Hot air balloons float--sometimes. Regular old balloons that you get at a party float--sometimes. Boats float--sometimes. What makes them float and what makes them sink? How can a boat made of steel float but a solid chunk of steel sink to the bottom of the ocean? Part of the answer has to do with something called density, which will be discussed in this chapter. And yes, the concepts addressed in this chapter do have a lot to do with weather.
Type Book ChapterPub Date 1/1/2005Stock # PB169X6_3