Water and It’s Properties

WATER AND ITS PROPERTIESAim of Lesson 1:1. To describe the structure of

water.2. Describe the properties of

water.3. Importance of water to

Earth’s systems.

These will be used to answer the overall question of “What makes water so important?”

Vocabulary

Word Definition In your words picture

Polarity

Cohesion

Adhesion

Specific Heat

Solvent

What are some of water’s role on Earth?

• Influencing weather• Shaping Earth’s Surface• Supporting Life• Supporting Human Activities

Influencing Weather

• All weather is related to water• Moves from surface to atmosphere

• Clouds

• Falls to surface as• Rain• Snow• Hail• Sleet

• Depends on moisture in Air

Shaping the Earth’s Surface

• Reshapes the landscape• How?

– Wears away rock– Carries away sediment and soil

• Examples:– Flowing rivers– Ocean waves– Glaciers

Supporting Life

• All living things made of water• All biological processes use water• Cellular chemistry• Regulates temperature• Transports substances

• What problems can arise with contaminated water?

Supporting Human Activity

• Necessary for humansBathing, cleaning, and watering lawns and gardens

• More fresh water used in industry than home

• over 20%• Manufacture goods,

cooling power stations, clean industrial products, extract minerals, generate energy

• Most used in agriculture– Irrigate crops– Farm animals