2/14 A/B DayLEQ: What physical properties of water make it unique?

1. What is susceptibility? 2. What do we call a chemical that causes cancer?3. What disease would you predict someone to have if his mother drank alcohol when she was pregnant?4. What is one benefit of using pesticides?5. What is one risk of using preservatives in our foods?

Our Progress This Year:

Unit 1: Geologic EvolutionUnit 2: ChemistryUnit 3: HydrosphereUnit 4: Cells

WATER

Today’s LEQ: What physical properties of water make it unique?

By the end of today, you should be able to…

1. Describe buoyancy and surface tension

2. Explain the special qualities relating to water’s density, specific heat, and solubility

Focus Vocabulary

107. Surface Tension108. Buoyancy

Lab Procedures1.Do not write on class sets2.Follow all instructions every time3.All work goes in your notebook4.Teamwork5.Assign Partner numbers

Physical Properties of WaterDensity

Solubility

Surface Tension

BuoyancySpecific Heat

Colder water = denser water

Water is the universal solvent!

The “skin” that covers water’s surfaceThe upward

push of water molecules on a substance

Water heats and cools very slowly!

Physical Properties of WaterDensity

Solubility

Surface Tension

BuoyancySpecific Heat

Colder water = denser waterWater is the universal solvent!The “skin” that covers the surface of water

The upward push of water molecules on a substance

Water heats and cools very slowly!

Physical Properties of WaterDensity

Solubility

Surface Tension

BuoyancySpecific Heat

Colder water = denser waterWater is the universal solvent!The “skin” that covers the surface of water

The upward push of water molecules on a substance

Water heats and cools very slowly!

WATER

Summarizer:

In 4-6 sentences, write a paragraph to describe what

physical properties of water make it unique!

COLDER WATER

WARMER WATER