weekly homework for 3/7-11/11

Weekly homework for 3/7-3/11
All assignments must be 1/2 to 1 page reports
1. Explore and write a short report on commercial products that rely on diffusion for their effectiveness. (If you have trouble of thinking of ideas, walk through a supermarket or think about what you would see when taking such a walk.)

2. Research the role of diffusion in the mechanism action of transdermal patches, which are used for such purpose as preventing motion sickness or helping people stop smoking.
Art
3. Make a chart or drawing that illustrates how dramatically surface area can increase when an object is divided into small pieces.

4. Think of and list instances in which surface are affects how they do things in their everyday lives. For ex., why do their parents tell them to hang up their wet swimsuit rather than roll it into a ball?

5. Research and write a short report about what organs other than the small intestine have a large surface area in comparison with their size.
Math
6. Solve the following problem. Jason bought Lisa two pairs of earrings for her birthday. Each pair is in a cube-shaped box that measures 5 cm on each side. Jason checked his gift wrap supply and found he only had a small piece of wrapping paper left. He knows that Lila loves to unwrap the boxes separately. He is afraid it might take more paper to wrap each box individually than to wrap the two boxes together in one package. He asks for you advice. How could you help?

7. Challenge Problem: You finish painting the walls in your bedroom and find you have 1 quart of paint leftover. The label says that 1 gallon of paint will cover 20m squared. You measure an unpainted cinder block wall on your basement and find that its 5 m squared. Because you know there are 4 quarts in a gallon, you decide you have enough paint to cover the wall. Unfortunately, you run out of paint when only 90% of the cinder block wall has
been painted. Explain, in terms of this lesson, why you did not have
enough paint.