Some objects float in water and other sink. But did you know that you can change whether ... water is very similar to the density of the carrot. The materials in this activity are not hazardous.

This hidden geological layer, located between 254 and 410 miles (410 and 660 kilometers) beneath the Earth’s surface, covers ...

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.