Students also learn that if an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float. Download the student activity sheet and distribute ...

Less dense solutions and objects float on top of solutions of greater density ... Avoid pouring oil down the drain of a sink or toilet because oil can clog pipes! Either wash and reuse the bottle or ...

Did you ever wonder why hot air balloons float? You may already have some ideas. Think about them and then choose one of the options below that seems closest to why you think balloons float.