Water's Properties and Earth's Systems
aligned to Ngss Hs-ess2-5
Learning Objective
I can relate water's unique properties to its role in Earth's systems.
Lesson Flow
Watch Video
Water - Liquid Awesome: Crash Course Biology #2
CrashCourse
Guided Notes
Key concepts students will learn:
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Water molecules are polar, with a slightly negative charge on the oxygen atom and slightly positive charges on the hydrogen atoms, leading to hydrogen bonds between water molecules.
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Water's high cohesion due to hydrogen bonds results in high surface tension, allowing some insects to walk on water, while adhesion describes water's attraction to other substances like glass.
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Water is an amazing solvent because its polarity allows it to dissolve more substances than any other liquid, and substances that dissolve in water are called hydrophilic, while those that don't are called hydrophobic.
Practice
3 questions • Multiple choice & Short answer
Exit Ticket
“Explain how water's high heat capacity impacts Earth's climate, and provide a specific example from the video.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
