Objective

By the end of this lesson, the student will be able to understand the water cycle and the concept of water vapor.

Materials and Prep

• A clear glass or plastic container
• A small bowl
• A plate
• A kettle or pot
• Water
• A marker or pen
• Optional: crayons or colored pencils

Prior knowledge required: Basic understanding of water and its different forms (solid, liquid, gas).

Activities

• Activity 1: Water Cycle Drawing

Ask the student to draw a simple picture of the water cycle, including clouds, rain, and a body of water.

• Activity 2: Evaporation Experiment

Fill the small bowl with water and place it in the center of the plate. Ask the student to pour water into the plate, making sure it doesn't overflow. Place the glass or plastic container upside down over the bowl. Leave it undisturbed for a few hours and observe what happens.

• Activity 3: Condensation Observation

Boil some water in a kettle or pot. Ask the student to hold the plate above the steam, allowing the steam to come into contact with the plate. Observe what happens on the plate.

Talking Points

• Water exists in different forms: solid, liquid, and gas.
• When water is heated, it turns into a gas called water vapor.
• Water vapor is invisible, but we can see it when it condenses into tiny droplets, forming clouds.
• When the water droplets in the clouds become too heavy, they fall to the ground as rain, snow, or other forms of precipitation.
• The water cycle is the continuous movement of water on Earth, from the ground to the atmosphere and back again.
• Evaporation is when water changes from a liquid to a gas and rises into the air.
• Condensation is when water vapor cools down and changes back into liquid form, forming clouds.
• Precipitation is when water falls from the clouds to the ground as rain, snow, sleet, or hail.