What is Chemistry? The study of matter Changes in matter Experiments Types of matter Properties of matter Learning about atoms and molecules.

Slides:



Advertisements
Similar presentations
Warm-Up Please sit down quickly and quietly.
Advertisements

Elements and their Combinations
Properties of Matter: SC.5.P.8.3
Matter and Change Ch. 2.
Methods of Purification
Lesson 4: Mixtures Trail mix is a mixture. A mixture is a combination of two or more substances that do NOT form new substances. There is no chemical.
Classroom Chemistry Grade 5 Science Mr. Larson. Student Learner Expectations.
SEPARATION OF SUBSTANCES FROM MIXTURES
MATTER SOL 5.4.
Substances, Compounds & Mixtures How everything is put together.
Chemistry. Describing Matter  Matter – anything that has a mass and takes up space. Air, plastic, metal wood, glass, paper, and water are all matter.
Separating Mixtures using Physical Properties How can you separate out many kinds of matter?
Heterogeneous Homogenous Mixtures Solutions
Chapter Two Part 1 Classifying Matter Properties of Matter.
Chemical Reactions 10/20/14. What are Physical Properties? Physical properties can be observed and measured without changing the identity of the substance.
1.How could you measure the volume of a marble with a graduated cylinder? A. Drop the marble in a cylinder with water and read the scale B. Measure the.
Chapter 15 – Classification of Matter
Unit 2- Structure & Transformation of Matter
Matter. Anything that has mass and takes up space.
Physical Properties Does it Matter?.
Strand 5 Knows that materials made by chemically combining two or more substances may have properties that differ from the original materials. GLEs Knows.
Mixtures Spring 2011.
Beaker Breaker!! 1.)When two atoms are touching based on the activity yesterday that means it is considered a___________ 2.)What do the small numbers (subscripts)
STRUCTURE AND PHASES OF MATTER UNIT REVIEW
The Properties Of Matter Matter and Changes in Matter.
Unit: Reversible and Irreversible Changes Grade V Science Ms. Khaula Rizwan Mixtures & Solutions.
Chapter 2 Properties of Matter
Mixtures and Solutions
1. What is matter? 2. What are the 3 states of matter? 3. Give one example each of an element, a compound, and a mixture. Actual SISS iron21.05% sawdust3.70%
Chapter Two Part 1 Properties of Matter Classifying Matter.
Chapter 19: Separating Mixtures
Hosted by Max Mixtures & Solutions Separation of Mixtures Physical & Chemical Change Acids & Bases
Matter Unit Assessment Review Oct. 5, #1. 10 physical properties 1. size Density Mass Volume Physical state Magnetism Temperature Color shape.
 Matter- Anything that has mass and takes up space  Substance – A single kind of matter that is pure, has a specific set of properties  Examples: Table.
Jeopardy Properties Of Matter States of Matter/ Physical & Chem- ical Changes Mixtures and Solutions Separating Mixtures Wild Card Q $100 Q $200 Q $300.
Physical vs. Chemical Changes. Goal: How do you tell the difference between chemical and physical changes?
Elements, Compounds, and Mixtures
Matter Key Questions: What’s the difference between an element, compound, and mixture? What’s the difference between an element, compound, and mixture?
Unit 2. Unit 2 - Matter Classify a sample as homogeneous or heterogeneous Classify a sample of matter as a pure substance or mixture based on the number.
Separating mixtures Mixtures can be easily separated. There are several different methods depending on what is to be separated. Over the next few pages.
The Properties of Matter Matter can be classified based on its properties. Matter can be classified based on its properties. Some of the properties of.
Jeopardy $100 Science Tools Matter Mixtures Solutions Relative Density Vocabulary $200 $300 $400 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 $500.
What is Matter? Turn and Talk
Journal Question If you have ever seen a photograph of Earth from space, you know that much of the planet is covered by water. Water makes life on Earth.
Class Presentation Mixtures & Solutions Shannon Science 8.
Matter Matter Unit Review for District Assessment By: Amaya N. Dixon Date:
Atoms, Molecules, Pure Substances, & Mixtures CRCT Prep Part I.
Unit 3 Matter & Energy. Characteristics of  Solids:  Matter that holds own _______________  Atoms are ___________________  Rigid structure  Minimal.
Chapter 12.
Chemistry Unit Project
Matter Matter Video Matter Video Lesson Goals and Objectives You will learn about the three states of matter You will learn what physical changes are.
NEXT Matter Vocab Mixtues Solutions Vocab Properties of Matter Mixtures & Solutions Phys. & Chem. Changes
Mixtures and Solutions. MATTER is solid liquid gas melts to freezes to evaporates to condenses to anything that has mass and takes up space can be.
Classroom Chemistry Grade 5 Science Mr. Carter. Student Learner Expectations ● I can recognize and identify examples of mixtures. ● I can apply and evaluate.
TEKS 5.5C The student knows that matter has measurable physical properties and those properties determine how matter is classified, changed and used. The.
1-2 Organizing Matter GO 1 Investigate materials, and describe them in terms of their physical and chemical properties.
Mixtures and Separating From Year 9 Chemistry SLO’s 6) Understand that substances are pure or mixtures. 9) Use the term mixture and illustrate with everyday.
CHAPTER 17 COMPOSITION AND PROPERTIES OF MATTER. ATOMS 1. Most basic unit of matter 2. Cannot be broken down into smaller units 3. Building blocks of.
Properties of Matter GPS 3.
Atoms & Molecules Matter Pure SubstancesMixtures & Solutions CompoundsElementsHeterogeneousHomogeneous.
Chapter 12 Mixtures & Solutions Matter cannot be created or destroyed Before we get into this lesson it is important to understand that matter is neither.
Chem-Phys, Chapter 15 Page 1 Chapter 15 – Classification of Matter.
Mixtures & Solutions Shannon Science 8
Classification of Matter
Jeopardy Matter Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200
CHEMICAL AND PHYSICAL CHANGES REVIEW
Physical Science Mixtures.
Grade 5 Science Miss Scarpelli
Heterogeneous Homogenous Mixtures Solutions
TEKS 5.5C The student knows that matter has physical properties.
Presentation transcript:

What is Chemistry? The study of matter Changes in matter Experiments Types of matter Properties of matter Learning about atoms and molecules

Experimental Procedure General Pattern.. Title Problem: The question you are trying to answer answer Prediction: An educated guess Materials needed: detailed list of everything needed everything needed Procedure: An ordered list of how to do the lab Observations: recorded information from the lab (drawings, tables, charts) Conclusion: What happened in the lab. Making a Crystal Problem: how do you make a crystal in the lab? Prediction: Over saturating a solution and allow it to cool slowly Materials needed: 1. Borax flakes 2. HOT water 2. HOT water 3. Beaker/cup 3. Beaker/cup 4. Tablespoon 4. Tablespoon 5. Pipe cleaner 5. Pipe cleaner 6. Pencil 6. Pencil 7. String 7. String 8. Kettle 8. Kettle Procedure: 1. Get all materials out. 2. Boil 1 cup of water. 2. Boil 1 cup of water. 3. Transfer hot water into a beaker/cup. 3. Transfer hot water into a beaker/cup. 4. Add 2 heaping tablespoons of Borax to the hot water. 5. Stir the Borax in to dissolve. 6. Continue to add and stir in Borax until no more will dissolve. (This is the saturated solution.) 7. Attach a string tightly to the centre of the pencil. 8. On the other end of the string attach the pipe cleaner shaped into what ever you want your crystal to look like. 8. On the other end of the string attach the pipe cleaner shaped into what ever you want your crystal to look like. 9. Place the pencil across the top of the beaker so that the pipe cleaner is completely covered by the saturated solution. It should not touch the bottom. (Wrap the string around the pencil to adjust the height of the pipe cleaner if necessary.) 9. Place the pencil across the top of the beaker so that the pipe cleaner is completely covered by the saturated solution. It should not touch the bottom. (Wrap the string around the pencil to adjust the height of the pipe cleaner if necessary.) 10. Leave the solution for 24 hours so that the crystals can form on the pipe cleaner. Observation: Etc.

Science Equipment MagnetsFlasks and Cylinders Beakers Distillation equipment Flask and Petri dishes Microscope

Classifying Matter Types of Matter Solids Liquids Gases

Atoms and Molecules  Atoms are the smallest particles of matter  All things are made of atoms  Molecules are made of two or more atoms  Eg. Water, carbon dioxide, alcohol

Solids They are hard Their atoms are very closely packed They have a fixed shape Examples: rocks, wood, ice, paper, and plastic

Liquids They take the shape of the container they are in. They take the shape of the container they are in. They flow They flow The atoms aren’t as packed as in solids The atoms aren’t as packed as in solids Examples: water, alcohol, Examples: water, alcohol, vinegar, and pop vinegar, and pop

Gases Many are invisible Many are invisible The atoms are very spread out The atoms are very spread out They take the shape of the container they are in They take the shape of the container they are in Air is made of gases such as: nitrogen, CO 2, oxygen, and water vapor Air is made of gases such as: nitrogen, CO 2, oxygen, and water vapor

Mixtures Made of two or more different types of particles. It may be a solid, liquid or a gas. Examples: Gravel (solid), Kool-Aid (liquid), Air (gas) Mmmmmmm ice cream!

Solutions They are mixtures made of a solute(s) and a solvent. The parts are not visible Examples: sugar water, salt water, perfume, Kool-Aid, and tap water

Suspensions  Mixtures made of a solid and a liquid  If you leave it long enough the solid will settle out.  Examples: water and flour, any kind of medicine you have to shake, and a mud puddle Mud puddle suspension

Separating Mixtures Solid from solid All the techniques you could use are: All the techniques you could use are: Wind: when you use wind the heavier substance will fall and the lighter one will blow away. Water then skim: (Example=salt and pepper) The water will dissolve the salt and the pepper will float then you could skim off the pepper. Sieve: the littler substance will go though and the bigger one will stay on the sieve. Magnets: materials such as iron filings in sugar can be separated by putting the magnet into the mixture. Bringing the magnet back up will get some of the filings out.

Separating Mixtures Solid from Liquid The techniques you could use are: The techniques you could use are: Decanting: you first allow the solid to settle then you pour off the top layer of liquid. Example: sand and water. Filtering: filter paper will hold back the solid and will allow the liquid to go through the filter. Evaporation: The liquid will evaporate leaving the solid in the beaker.

Separating Mixtures Liquid from Liquid The techniques you could use are: The techniques you could use are: Distilling: the liquids will have different boiling points and if you heat the mixture one will boil off at a time. The vapors can be cooled and turned back into a liquid. Decanting: Use this technique if they are different densities (one floating on the other). Carefully pour off or use an eyedropper to remove the top layer.

Water Properties Boiling Point = 100 o C Boiling Point = 100 o C Freezing Point = 0 o C Freezing Point = 0 o C Ice is less dense than water (and will float) Ice is less dense than water (and will float) Water has high surface tension. This means the water molecules like to stick together and when that happens it makes it hard to break through the top layer. Some bugs are able to walk on water. Water has high surface tension. This means the water molecules like to stick together and when that happens it makes it hard to break through the top layer. Some bugs are able to walk on water.

Carbon dioxide Carbon dioxide is a gas Carbon dioxide will put out a fire You can make carbon dioxide by reacting vinegar and baking soda. We breathe out carbon dioxide Trees breathe in carbon dioxide

Reversible vs. Irreversible Changes  A reversible change is where you can change what you just did back to what was before.  An irreversible change is where you can’t change the material you just made back to what is was before.  Examples: crystals are a reversible change and baking soda and vinegar is an irreversible change.

Evidence for a Chemical Change The ways you can tell that a chemical change has happened are there has been: Color change Precipitate Bubbles formed Energy release

Acids, Neutrals and Bases On a “pH” scale an acid is “pH=0” a neutral is “pH=7” and a base is “pH=14” Examples of neutrals are water and milk Examples of acids are vinegar, coke and lemon juice Example of a base is soapy water.

Bibliography e008.jpgwww.cofc.edu/.../111LectWeek1_files/imag e008.jpg ments/graphics_representations.htmlhttp://cmm.cit.nih.gov/modeling/guide_docu ments/graphics_representations.html 88http:// /ohyea3.GIFhttp:// 2070/ohyea3.GIF