Physical & chemical changes

Slides:

Advertisements

Similar presentations

Learning Outcomes Through experimentation, I can identify indicators of chemical reactions having occurred. I can identify the difference between a chemical.

Advertisements

Chemical Reactions Mini Experiments. Before we begin:  What are some safety rules when doing experiments?  What should you do if you burn yourself when.

Chemical & Physical Change

Experiments What are some safety rules when doing experiments? What should you do if you burn yourself when using a bunsen burner? Why do we wear safety.

Section 3.4—Changes in Matter

 SNC1D Findlay.  Cut a hold in a standard sized piece of paper that is large enough for you to fit your body through.

1.7 Physical & Chemical Changes Pages 28 – 30 of the text.

1/3/2012 Chemical and physical changes Write the date and title in your books and unscramble the learning objective. LO: ot wonk eht ecnereffid neewteb.

 The part of atoms that are affected in chemical reactions are electrons.  What’s happening?! Atoms of a same or different element are rearranging themselves.

What's Hot? Year 10 Science 2012 Section 1: Energy in Chemical reactions.

Changes in materials Irreversible changes, like burning, cannot be undone. E.g. baking a cake- you cannot get the eggs back once they are baked into the.

Physical and Chemical Changes. Let’s Review: In A Physical Change.... A substance is changed physically, but not chemically. It is still the same substance.

What is matter? Everything is matter! Anything that takes up space is matter. Your desk, paper, pencil, and even the air you breath are matter.

Objective: By the end of this class period, I will be able to … 1.identify a property as physical or chemical. 2.identify a property as intensive or extensive.

Energy changes in reactions

Chapter 3 Chemical Reactions.

Physical and Chemical Changes Notes

Changes in Matter.

Physical and Chemical Changes

Physical and Chemical Changes

PHYSICAL AND CHEMICAL CHANGES.

Physical vs. Chemical Changes

Physical and Chemical Changes

Physical and Chemical Changes

Physical and Chemical Changes

Types of Reactions Pre-Lab

Physical and Chemical Changes

What is a reaction? By the end of this lesson, you will be able to…

JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY JEOPARODY.

Unit 6D: Reversible and irreversible changes

Jeopardy Game Matter (SOL 5.4).

Metals and Acids Lesson 2.

PHYSICAL CHANGE vs CHEMICAL CHANGE

Bottle containing ammonium nitrate

CHEMICAL AND PHYSICAL CHANGES REVIEW

Activity #30 Physical and Chemical Changes read p

Equipment Slide 2 printed per student

Topic: Matter Aim: Describe the different properties and changes of matter. Do Now: Take out the mass and Volume HW Take out your Properties Reading notes.

Physical and Chemical Changes

Chapter 3: Matter – Properties and Change

Physical and Chemical Changes

Chemical and Physical Changes

Properties and or Changes

Chemical Changes Lesson 1 What is a chemical reaction?

Physical and chemical change

Physical Properties (Chapter 3-Section 2).

Observable Characteristics of Chemical Changes

Physical and chemical changes

States of Water by Leslie Wallace

Chapter 2 Notes Chemical and Physical Properties and Changes

Vinegar has a pungent odor. Carbon cannot be decomposed.

Links Keywords C1 Particles C1.1 The Particle Model 

7F Bubbles, bangs and burning. 07/01/2015

Physical and Chemical Changes

Metals and water.

What happens when an acid reacts with a metal carbonate?

Physical and Chemical Changes

Lesson Starter. Q: Four groups measured the height of their table.

Chemical or Physical Change?

Physical and Chemical Change

What do our copper sulfate crystals look like?

Physical Properties (Chapter 3-Section 2).

Chemical Properties and Changes

Physical and Chemical Changes

Physical and Chemical Properties

Physical and Chemical Changes

Physical and Chemical Change

Activity #27 Physical and Chemical Changes Watch the brainpop and read the class set and write down information about physical and chemical changes in.

Jeopardy Game Matter (SOL 5.4).

Changes in Matter.

Presentation transcript:

Physical & chemical changes Objective To know the difference between a chemical and physical change. What names are given to the 4 changes of state? Solid to liquid Liquid to solid Liquid to gas Gas to liquid Melting Freezing Evaporating Condensing

Changes of State - Physical changes Each change of state is given a different name. Gas Boiling Condensing Melting Solid Liquid Freezing

Reversible or irreversible? Can you get back what you started with? (Reversible) Or is it changed forever? (Irreversible) Paired talking I think...because... I agree because... I disagree because... Also... EXTENSION- How do you know if a chemical reaction has happened?

Signs of a chemical change …or colder Bubbles or fizzing gets warmer… flames or sparks Smells (nice or nasty!) Noises (from loud bangs to quiet fizzing)

Chemical changes Chemical changes (reactions) are usually irreversible. What do you think this means? Example: Frying an egg

Observing – chemical and physical changes Write down observations and whether you think these are physical/chemical changes and reversible or not: Half a test tube Hydrochloric acid + magnesium strip 1cm Sodium hydroxide + 1cm copper sulfate 1cm Hydrochloric acid + 1 cm sodium hydroxide + Universal indicator Salt + water Melting ice cube

Experiment Reversible or irreversible? Physical or chemical change? Ice cube melting Kettle boiling Bunsen burner on Burning toast Dissolving salt in water Boiled egg Magnesium dropped in acid Burning splint Dissolving tablets in water Baked Cake

Physical or chemical change? Use mini whiteboards