activity 6

1.                   0 = 255.373

32= 273.15

70= 294.261

212= 373.15

2. worksheet

 

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? When the molecules slow down it is easier to tell which ones are attracted to each other. The oxygen molecules are being attracted to the hydrogen atoms of different molecules.

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. 55 Kelvin is the temperature needed and 10 ATM is the pressure that is needed.

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

                Science as inquiry- This standard is used in these activities because the students are asking questions, making investigations, observations and explaining what they saw.

                Physical science- There is a lot of physical science used in this activity because the students are using a lot of knowledge with changing a substance from solid to liquid to gas.