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Issue: March 2017 364

Extract: • abpischools.org.uk • backstagescience.com • quizlet.com • bbc.co.uk/science/earth • Weird Science YouTube • A students’ guide to global climate change • GoConqr GCSE Revision Tips • popularscience.co.uk

Special Issues and Index

Issue: March 2017 364

Contents and Editorial

Issue: December 2016 363

Letters

Issue: December 2016 363

Science note: Gummy bear osmosis

Issue: December 2016 363

Author: Danielle Kohlman

Extract: Potatoes are often used to explain osmosis, however students forget that they contain sugars. This creates an additional learning point which may be rejected as it doesn’t fit with students’ understanding of sugary foods. In order to combat this, try gummy bear osmosis!

Science note: Oxidation numbers of sulfur in the thiosulfate ion

Issue: December 2016 363

Author: Christopher Talbot

Extract: Oxidation numbers are the charge an atom might be imagined to have when electrons are counted according to an agreed set of rules. However, questions arise when molecules contain homopolar bonds, as these bonds are ignored when calculating oxidation numbers.

Theme editorial: The attraction of space

Issue: December 2016 363

Author: Geoff Auty

Extract: In 1957, Russia launched Sputnik 1 into space, the first satellite to orbit the Earth. There was no news until it had been successful. This was followed by Yuri Gagarin becoming the first man in space in 1961..

Astro Academy: Principia – a suite of physical science demonstrationso Academy: Principia – a suite of physical science demonstrations conducted aboard the ISS

Issue: December 2016 363

Author: Andy McMurray

Extract: The packing of apparatus and its use by by Tim Peake on the ISS for conducting a number of schoolexperiments in near zero gravity.

Forces during Tim Peake’s launch to the International Space Station

Issue: December 2016 363

Author: Robin Mobbs

Extract: Despite the advanced technology and engineering that has gone onto the International Space Station and other space programmes, the measurement of the force experienced in the spacecraft is tested using a method that is well over 350 years old. The time of oscillation of a simple pendulum, as often investigated in school physics, provides the basis for comparing the forces experienced by astronauts with the force of gravity we experience on Earth and recognise as ‘weight’.

Astro Academy: Principia – using Tracker to analyse experiments undertaken by Tim Peake on the International Space Station

Issue: December 2016 363

Author: Robin Mobbs

Extract: While on the International Space Station, Tim Peake undertook and recorded video files of experiments suitable for physics teaching coordinated by the National Space Academy. This article describes how the video of these experiments was prepared for use with tracking software. The tracking files of the videos are suitable for use by teachers or students, and provide a graphical analysis of what happened.

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