It's a continuation of a big study that made a splash four years ago when the first results came out.

NPR: Study: Drug Can Curb Breast Cancer Recurrence

The splash of four IPOs nearly at once could be a sign the market is hungry for new shares to buy.

WSJ: Fender, Kayak, Others Seek to Break IPO Drought

Thereafter the learners eagerly completed two of the four experiments for the IYC Big Splash with the expert supervision of Erica Steenberg from RADMASTE Centre, University of Witswatersrand, and 3 volunteers.

UNESCO: World Water Assessment Programme (WWAP)