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• 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• 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
© 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.
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)
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
© 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
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.
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