WARM UP: Update your Table of Contents Write your homework – leave it out to be stamped Complete the Helpful Hints Cheat Sheet #2 DateSession # ActivityPage # 12/12 5 Helpful Hints Cheat Sheet #2 8 Physical Properties/Physical Changes Foldable 9

Quiz Time When you complete your quiz Bring it to me! Begin your Physical Properties foldable Cut out the definitions of the Physical Properties. See if you can match the correct definition with the correct property!

WARM UP: Update your Table of Contents Write your homework – leave it out to be stamped Put your RAFT assignment in the basket Get your Physical Properties/Physical Changes Foldable out DateSession # ActivityPage # 12/14 6 Chemical Change Mini Labs 10

Chemistry Tutoring Tuesday mornings from 8:15 – 8:45

FRIENDLY REMINDERS!! **Anyone sensitive to strong odors? Let me know if any of the odors are bothering you at any point during the labs today! **Absolutely none of the lab chemicals should come in contact with your mouth, eyes, or be breathed deeply!!

PHYSICAL PROPERTY Any characteristic of a substance that can be observed without changing the identity of the substance. Every substance has its own set of physical properties.

Physical Properties Used to observe and describe matter or elements. Can be observed or measured without changing the structure of the element. Use your 5 Senses… appearance, texture, color, odor Scientific Examples… melting point, boiling point, density, solubility, malleability

DENSITY Mass per volume of a material, or how much stuff is packed together in an area.

SOLUBILITY A measure of how much of a substance dissolves in a given amount of another substance.

BOILING POINT The temperature at which a liquid changes to a gas.

MELTING POINT The temperature at which a solid changes to a liquid.

SPECIFIC HEAT The amount of heat or energy needed to raise 1 gram of a substance by 1 degree Celsius (1  C).

MAGNETISM A force of attraction or repulsion that exists between like and unlike poles.

MALLEABILITY The ability to be hammered, shaped, or rolled into thing sheets. Most metals are malleable.

ELECTRICAL CONDUCTIVTY The ability of a material or substance that allows electrons to flow through it easily. Most metals are good conductors of electricity.

Physical Change A physical change takes place without the element’s chemical structure changing. EXAMPLES: Dissolving Phase change (solid, liquid, gas) Changing shape

Chemical Properties Describe a substance’s ability to form new substances Examples: Flammability Ability to rust Chemical Reactivity

Chemical Change Production of a new substance Cannot be reversed

Hints that a Chemical Change/Reaction has Occurred: Color changes - color appears or disappears Temperature changes Gas/gas bubbles produced Fire/explosion Precipitate is formed – a solid forms out of 2 liquids

Every element on the Periodic Table has it’s own set of physical & chemical properties, that is what makes their “personalities” unique!!!

Labs to Examine Chemical Changes

Mini Lab 1: Make your prediction Teacher Demo…watch closely! Write your observations

Group Roles Leader: Runs directions for each lab, keeps group on task Materials: collects & returns materials; assists in clean up/material disposal Clean Up: assists in collection; cleans up materials/disposal Data: data table is properly completed by all group members, make sure observations are detailed You can rotate roles after each investigation

Mini Lab 2: Send your materials person up to pick up a ziploc bag with baking soda in it for each group member Use the graduated cylinder to measure about 20 mL of vinegar Add the 20 mL of vinegar to the baking soda in the bag and SEAL THE BAG IMMEDIATELY Rinse your GRADUATED CYLINDER and throw away the ziplock bag

Mini Lab 3: Send your materials person up to get a test tube for each group member Use the eyedroppers to add an eyedropper full of the cabbage juice (purple liquid) to each test tube Observe and record any changes that occur Rinse your test tube and return it to the test tube rack. Clean up any spills at your group!

Mini Lab 4: Send your materials person to the sink to get 5 ml of water in your graduated cylinder Put the water into your film canister Break on Alka-Seltzer tablet in half Put the Alka-Seltzer tablet into the film canister and snap the lid TIGHTLY QUICKLY put the canister on the ground CAP SIDE DOWN AND STEP BACK!

WARM UP: Update your Table of Contents – nothing to paste in for this session Write your homework – leave it out to be stamped Turn your Political Cartoon assignment in Make sure you turn your “Mythbusters” quiz in!!! DateSession # ActivityPage # 12/18 7 Mythbusters Video Quiz (paste into page 11 after it is returned with a grade) 11

WARM UP: Update your Table of Contents Write your homework – leave it out to be stamped Get an Expo Marker for a desktop quiz! DateSession # ActivityPage # 1/3 8 Mythbusters Video Quiz (paste into page 11 after it is returned with a grade – from last time) 11 Chemistry Review Relay Packet 12

Physical or Chemical? Explain how you know the difference between a physical and chemical change?

Desktop Quiz Part 1 – Physical or Chemical? Number your desk 1-10 You must get at least 9 correct to get a ticket

Physical or Chemical? Ice Melting…

Physical or Chemical? Chopping Wood…

Physical or Chemical? Mixing salt into water…

Physical or Chemical? Breaking Glass…

Physical or Chemical? Burning Wood…

Physical or Chemical? Melting Gold…

Physical or Chemical? Digesting an apple…

Physical or Chemical? Boiling Water…

Physical or Chemical? Frying an egg…

Physical or Chemical? Rusting bicycle…

Desktop Quiz Part 2 – Which Property? Number your desk 1-10 You must get at least 8 correct to get a ticket

Which Property? The temperature at which a liquid changes to a gas.

Which Property? Mass per volume of a material, or how much stuff is packed together in an area.

Which Property? The ability to be hammered, shaped, or rolled into thin sheets. Most metals have this quality.

Which Property? The ability to start on fire or to burn.

Which Property? The amount of heat or energy needed to raise 1 gram of a substance by 1 degree Celsius (1  C).

Which Property? A measure of how much of a substance dissolves in a given amount of another substance.

Which Property? The temperature at which a solid changes to a liquid.

Which Property? A force of attraction or repulsion that exists between like and unlike poles.

Which Property? The ability of a material or substance that allows electrons to flow through it easily. Most metals are good conductors of electricity.

Which Property? Color changes, production of a gas, change in temperature, fire/explosion occurs or a precipitate forms are all evidence of…

Fill in the video guide for a quiz grade!!

Instant Gratification Review You will all start on the same review page and work your way through them (total of 5) to create a review packet The first person that completes the first page with 100% becomes my assistant As you complete a page you must come up and have it checked by myself or my assistant

The Catch… Once you get 2 wrong or less per page, you can either chose to receive a ticket and take your chances in the drawing for homework passes or candy OR chose instant gratification of a piece of candy Take the next page and repeat the process You may use your notes and the book, AND you can make corrections and resubmit the same page FOR CANDY ONLY, BUT YOU MAY NOT WORK WITH OTHER PEOPLE!

Do You Need Help? On the back of each page make a list of concepts you may need help with…BE SURE TO ASK ME OR COME TO TUTORING ON TUESDAY MORNING!! DRAWING FOR TICKETS…

Physical & Chemical Changes of Matter