Properties of Water - Weeblybiologywithmsgeorge.weebly.com/.../22439118/water___nos.pdfProperties of...
Transcript of Properties of Water - Weeblybiologywithmsgeorge.weebly.com/.../22439118/water___nos.pdfProperties of...
Properties of Water
SC.912.L.18.12 Discuss the special properties of water that
contribute to Earth’s sustainability as an environment for life:
cohesive behavior, ability to moderate temperature, expansion
upon freezing, and versatility as a solvent.
1. Students will explain the properties of
water at a conceptual level.
Hydrogen Bonding: involve a weak interacting where a hydrogen atom bonds with an oxygen atom
Because of hydrogen bonding, water is a polar molecule.
Polarity: the positive (oxygen end) attracts the negative (hydrogen end) of a nearby water molecule
1. Students will explain the properties of
water at a conceptual level.
Cohesion: the hydrogen bonds create
surface tension on the water
This allows water droplets to form and
insects and leaves to rest on the surface of
the water.
1. Students will explain the properties of
water at a conceptual level.
Temperature Moderation: water has the ability to heat up and
cool down slowly because it takes a lot of energy to do so.
This is why the water is cooler than the sand on a hot day at
the beach.
1. Students will explain the properties of
water at a conceptual level.
Expansion Upon Freezing: as water goes from liquid to solid, it become more dense,the molecules form a crystalline structure when they freeze
This is why ice floats in water!
1. Students will explain the properties of
water at a conceptual level.
Universal Solvent: many substances are able to dissolve in
water due to its structure
2. Students will explain how the properties
make water essential for life on Earth.
Think! How do these properties of water allow life on Earth to
be possible?
Record in your notebook and be ready to share out!
Scientific Method
SC.912.N.1.1
1. Student will design and/or evaluate a
scientific investigation using evidence of
scientific thinking and/or problem solving.