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senpower
11 senpowerGrade 3 / The Water Cycle: A Journey Through States of Matter
Developed by Antalya Directorate Of Education
Grade 3
Duration 60
Energizers senpower     38 - Good morning - good afternoon

Location: Classroom/Interior

No. of participants:  All students in a class

Organization: Students standing in a circle

Material: A blindfold

Game description:

The teacher draws a student to go into the middle blindfolded.

The other students hold hands and walk around the circle. The blindfolded student touches a classmate who has to say "good morning" or "good afternoon". At this point, the blindfolded student tries to find out who their classmate is. If they do, they switch and so on until the teacher decides to keep the game going.

Relaxing Exercises senpower     9 - Lion's breath

Lion’s breath is a playful way to release and relax into more peaceful feelings. The trainer tells students that they are going to do a breath called the lion’s breath in order to let go of feelings or thoughts we no longer want. This breath is very helpful in getting those ideas out of us and pushing them far away.

Instructions

  • Imagine that you are a mighty lion. You have a giant roar!
  • Sit on your heels and sit up tall like a mighty, proud, lion. Get ready to let your roar go!
  • Think of a feeling or a thought that you would like to let go. Squeeze your hands into fists, holding tight and thinking of that feeling or thought.
  • Take a deep breath in and let your roar out, stick out your tongue at the same, stretch your arms out wide in front of you and open your hands wide, roaring out the feeling or thought and letting it go.
    • Repeat.
Objectives
  • Understand the stages of the water cycle, including evaporation, condensation, precipitation, and collection.
  • Learn about the different states of matter (solid, liquid, gas) as they relate to water.
  • Observe and describe water in its natural environment
Preparation

Materials:

  • Gather visual aids, such as diagrams of the water cycle. (Annex 1)
  • Prepare a simple water cycle experiment setup: a clear plastic cup, small clay, a plastic wrap, a rubber band, and a small rock.
  • Collect real-life pictures or videos showing examples of the water cycle in nature..
  • Desk lamp
Introduction

Start with a simple question to engage the students: "What happens to water after it rains?" Show a basic illustration of the water cycle, pointing out rain, clouds, and bodies of water like lakes and oceans (Annex 1). Briefly explain that water moves in a cycle, changing from liquid to gas and sometimes to solid. Tell the students they'll get to see how water travels through this cycle in today's lesson, making the process clear and understandable.

Teaching and learning methods
  • Visual Learning: Use diagrams and videos to illustrate the water cycle.
  • Experiential Learning: Conduct a simple experiment to demonstrate evaporation and condensation.
  • Group Discussion: Facilitate conversations among students to encourage the sharing of ideas and observations.
Interdisciplinary connections

Geography: Understand the water cycle's role in weather patterns and climate.

Environmental Science: Discuss the importance of water conservation and the impact of the water cycle on ecosystems.

Resource teacher or other specialists activities

Collaborate with the science lab coordinator to organize a water cycle demonstration.

If available, use digital media to enhance the learning experience with interactive water cycle simulations.

New vocabulary

Evaporation, Condensation, Precipitation, Collection, Water Vapor, Cycle, States of Matter.

Work Flow
  1. Interactive Discussion: Begin by asking students to share their experiences with water in various forms. For example, ask them when they last noticed rain, fog, or ice. This personal connection helps ground the discussion in their own observations and experiences.
  2. Real-Life Examples: Explain how the water cycle impacts daily life:

  • Rain: Discuss how rain is essential for watering plants, which we need for food and oxygen.
  • Snow and Ice: Talk about how snow and ice affect weather and activities, like skiing or building snowmen, and how they provide freshwater as they melt.
  • Evaporation: Describe how evaporation helps cool us off when we sweat, or how it's used in cooking, like boiling water.
  • Condensation: Point out everyday occurrences of condensation, such as dew on grass in the morning or fogged-up windows in a warm car on a cold day.
  • Interactive Diagram (15 min): Use a detailed diagram (Annex 1) to explain each stage of the water cycle.
  1. Water Cycle Experiment (20 min):

Setup (5 min):

Distribute the materials to each student or pair: a clear plastic cup, a small piece of clay, plastic wrap, a rubber band, and a small rock.

Ask students to place a piece of clay inside the bottom of their cup to act as a landscape and pour a small amount of water to create a 'lake'.

Step-by-Step Experiment (15 min):

Create the 'Lake' (2 min):

Instruct students to pour water into the cup, filling it just enough to cover the clay—this represents a body of water in the water cycle.

Evaporation Phase (2 min):

Have students cover the top of the cup with plastic wrap and secure it with a rubber band. Explain that the plastic wrap acts like the atmosphere, and the water in the cup will heat up and evaporate, turning into water vapor.

Simulate the Sun (3 min): Use a desk lamp with an incandescent bulb to consistently mimic sunlight, carefully positioning it to warm the water safely without overheating. If using actual sunlight, ensure it is direct and strong. Discuss how the sun heats water bodies, leading to evaporation. Note: It's advisable to set up this experiment at the beginning of the lesson to allow sufficient time for observation until the end.

Condensation Phase (3 min):

Explain that as the water vapor cools, it turns back into liquid, forming droplets on the underside of the plastic wrap. This demonstrates condensation—when water vapor turns into clouds.

Forming 'Rain' (3 min):

Place the small rock in the center of the plastic wrap, right above the water. This will create a low point for water droplets to collect and eventually 'rain' back into the cup, showing precipitation.

Observation (5 min):

Allow the students a few minutes to watch as condensation forms. Encourage them to make observations and predictions about what will happen over the course of the experiment.

Use this time to discuss with students how this small-scale experiment represents the larger water cycle happening around the world.

Wrap-Up (at the end of the class or the following day):

Return to the experiment to observe the results. There should be droplets on the inside of the plastic wrap and possibly some water that has dripped back into the 'lake'.

Discuss the cycle they observed—evaporation (water heating up and rising), condensation (forming droplets), and precipitation (water falling back to the 'lake').

Reinforce the concepts by asking students to describe each stage and how it contributes to the water cycle.

This hands-on experiment provides a visual and practical demonstration of the water cycle, helping students grasp these foundational scientific concepts through active participation and observation.

Reflection

Have students share what they learned from the experiment and how it relates to the water cycle they see in nature.

Encourage them to ask questions or share any thoughts on how water impacts life on Earth.

Notes

Ensure safety during the experiment, especially if using warm water to speed up evaporation.

Digital Resource

Annex 1