Your body weight in kg: 165 lb / 2.2 kg/lb = 75 kg.
The area of the top of your lab book in inches²: 8.5" x 11.0" = 93.5 in²
The area of the top of your lab book in cm²: 93.5cm x 6.45cm = 603.2 cm²
190 °F = 87.8 °C ((190 - 32) * .556)
3 °C = 37.4 °F ((3 * 1.8) + 32)
15.5 acres / 2.48 = 6.25 hectares (1 hectare is actually 2.47 acres; 15.5 acres should be = 6.27 hectares)

Student heights.

Original box: L=9.5 W=8.2 H=2.8 (cm)
SA = 2(lw+lh+wh) = 2(77.9+26.6+23.0) = 2(127.5) = 255 cm²
V = lwh = 218.12 cm³
SA/V = 1.17

Height doubled:
SA = 2(77.9 + 53.2 + 46) = 2(177.1) = 354.2
V = 436.24
SA/V = .81

Length doubled:
SA = 2(155.8 + 53.2 + 23.0) = 2(232.0) = 463.0
V = 436.24
SA/V = 1.06

Questions

1. How did the SA/V change when it grew to twice its original height?
   SA/V decreased

2. How did the SA/V change when it grew to twice its original length?
   SA/V decreased, but not as much

3. Imagine the box as being a cell. How can the SA/V be used to explain limits to cell size?
   As cells get bigger, SA/V get smaller, so cells need to be small.
   

   How can the SA/V of a large cell be maximized?
   Divide one large cell into several smaller cells.

Mass of 100ml of water and beaker: 233 g
Mass of dry beaker: 134 g
Mass of water: 233 g - 134 g = 99 g
Volume (cm³) of water (estimate from πr²h): should be about 100 cm³. (1 g of water has a volume of 1 ml (1 cm³) at room temperature.)

Question p. 7

4. How did the mass measurement in g and volume measurements in ml and also in cm³ compare to one another?
   100 g water should be 100 ml (cm³) at 4°C

Graph of temperature changes over time.

Be sure to correctly label the axes:
X(Independent variable) axis: time (min)
Y(Dependent variable) axis: temperature (°C)

Temperature should increase over time with warm water

Temperature should decrease over time with cold water

Question p. 8
Did the body temperatures among members of the class vary? Can you provide a reason for the observed outcome?
Probably not. Humans are homeothermic - body temperature stay around 98.6 °F (37 °C).