Begin the lesson by discussing the various forms of water found on Earth, such as salt water in oceans and fresh water in streams, rivers, and lakes. This introduction will help students understand the diversity of water sources.

Introduce the concept of water changing states with seasonal temperature changes, setting the stage for understanding how water transitions between liquid and solid forms.

Explain how water changes from liquid to solid state in colder parts of the Earth and during colder seasons. Use diagrams and illustrations to support this explanation.

Discuss the pattern of water changing states with seasonal temperature changes, emphasizing how this cycle repeats annually.

Watch the video 'The World of Freshwater' to explore the critical role of freshwater in supporting life on Earth. This video supports understanding by illustrating how freshwater systems function and the consequences of environmental changes.

Engage students in a discussion about the importance of conserving freshwater resources and the impact of human activities on these ecosystems.

Conduct an experiment where students observe how water changes from liquid to solid by freezing water in ice trays. Discuss the conditions necessary for this change.

Use the 'Modeling Land and Water' assessment to have students create a model using materials like modeling clay and water to observe water flow and landform interactions. This activity assesses understanding by having students draw and label their model.

Assign students to observe and record water bodies in their local environment, noting whether they are in liquid or solid state depending on the season.

Have students complete the 'Earth’s Water' assessment to identify and describe different bodies of water, reinforcing their understanding of water characteristics.

Conduct a class discussion to check students' understanding of how water changes states and the factors influencing these changes.

Use the 'Comparing Bodies of Water' assessment to evaluate students' ability to compare different water bodies and explain seasonal changes.

Have students reflect on the lesson by writing a short paragraph about how water changes states and why this is important for Earth's ecosystems.

Review key concepts by revisiting the video 'The World of Freshwater' and discussing its relevance to the lesson topic.

Administer the 'Review – Earth’s Land and Water' assessment to evaluate students' comprehension of the lesson content and their ability to differentiate between geographical features.

Encourage students to extend their learning by exploring local water bodies and documenting their observations in a journal, focusing on changes in state and seasonal variations.