Sunday, July 10, 2011

Activity 6








Tasks to be completed for Acitivity 6

1. Convert 0°F, 32°F, 70°F, and 212°F to Kelvin

0 F= 255.222 Kelvin
32 F=273.15 Kelvin
70 F= 294.111 Kelvin
212 F=373.15 Kelvin

2. Complete the Teaching Idea: States of Matter Simulation Lab by Kelly Vaughan. Complete the lab worksheet as if you were a student, and then post this on your blog. You can scan it or just take a picture of it.



3. In the States of Matter simulation, choose the Solid, Liquid, and Gas Tab at the top of the screen. Choose the water molecule and cool the water to 0 K. Describe how the water molecules are aligned and attracted to each other. Which atoms are attracted to which other atoms?
They are all at the bottom of the barrel, stacked very close to each other.  It seems as though they are touching one hydrogen to one oxygen.  It is pretty cool to see.

4. Switch to the Phase Changes Tab on the States of Matter simulation. Notice how on the bottom right there is a small red dot that indicates where the system is at as far as temperature, pressure and state of matter. Play with the simulation to notice changes, notice that when you push down the pressure can go way up and explode the box. On your blog, report a temperature and pressure required to make oxygen a liquid. This is sometimes how the oxygen exists in pressurized oxygen tanks, perhaps like ones you may use to go diving.
44K


5. List and describe at least two Science Standards that this activity addresses.

D.4.3. Understand that substances can exist in different states-solid, liquid, gas

This one is self explanatory, especially with the simulation that we just went through.  Substances, especially water can change into a solid, liquid or gas.

D.4.4 Observe and describe changes in form, temperature, color, speed, and direction of objects and construct explanations for the changes


Temperature played a major role in discovering what point water would turn into a solid or a gas or a liquid.  This happens with many other substances as well.

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