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This online resource discusses the distribution of earth's water.

These two short online tutorials discuss how the earth rotates and then the earth's revolutions.

In the first URL, the YouTube video explains why earth has spring, summer, autumn and winter seasons. The second URL summarizes the key takeaway points.

This YouTube video will guide you through a fun activity where you will draw the earth's continents and oceans.

This online resource discusses the importance of the ocean, the layers and composition of the ocean and how it moderates climates.

This YouTube video investigates the structure and composition of the sun.

This online resource investigates the internal structure, outer layers and surface features of the sun.

These four short online lessons cover the following:

• What is the sun?
• Interior of the sun
• Outer layers of the sun
• Surface features of the sun

This online resource investigates the features and topology of the ocean floor, the effects of wave erosion and the landforms created by coastal depositions.