Washington, DC--Water makes up more than 70 percent of our planet and up to 60 percent of our bodies. Water is so common that we take it for granted. Yet water also has very strange properties ...

Tips with an exceptionally small orifice are ideal for use with low-density liquids, like PCR reagents. The extra narrow tip orifice, in combination with the extended length of the tip, means that ...

Students will be able to explain that the density of a substance has to do with how heavy it is compared to the size of the object. Students will also be able to explain that density is a ...