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Physical and Chemical Changes Unit IIPart 2
Concept of Change Change: the act of altering a substance
Physical Change Physical change: a change that occurs that does NOT change the substance Usually Reversible
Examples of Physical Change Melting ice (change in state) Freezing Kool-Aid Tearing paper Breaking Glass
Chemical Changes Chemical change: a change that occurs causing the substance to change Is NOT reversible A chemical change is called a chemical reaction
Examples of Chemical Changes Burning Digesting food Reacting with other substances
Chemical Changes Contd Signs of a chemical change: Light Heat Gas Colour change* Formation of a precipitate (solid made from mixing 2 liquids)
Is it Physical or Chemical? ChangePhysicalChemical Melting cheese Burning wood Milk souring Wadding up paper Bicycle rusting
References Investigating Science Pearson 9 Dercho
Physical and Chemical Changes. What is a Physical Change? A physical change alters the form of a substance, but does not change it to another substance.
Physical Change & Chemical Change. Physical Change A change that affects 1 or more physical properties. Examples – a melting popsicle, cutting wood, dissolving.
Exploring Matter Unit Review. What is Matter? Matter is anything that takes up space and has weight. Matter has three forms. Matter can be a solid, a.
What is Matter? Properties of Matter. Matter is… everything that has mass and volume made up of atoms (tiny particles)
Melting and Dissolving FOSS Kit: Chemical Interactions 8th Grade.
Chapter #10. The process of liquid water changing to a gas is called a.Freezing b.Precipitation c.Melting d.Vaporization.
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Warm Up 9/19 1. Suppose you have a sample of an unknown mineral. Its mass is 50 g and it has a volume of 100 cm3. What is its density? 2. Copper has a.
Physical or Chemical Properties. Matter Matter is anything that takes up space and has mass.
Physical or Chemical Properties. Matter Matter is anything that takes up space and has mass. Workbook – Read pages
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Slide 1 of 19 Chemistry. © Copyright Pearson Prentice Hall Slide 2 of 19 Chemical Reactions Iron is abundant, easy to shape when heated, and relatively.
Learning Outcomes Through experimentation, I can identify indicators of chemical reactions having occurred. I can identify the difference between a chemical.
Terms on phase changes: ___1. Boiling point ___1. Boiling point ___2. Melting point ___2. Melting point ___3. Vaporization point ___3. Vaporization point.
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt 3 States of Matter Solid, Liquid.
Physical and Chemical Changes. Properties of Matter All pure substances have characteristic properties Properties are used to distinguish between substances.
Chemical Properties & Physical and Chemical Changes.
Physical and Chemical Properties of Matter Objective: Students will classify matter by physical and chemical properties and identify changes in matter.
Warm-Up Please sit down quickly and quietly. Please copy down the schedule in your Raven Book. Next, answer this Warm-Up Question on your yellow sheet:
Properties of Matter By Mrs. Porter Talley Middle School Wilmington Delaware.
Physical vs Chemical. Read pp in your textbook Define each of the following: Density______________________ Ductility ______________________ Solubility.
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Bellringer – Week 3 1. Describe the pencil or pen you are using. Be very specific. If all of the pencils and pens in the classroom were mixed together.
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Changes in Matter _________ Changes – identity of substance does _____ change Examples: _____________ _____________ __________ __________ _________ _________.
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