This video explains the structure of DNA and the role of histones and methyl groups in deactivating one of the X chromosomes in a female.  The deactivation of one X chromosome is random. As mitosis reproduces cells, they may contain the X chromosome inherited from the father or the mother.  This can’t be seen in...

This activity supports learning in science and English, using the context of Dr Edward Jenner’s work on developing a vaccine for Smallpox. Children learn how, through vaccination, Smallpox became the first and only human disease to be eradicated. They look at what other vaccines exist today and the current battles...

This resource supports learning in literacy and drama and science, all based around the life of Edward Jenner. After watching a short film, children discuss some of the main differences between plays and films, beginning to think in terms of cinematic storytelling. They use their scientific and historical...

The first video explores the two main types of networks: local area networks (LAN) and wide area networks (WAN).  The reasons for networking stand-alone computers are outlined, and the potential disadvantages too.  The connection options for devices on a network are briefly mentioned and covered in more detail in...

This video states that if an object has a force applied to it and it moves in the direction of the applied force then work has been done.

The general formula W = Fs is described (work done is the force applied in the direction of movement).

An example where the force applied is at an angle to the...

In this Teachers TV video, two consortia in Birmingham prepare to pilot the Secondary Diplomas in Engineering and Creative and Media. The...

Act 1

A video shows a square filled with balloons. A dog...

This video explores how far a liquid can be sucked up a tube. The theoretical maximum if a vacuum is created above the liquid is 10.3m.  How well do they do and does the diameter of the tube affect the results?