling water. Observe what happens inside the container.

   After a few minutes, remove the transparent container and place it on a cool surface. Watch as the water droplets form on the inner surface of the container. These droplets represent condensation.

   Next, place an ice cube on top of the container and observe what happens. Water droplets will start forming on the outer surface of the container. These droplets represent precipitation.

   Discuss the different stages of the water cycle and how they are demonstrated in this experiment.

Third Grade Talking Points

• "Water is essential for life on Earth."
• "Water can exist in different states: solid (ice), liquid (water), and gas (water vapor)."
• "Water has special properties that make it unique, such as its ability to flow, take the shape of its container, and evaporate when heated."
• "The water cycle is the continuous movement of water on, above, and below the Earth's surface."
• "The water cycle consists of processes like evaporation, condensation, and precipitation."
• "Evaporation is when water changes from a liquid to a gas (water vapor) and rises into the atmosphere."
• "Condensation is when water vapor cools and changes back into liquid droplets, forming clouds."
• "Precipitation occurs when water droplets in the clouds combine and fall to the Earth's surface as rain, snow, sleet, or hail."
• "The water cycle is essential for maintaining Earth's water balance and ensuring the availability of freshwater for plants, animals, and humans."