The discovery of a female fetus on ultrasound would avoid an invasive test with its risk of miscarriage. Results showed that the overall success rate of gender identification between 12 and 14 weeks was 80% which is less than invasive karyotyping.
Polymer clay is a type of hardenable modeling clay based on the polymer polyvinyl chloride (PVC).rands of polymer clay include Fimo, Sculpey, Premo, Cernit, Formello, Modello, Du-Kit, Pardo and Kato Polyclay. A home pasta-making machine is a popular multi-purpose tool for polymer clay artists.
Fossil resin (colloquially called amber) is a natural polymer found in many types of strata throughout the world, even the Arctic. The oldest fossil resin dates to the Triassic, though most dates to the Cenozoic.