February 10, 2015 Homework: Complete Venn diagram comparing Solids and Liquids-create Unit title pg. EQ’s on my website. Do Now: Update TOC p.69 Solids, Liquids & Gases- Unit Title pg. pg. 70 Solids, Liquids, and Gases Complete pre- Self Check sheet- Honestly

Self-Check YES NO 1. I can describe how atoms move in a solid, liquid, and gas 2. I can describe the speed/energy of the atoms in a solid, liquid, and gas. 3. I can explain how the distance between atoms is related to the states of matter. 4. I can indicate whether or not each state of matter has a definite shape and volume 5. I can explain how the volume of a gas is changed by a change in pressure. 6. I can explain how the volume of a gas is changed by a change in temperature. Use this slide as a pre-test or pre-quiz to see what students already know. I like to have my students record their answers privately, then put them away. At the end of the lesson or unit the students take the quiz again and compare their post-unit answers to their pre-quiz answers. These “I Can” statements also give students a very clear visualization of what you expect them to know for the test. © 2013 S. Coates

What do you think? Which is easiest to hold in your hands– A small rock, 100ml of water, or The helium from a balloon? ---Why? -Write your answer on back of pg. 70

Solids, Liquids & Gases {Phases of Matter} Are defined by whether it has: A definite Volume A definite Shape https://www.youtube.com/watch?v=KCL8zqjXbME Interview video asking public what makes up each state of matter

Phases of Matter Solids: Particles are tightly packed together and DO NOT move past each other. They vibrate in place. The animation on this slide is meant to show students that the atoms in a SOLID object are moving, but cannot move past one another. © 2013 S. Coates

Phases of Matter Solids have a definite SHAPE Solids have a definite VOLUME Example—Marble Shape = Sphere Volume = can be found using water displacement © 2013 S. Coates

Phases of Matter Examples of Solids: Just a few examples of “Solids” the students may have used in the last 24 hours: ice, bicycle, school desk, road sign, school bus, clothing © 2013 S. Coates

Phases of Matter Liquids: Particles are still slightly packed together and they SLIDE past each other. The animation on this slide is meant to show students that the atoms in a liquid are relatively close together, but slide past one another. © 2013 S. Coates

Phases of Matter Liquids DO NOT have a definite SHAPE, they take the shape of their container. Liquids have a definite VOLUME Example—Orange Juice Shape = None, it takes the shape of the glass. Volume = can be found using a beaker or graduated cylinder. © 2013 S. Coates

Phases of Matter Examples of Liquids: Examples of liquids: milk, ocean, gasoline, melted chocolate, soda, lemonade © 2013 S. Coates

Phases of Matter Gases: Particles are not tightly packed together, and have so much energy they slip past each other quickly. The animation on this slide is meant to show students that the atoms in a GAS move quickly and can spread a further distance than the atoms in solids and liquids. © 2013 S. Coates

Phases of Matter Gases DO NOT have a definite SHAPE Gases DO NOT have a definite VOLUME Example—Smoke Shape = Not definite. Volume = Not definite. Gases are usually always expanding- Spreading apart -Taking up the available space © 2013 S. Coates

Phases of Matter Examples of Gases: Examples of gases: Helium, Atmosphere/Water Vapor, smoke, “pollution”, oxygen © 2013 S. Coates

Phases of Matter Plasma: Particles are moving so quickly it is hard to see what they are actually doing. This animation is meant to show students that PLASMA is the phase of matter that is the fastest moving and it is impossible to see exactly how the atoms are moving. © 2013 S. Coates

Phases of Matter Examples of Plasma on Earth: Plasma on Earth: lightning, fire © 2013 S. Coates

Phases of Matter Let’s summarize: Phase Motion of Particles Speed of Particles Solid Particles vibrate in place Slow Liquid Particles are close, but can slide past one another Medium Gas Particles are constantly expanding Fast Plasma Unknown Faster than we can see © 2013 S. Coates

Phases of Matter Phase Definite Shape? Definite Volume? YES YES NO YES Let’s summarize: Phase Definite Shape? Definite Volume? Solid Liquid Gas Plasma YES YES NO YES NO NO © 2013 S. Coates

Solids Liquids and Gases http://www.youtube.com/watch?v=3qAs1 Nt0Fjk Better video https://www.youtube.com/watch?v=bMbm QzV-Ezs Virtual school 2:42

Gases A gas DOES NOT have a definite shape or volume. As gas particles move, they spread apart, filling in the space available.

Gases Move Freely How does breathing demonstrate that gases move freely? Write Answer on page 45

Musical Molecules Each student represents a molecule! Form a circle around the room with your arms extended straight in front of you with your hands on the person’s shoulders in front of you. When the music stops, FREEZE and listen for directions!

Observe similarities and differences between a solid, liquid and gas.

Solids, Liquids & Gases! http://app.discoveryeducation.com/search #selItemsPerPage=20&intCurrentPage=0 &No=0&N=18342&Ne=18339&Ntt=gas& Ns=&Nr=&browseFilter=&indexVersion= &Ntk=All&Ntx=mode%252Bmatchallparti al http://www.youtube.com/watch?v=UJXDrh9ESCI Bill Nye- Phases http://www.middleschoolchemistry.com/multimedia/chapter1/lesson5#comparing_solids_liquids_and_gases

February 11, 2015 Homework: Answer Section 1 Assessment (T.B. pg. 47) questions 1B, 1C & 3B- **Work on Product project- due 2/25 Do Now: Agenda-Write H.W Take out Venn Diagram Update T.O.C: pg. 71- Solids & Liquids Venn Diag. pg. 72- Types of Solids Compare Venn Diagram w/partner (next to you)

Solids Vs. Liquids Using the Venn diagram Compare and contrast Solids and Liquids

Solids On the back of page 71: Write your definition of a solid (in your own words). A Solid is…. Provide 3 examples of a solid.

Phases of Matter Gases: Particles are not tightly packed together, and have so much energy they slip past each other quickly. The animation on this slide is meant to show students that the atoms in a GAS move quickly and can spread a further distance than the atoms in solids and liquids. © 2013 S. Coates

Phases of Matter Gases DO NOT have a definite SHAPE Gases DO NOT have a definite VOLUME Example—Smoke Shape = Not definite. Volume = Not definite. Gases are usually always expanding- Spreading apart -Taking up the available space © 2013 S. Coates

Phases of Matter Plasma: Particles are moving so quickly it is hard to see what they are actually doing. This animation is meant to show students that PLASMA is the phase of matter that is the fastest moving and it is impossible to see exactly how the atoms are moving. © 2013 S. Coates

Phases of Matter Examples of Plasma on Earth: Plasma on Earth: lightning, fire © 2013 S. Coates

Phases of Matter Let’s summarize: Phase Motion of Particles Speed of Particles Solid Particles vibrate in place Slow Liquid Particles are close, but can slide past one another Medium Gas Particles are constantly expanding Fast Plasma Unknown Faster than we can see https://www.youtube.com/watch?v=bMbmQzV-Ezs © 2013 S. Coates

Phases of Matter Phase Definite Shape? Definite Volume? YES YES NO YES Let’s summarize: Phase Definite Shape? Definite Volume? Solid Liquid Gas Plasma YES YES NO YES NO NO © 2013 S. Coates

Vote for Matter! □ Solid □ Liquid □ Gas Choose only 1 candidate (state of matter) and tell me why you voted for that candidate. -What was it about the state of matter that impressed you the most? □ Solid □ Liquid □ Gas

Crystalline Solids Particles form in a regular repeating pattern, forming crystals. Melt at specific temperatures (certain melting points).

Amorphous Solids Particles are NOT arranged in a regular pattern- do not melt at specific temp. Instead become gradually softer or change into another substance EX: Chocolate/Cheeses EX: Glass EX: Candle Wax http://www.youtube.com/watch?v=HAPc6JH85pM

If I cut each of these solids in half….. 1 2

Compare & Share Observe and compare shapes of the fragments of the two broken solids with magnify glass- Which have more rounded / squared edges ? Which are more jagged edges? Which felt like it was getting softer the more you touched it? Draw a picture/ write observations on pg. 72

Apply your knowledge 1) What kind of solid is the “snow”? Crystalline What kind of solid if the Playdoh? Amorphous 2) Which would you expect to melt at a specific temperature? The snow 3) How will the Playdoh melt? It will not melt all at once- gradually become softer as the temperature rises

February 12, 2015 Homework: Complete Section assessment questions 2B- ***Work on Product Project*** Do Now: Update TOC :p. 73 Section 1 Questions p. 74- What is Viscosity? Take out(last nights homework) Pair and share Get Lab journal from bin-grab a partners.

Section 1 Assessment Questions 1B: Crystalline Solids form a regular repeating pattern and melt at a specific temperature; amorphous solid particles are not arranged in a regular pattern and melt over a range of temperatures 1C: Glass is an amorphous solid. Because glass does not have definite melting point, it becomes softer and softer as it is heated- this is why heated glass is soft enough to bend. http://www.youtube.com/watch?v=HAPc6JH85pM 3B: a gas does not have a definite volume or a definite shape because its particles spread apart and move freely in all directions., restricted only by the walls of its container.

What is Viscosity? Viscosity is a property of a liquid that describes a liquids resistance to flowing. Depends on the size and shape of the particles and the attraction between the particles. High Viscosity flows SLOWLY Low Viscosity flows QUICKLY

As thick as… Open up textbook to pg. 46- Read/ Follow the procedure to As Thick as Honey Lab Activity In your Journal on pg. 12- Title your lab- Viscosity Race Purpose: Procedure: Write- Used procedure on pg. 46 Observations- Write your observations on p.12 (Draw diagrams)- Answer Conclusion questions on page 12.

Viscosity Race!!! Slowest Flow wins! Which fluid is up to the challenge??? Slowest Flow wins!

Viscosity Go back to your seat and Answer these question in your notes after observations: 1) Which Fluid has a greater viscosity? 2) What evidence leads you to this conclusion? - You Can draw a diagram if you want to help explain your answer