Why does that happen? Do Now # 11

Do Now #11?  Why do our ski goggles or car windshield gets foggy, drinks sweat, ice forms on the outside of our windows when it hasn't rained, and why do clouds form?






http://www.ptable.com/

States of Matter Game

Play the game, to practice sorting plasmas.  Let me know your high score. Click HERE

How does temperature and pressure affect the state of matter?  Click Here

Bose Einstein Condensate - 0 Degrees Kelvin - Zero Energy

OK Zach, Bend your mind around this. not really the same thing but here is a video about liquid metal that is mind blowing.

Vocabulary

Do Now #11. What is your best method for learning new vocabulary?

• solubility
• solute
• solvent
• concentration
• dilute
• dissolve
• solution
• mixture
• chemical property
• physical property
• malleability
• ductility
• funkychicken
• thermal conductivity
• reactivity with
• flammability
• state of matter
• plasma, another plasma link
• define gas
• define liquid
• define solid
• define phase change
• thermal energy
• heat
• temperature
• vaporization
• condensation
• freezing
• melting
• sublimation

Do Now #10 - Law of Conservation of Mass

Do Now # 10:  What is the law of conservation of mass/matter and does it make sense to you?  Why or why not?


































1. You have a 20Kg block of wood in a fire.  An hour later there is 1 Kg of black ash.  What happened to the other 19 Kg?


2. You add 20 gallons of fuel to your car.  How much does that mass in Kg? After a week you have only 1 Kg of fuel left in your car, what happened to the other _______Kg?

 1 US gallon = 3.78541178 liter  and the density of Fuel lets say is .7g/mL

3. Lets imagine a tree absorbing 100 Kg of of CO2 per year.  Lets also say it emits 73Kg of oxygen back into the atmosphere.   What happened to the other 27%?

4. The U.S. gets about 52% of all its energy for electricity from Coal fired power plants. 1.39 x10 e12 pounds of coal were consumed last year for the production of energy. How much Carbon Dioxide was emitted into the atmosphere?

5.

Hot Air Balloons and the Mass of Air - DO NOW : #9

Do Now # 9 Does Air Have Mass?  How do we know?








Hot air balloons are based on a very basic scientific principle: warmer air rises in cooler air. Essentially, hot air is lighter than cool air, because it has less mass per unit of volume. A cubic foot of air weighs roughly 28 grams (about an ounce). If you heat that air by 100 degrees F, it weighs about 7 grams less. Therefore, each cubic foot of air contained in a hot air balloon can lift about 7 grams. That's not much, and this is why hot ir balloons are so huge -- to lift 1,000 pounds, you need about 65,000 cubic feet of hot air.

In simple terms, density is the mass of anything - including air - divided by the volume it occupies. In the metric system, which scientists use, we usually measure density in terms of kilograms per cubic meter. The air's density depends on its temperature, its pressure and how much water vapor is in the air. We'll talk about dry air first, which means we'll be concerned only with temperature and pressure

Mass of Air
1.21kg/m³ at 20 deg C at sea level
1.16kg/m³ at at 30 deg C

Read more: http://wiki.answers.com/Q/What_is_the_mass_of_a_cubic_meter_of_air_at_room_temperature#ixzz1XhtdMfjL

Read How Stuff Works For More Info

Components in Dry Air

The two most dominant components in dry air are Oxygen and Nitrogen. Oxygen has a 16 atomic unit mass and Nitrogen has a 14 atomic units mass. Since both of these elements are diatomic in air - O₂ and N₂, the molecular mass of Oxygen is 32 and the molecular mass of Nitrogen is 28.
Air is a mixture of gases and the total mass can be estimated by adding the weight of all major components as shown below:

Components in Dry Air	Volume Ratio compared to Dry Air	Molecular Mass - M(kg/kmol)	Molecular Mass in Air
Oxygen	0.2095 = 20.95%	32.00	6.704
Nitrogen	0.7809 = 78.09%	28.02	21.88
Carbon Dioxide	0.0003= .03%	44.01	0.013
Hydrogen	0.0000005= etc	2.02	0
Argon	0.00933	39.94	0.373
Neon	0.000018	20.18	0
Helium	0.000005	4.00	0
Krypton	0.000001	83.8	0
Xenon	0.09 10-6	131.29	0
Total Molecular Mass of Air			28.97

Hot Air Balloon Grading Sheet:

Hot Air Balloon Criteria:

Group Name____________________________________        Class Period____

Members in the group________________________________________________

	Student Check List	Teacher Grade and comment
Hypothesis (if : then statement)
Renderings / Diagrams/ Designs
Data tables created
Data and observations gathered
Conclusions made
Discussion of results (possible errors, possible next steps)
Creativity of design and neatness
All completed in Notebook
Finished on Time
Teamwork Grade
Final Report
Other: (if something comes up I will add it here, don’t forget this is my first time with this lab also so we are learning together)