New Six Weeks
New Approach
#1 ] Please be ready for class when the bell rings
New Six Weeks
• Lessons will be more concise/coherent
– Posted online daily with date/objective ( or topic )
– I will label Bellwork, Notes, etc
• Late penalty of 2 points per day for assignments
– Days we do not meet COUNT!!
• Makeup work when absent
– Have 5 days ( days we do not meet count ) for classwork
and labs
– Have 3 days for quizzes and tests
New Six Weeks
• Will not check notebooks any more
• Assign few homework problems each class
– Online venue still a possibility
– Will discuss the following class period
– May have time at the end of class ( USE IT!! )
• Will have open notes quizzes ( 1-2 times per week )
Need to create Variety of Groups
• I will create several different types of groups
with varying numbers
– 2 ( Partners )
– 3 ( Study Groups )
– 4-5 (Lab Groups )
• Based on strengths/weaknesses of students
• Based on time/lesson
09/24/12 - Bellwork
• Here is a list of common phase changes
• Label whether they absorb or release energy
– That is, when they occur
•
•
•
•
Fog Formation
Dew Forming on Grass
The Dew Drying when Sun comes out
Ice or Snow we might see this winter
09/24/12 - Bellwork
• Here is a list of common phase changes
• Label whether they absorb or release energy
– That is, when they occur
•
•
•
•
Fog Formation - release
Dew Forming on Grass - release
The Dew Drying when Sun comes out - absorb
Ice or Snow we might see this winter - release
09/24/12 - Bellwork
• Here is a list of common phase changes
• Label whether they absorb or release energy
– That is, when they occur
•
•
•
•
Fog Formation – release ( condensation )
Dew Forming on Grass – release ( same )
The Dew Drying when Sun comes out – absorb (?)
Ice or Snow we might see this winter – release (?)
9/26/12 - Bellwork
• When you change liquid water to water vapor
( or steam ) do you add or remove heat?
• How is Energy Conserved?
9/26/12 - Bellwork
• When you change liquid water to water vapor
( or steam ) do you add or remove heat?
• How is Energy Conserved?
• Electricity is used ( energy is lost ) and water
gains energy
• ( energy lost is same amount of energy
gained by water )
Study Groups
• Go to your station – take notebook/paper!!
• Someone login to labtop
• Search for “PhET” – choose top hit ( goto website )
• Search for the “States of Matter” simulation
– Not the “basic” link
Lab Activity
• Choose water as your material
• Choose the solid state
• Question – what kind of pattern do you see?
• Change the state to liquid
• Question – How does the pattern change?
Lab Activity
• Add heat ( use setting at bottom )
– What Happens to Particles/State?
• Change the state to gas
• Question – How does the pattern change?
• For each state, how did the motion of the
particles change for each transitition?
Challenge Questions
• Why might full containers of water explode or
burst when put in the freezer?
• Why do Ice Cubes FLOAT in liquid water?
Activity ( Outside? )
• We will go outside and observe around campus
• In your notes, write down 8 objects you see
• Label any chemical/physical properties
• Label any chemical/physical changes
• Label 2 of the Physical changes by name
– Also label whether energy is absorbed or released
Here’s What to Start With
Object
tree
Phys/Chem
Property?
Brown /
Flammable
Phys/Chem
Change?
State-Change
Leaves
changing?
Moisture
evaporating?
What did we see?
Practice - Study Guides
• Pg 10 ( #s 1, 2, 5 )
• Pg. 11 ( #s 1, 2, 3, 4 )
• Will Use Partners
Open Notes Quiz – 9/25/12
• Look in notes over outdoor activity (from today)
• 1] Write down 4 objects and list a Property and
Change for Each
• 2] For one of these objects, list a State-Change
• 3] When you melt ice into water, do the particles
get more or less ordered?
• 4] When this melting occurs, does the water
absorb or release energy?
Open Notes Quiz –
09/26/12
• 1] Look at info written down during outdoor
activity. Write down 2 objects you observed. For
one, write a Chemical Change you observed; for
another write down a State-Change you
observed.
• 2] When you evaporate water into gas, do the
particles get closer or further apart?
• 3] When this boiling occurs, do you add or take
away energy ( does the water absorb or release
energy )?