February 10, 2015Homework:

◦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

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.

Self-Check

© 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

Are defined by whether it has:◦A definite Volume◦A definite Shape

{Phases of Matter}

https://www.youtube.com/watch?v=KCL8zqjXbMEInterview 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.

© 2013 S. Coates

Phases of Matter• Solids have a definite SHAPE• Solids have a definite VOLUME

© 2013 S. Coates

Example—MarbleShape = SphereVolume = can be found using water displacement

Phases of Matter• Examples of Solids:

© 2013 S. Coates

Phases of Matter• Liquids: Particles are still slightly packed

together and they SLIDE past each other.

© 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

© 2013 S. Coates

Example—Orange JuiceShape = None, it takes the shape of the glass.Volume = can be found using a beaker or graduated cylinder.

Phases of Matter• Examples of Liquids:

© 2013 S. Coates

Phases of Matter• Gases: Particles are not tightly packed

together, and have so much energy they slip past each other quickly.

© 2013 S. Coates

Phases of Matter• Gases DO NOT have a definite SHAPE• Gases DO NOT have a definite VOLUME

© 2013 S. Coates

Example—SmokeShape = Not definite.Volume = Not definite. Gases are usually always expanding- Spreading apart-Taking up the available space

Phases of Matter• Examples of Gases:

© 2013 S. Coates

Phases of Matter• Plasma: Particles are moving so quickly it is

hard to see what they are actually doing.

© 2013 S. Coates

Phases of Matter• Examples of Plasma on Earth:

© 2013 S. Coates

© 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

Phases of Matter• Let’s summarize:

© 2013 S. Coates

Phase Definite Shape?

Definite Volume?

Solid

Liquid

Gas

Plasma

YES YES

YESNO

NO NO

Solids Liquids and Gaseshttp://www.youtube.com/watch?v

=3qAs1Nt0Fjk

Better videohttps://

www.youtube.com/watch?v=bMbmQzV-Ezs

Virtual school 2:42

GasesA gas DOES NOT have a definite shape

or volume.As gas particles move, they spread apart, filling in the space available.

Observe similarities and differences between a

solid, liquid and gas.

Solids, Liquids & Gases!http://app.discoveryeducation.co

m/search#selItemsPerPage=20&intCurrentPage=0&No=0&N=18342&Ne=18339&Ntt=gas&Ns=&Nr=&browseFilter=&indexVersion=&Ntk=All&Ntx=mode%252Bmatchallpartial

http://www.middleschoolchemistry.com/multimedia/chapter1/lesson5#comparing_solids_liquids_and_gases

http://www.youtube.com/watch?v=UJXDrh9ESCIBill Nye- Phases

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 SolidsCompare Venn Diagram w/partner (next to

you)

Solids Vs. Liquids

Using the Venn diagram Compare and contrast Solids and

Liquids

Phases of Matter• Gases: Particles are not tightly packed

together, and have so much energy they slip past each other quickly.

© 2013 S. Coates

Phases of Matter• Gases DO NOT have a definite SHAPE• Gases DO NOT have a definite VOLUME

© 2013 S. Coates

Example—SmokeShape = Not definite.Volume = Not definite. Gases are usually always expanding- Spreading apart-Taking up the available space

Phases of Matter• Plasma: Particles are moving so quickly it is

hard to see what they are actually doing.

© 2013 S. Coates

Phases of Matter• Examples of Plasma on Earth:

© 2013 S. Coates

© 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

Phases of Matter• Let’s summarize:

© 2013 S. Coates

Phase Definite Shape?

Definite Volume?

Solid

Liquid

Gas

Plasma

YES YES

YESNO

NO NO

Crystalline Solids

• Particles form in a regular repeating pattern, forming crystals.

• Melt at specific temperatures (certain melting points).

Amorphous SolidsParticles are NOT arranged in a

regular pattern- do not melt at specific temp.◦Instead become gradually softer or change into another substanceEX: Candle Wax EX: Glass

EX: Chocolate/Cheeses

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 knowledge1) What kind of solid is the “snow”? Crystalline What kind of solid if the Playdoh? Amorphous2) Which would you expect to melt at a specific temperature? The snow3) How will the Playdoh melt?

It will not melt all at once- gradually become softer as the temperature rises

February 12, 2015Homework: 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 Questions1B: 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 SLOWLYLow 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!!!Which fluid is up to the challenge???

Slowest Flow wins!

ViscosityGo 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