Resources
Double beam tube
Like the Deflection tube investigation this allows A-level students to measure the specific charge for an electron. It provides a step-by-step guide, along with the calculations that are required to find this measurement.
This resource has been provided by Keith Gibbs.
Double Blind
This Science upd8 activity draws on clinical trials. Eight young volunteers had been in clinical trials before, but this time things went horribly wrong. Six of the eight were left fighting for their lives. In this discussion activity students consider whether new treatments should be ever tested on human...
Double Blind Trials Workshop
These three activities, from Centre of the Cell, demonstrate how double blind trials are run, explaining what a placebo is and how the placebo effect works, how bias is removed as far as possible and how participants and trial medicines are randomised. Through these activities, students investigate the placebo...
Double Brackets
This activity, for two players, is based upon the game of boxes. Students are presented with a partially completed game, with double brackets to expand correctly in order to gain extra edges. Solutions are at the bottom of the page for a player's opponent to check the validity of the solution. A correct answer...
The Double Crossed project was developed by the Centre for Science Education and supported by the Astra Zeneca Teaching Trust as a collaboration between science and history teachers to produce cross-curricular resources.
The project aim was to make science learning more accessible, effective and enjoyable by...
Developed by the Centre for Science Education and supported by the Astra Zeneca Teaching Trust, the Double and Triple Crossed projects aimed to bring science and history together to increase engagement in science through topic based, contextualised learning.
The project enabled thirteen science and history...
The greatest achievement of science in the twentieth century ... It will be an enormous success, and deserves to be so - a classic in the sense it will go on being read' - Sir Peter Medawar Francis Crick and James...
Double helix images
A series of images representing double helix images.
- DNA double helix and sequencing output: molecular model of a DNA double helix showing the individual atoms (apart from hydrogen) as coloured balls. Carbon atoms are in white, oxygen in red, phosporus in purple and nitrogen in blue....
In these 4 lectures, HHMI president and Nobel laureate Thomas R. Cech explains the role of RNA in cellular biology. He also discusses other implications of RNA catalysis. Lectures were given in 1995.