1. 9-6 Identify the characteristics of the planets. 1. Planet Chart on pg. 8 2. Habitable Zone Pg. 7—Work on this as your warm-up.

2. Habitable Zone — the zone between the point where there is too much and too little sunlight. Beyond the inner edge of the Habitable Zone, it is too hot for life and surface water boils away. Beyond the outer edge of the Habitable Zone, liquid water freezes. Also, at some point beyond the outer edge of the Habitable Zone, sunlight becomes too dim to be a viable energy source for organisms living on or near the surface. Within the Habitable Zone, water can exist as a liquid, given the right atmospheric conditions. Draw the Habitable Zone on pg. 7. Include the planets.

3. Planet Distance from Size Gravitational Composition Availability Surface the Sun (Mass) Force of Atmosphere H₂0 Temperature MERCURY VENUS EARTH MARS JUPITER SATURN URANUS NEPTUNE Pg 8

4. Pg. 7

5. The target planet is 'Gliese 581d', a super- Earth about eight times heavier than our own planet. Gliese 581d and its three known sister planets orbit the low-mass red dwarf star Gliese 581, about 20.3 light-years (194 trillion km) away from us, in the constellation Libra.

6. HOMEWORK: Your notebook will need to be completed by Monday 9-10. This will include coloring with four colors on the odd numbered pgs. Table of Contents complete.

7. Acetone vs Water Lab 1.Make sure you gave me metric units. 2.Always label the x and the y axis. 3.Always give your graph a name. 4.Quantitative observations are numerical. EX. The peanut was 33mm in length. 5.Qualitative observations are using your senses. EX. The peanut was white. 6.Make a key. Do not write on top of your graph. 7.NEATNESS IS IMPORTANT

8. CONCLUSION: 1. Why did packing peanut “B” dissolve in water but not in the acetone? 2. Why did packing peanut “A” dissolve in the acetone but not in the water? 3. What is a solvent ? 4. What is a solute? 5. Identify the solvents and solutes for each set of conditions. 6. What is the difference between a polar and a non-polar molecule? 7. Which packing peanut is a natural polymer and which is a synthetic polymer? 8. How did the actual number of drops compare to your estimated value? 9. Were you surprised by how quickly the packing peanuts dissolved? Explain. 10.Why it would not be a good idea to transport gasoline in a polystyrene container?

9. KEY: 1.Packing Peanut “B” is a polar material and will not dissolve in acetone a non-polar solvent. “B” will however dissolve in water, a polar solvent. 2. Packing Peanut “A” is a non-polar material and will not dissolve in water a polar solvent. “A” will however dissolve in acetone, a nonpolar solvent. 3. A solvent is the thing, often a liquid, which dissolves something else. 4. A solute is the thing, sometimes a solid, which get s dissolved. 5. The packing peanuts are solutes, acetone and water are the solvents. 6. A polar substance will dissolve in polar solvents, like water. A nonpolar substance will dissolve in non-polar solvents like acetone, or gasoline. 7. Packing Peanut “B” is the natural polymer (starch). Packing Peanut “A” is the synthetic polymer (polystyrene). 8. Answers will vary. 9. Answers will vary. 10.Gasoline, being a non-polar solvent, would likely dissolve the polystyrene container.