Do Now 1)What is the formula for density? 2)What is the volume of the block? 3)An object has a mass of 30g and a volume of 10 cm 3. What is the density? D= m V V = length x width x height V = 5cm x 5cm x 5cm V = 125 cm 3 D= 30g 10cm 3 D = 3 g/cm 3

Homework and Announcements Due Concept Map Pages Homework USA TestPrep Calculating density worksheet science fair project ideas Announcements Science Fair Projects – Due November 12/13

Title: Calculating Density – Mini Lab L.O. SWBAT determine the mass, volume, and density of an irregularly shaped object.

Review

Calculating the density of an irregularly shaped object. 1.Determine the mass 2.Determine the volume 3.Calculate the density

Mini-Lab Part 1 - Bolts 1.Use the digital scale to find the mass of the bolt. Mass of bolt= _________ 2.Carefully pour water into the beaker. 3.Record the volume of the water. V intial = ________ 4.Carefully place the bolt in the beaker. 5.Record the volume of the water. V final= ________ 6.Calculate the volume of the displaced water. V final - V intial = ________ 7.Calculate the density of the bolt. D = m ÷ V =

Mini-Lab Part 2 - nut 1.Use the digital scale to find the mass of the bolt. Mass of nut= _________ 2.Carefully pour water into the beaker. 3.Record the volume of the water. V intial = ________ 4.Carefully place the nut in the beaker. 5.Record the volume of the water. V final= ________ 6.Calculate the volume of the displaced water. V final - V intial = ________ 7.Calculate the density of the nut. D = m ÷ V =

Brain Pop – Matter and Measuring Density

Title: Changes of State L.O. SWBAT describe the changes between solids and liquids, liquids and gas, solids and gas.

SOLIDS Container No Container Definite Shape Definite Volume Particles in a solid …

LIQUIDS Container No Container Indefinite Shape Definite Volume Particles in a liquid …

GASES No Container Indefinite Shape Indefinite Volume Particles in a gas … Container

The five states of matter: LIQUIDS SOLIDS GASES Higher Temperature Lower Temperature PLASMAS (only for low density ionized gases) BOSE- EINSTEIN CONDENSATE Thermal Energy

Changing States of Matter Draw the chart in your notes!! Solid Liquid Gas + heat Melt Vaporization + heat Freeze - heat condensation - heat

Changes: Solid and Liquid Melting: Solid → Liquid Melting point: Temperature When melting occurs Big Idea: When a substance melts, the particles in the solid vibrate so fast that they break free from their fixed positions. → + Thermal Energy

Changes between Liquid and Solid Freezing: Liquid → Solid Freezing point: Temperature When freezing occurs Big Idea: When a substance freezes, the particles in the liquid move so slowly that they begin to take on a fixed positions. → - Thermal Energy

Pop Quiz True of False Melting and freezing are reversible physical changes of matter. True

Changes: Liquid and Gas Vaporization: Liquid → Gas. Takes place only on the surface of the liquid. Boiling: Liquid → Gas. Occurs when liquid changes to gas below the surface of the liquid as well as at the surface. Boiling Point: Temperature at which liquid boils. + Thermal Energy →

Changes between Liquid and Gas Condensation: Gas → Liquid. Big Idea: During condensation, the particles loose enough thermal energy to form a liquid. - Thermal Energy →

 Sublimation: Solid → Gas.  During Sublimation, particles of a solid do not pass through the liquid state as they form a gas. Changes between Solid and Gas + Thermal Energy → When dry ice becomes gas, it cools water vapor in the nearby air. The water vapor then condenses into a liquid, forming fog around the dry ice.

REVIEW

Changing States of Matter Draw the chart in your notes!! Solid Liquid Gas + heat Melt Vaporization + heat Freeze - heat condensation - heat

23 What does that look like.

Summary (4-5 sentences) Topic Sentence: Restate the learning objective. Ideas for Supporting Sentences: Describe how matter changes. Define Key Terms. Discuss something new that you learned while taking notes.

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