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Your Baby's Development in Pictures The following sequence of pictures shows an overview of the development of a human from fertilisation, into embryo, then foetus and child.  Some pictures are photographs and some are ultrasound images.  You can jump to a more detailed description of events by clicking on the weekly number above each picture.

This ten question multiple choice quiz tests your understanding of nucleonics. It covers alpha, beta, and gamma radiation, radioactive dating, fission and fusion. You may wish to review the basics of radioactivity and radiation and problems involving radioactive decay and carbon dating.