This site is Flash-based. You will need a Flash emulator browser extension, such as Ruffle, to view it.
From site:
There are three main goals of this web site. The first is to provide an educationally sound online resource that can be used independently by pupils within a school setting. The second is to provide teachers with an online resource that is user friendly and combines suggested classroom activities and online activities with background support and information. The third is to present information about Ancient China through the use of objects from the British Museum’s collection…
The aim of this program is not to be a definitive source of information about all aspects and all time periods relevant to early Imperial China. Rather, it is geared towards illuminating certain aspects of early Imperial Chinese history that are especially important, interesting, or lend themselves to multimedia treatment. It is expected that certain basic ideas and events relating to early Imperial China will be addressed by the classroom curriculum either before or after the pupil explores this product.