NON-RENEWABLE SOURCES OF ENERGY:
Science in Focus – Electricity Generation 1 – fossil fuels (19m 15s):
RENEWABLE SOURCES OF ENERGY:
Science in Focus – Electricity Generation 2 – alternative fuels (19m 15s):
BBC KS4 Class Clips – Wind Farms – a 6m 36s video.
Energy & Recycling in California – hydrogen fuel cars & wind turbines – a 14m video.
Inside Science – Build your own Nuclear Reactor – a 13m 40s video.
BBC Short Circuit – a risky business – an 18m 43s video on nuclear power.
GCSE Bitesize – Work & Energy – a 4m 35s revision video.
GCSE Bitesize also has a 33m revision video at foundation level – Energy Resources & Transfer – part 1 covers energy transfer and part 2 covers work, power & energy. At higher level – Energy Resources & Transfer – part 1 covers work, power & energy.
Science Bank 20 (Heat): you just need part 2 – thermal expansion (from 5m 15s to 10m 15s) & part 3 – specific heat capacity (to 14m 15s):
Physics in Action – Expansion of Metals – an 18m 35s, old video.
Scientific Eye – Energy for Life – a 19m 9s video:
Science in Action – Respiration – a 19m 13s video.
Want2TlkScience? –Respiration – a 6m 27s video.
Scientific Eye – Breathing – a 14m 18s video.
KS3 Bitesize foundation level – Humans as Organisms part 1 – a video covering nutrition & the digestive system, the skeletal system & how muscles work, then finally the process of Respiration and the Respiratory System.
A nice simplied powerpoint and here’s a 4m 25 s video: The Human Body – Heart & Circulation .
KS3 Bitesize foundation level – Energy Resources – a video covering the different forms of Energy & Energy Resources.
Energy 101: Electricity Generation, a 5m 19s video explaining different fuels, thermal power generation, transmission and the grid; Generating Electricity – a 1m 35s video explaining how electricity can be generated using fuel, a boiler, water, steam, turbine and generator; Hydroelectric Power – a 2m 11s video.
Find a video lesson on this sub-topic at Dan Rott videos.
Paul Andersen covers the processes of aerobic and anaerobic Cellular Respiration in a 14m 14s tutorial.
Wiley have a number of Interactive Animations about Cell Respiration that take you through it step-by-step; just click on ‘Glycolysis’ or ‘Citric Acid Cycle’ or ‘Oxidative Phosphorylation’ in the link.
Another animated tutorial of the ETS is here.
How Cells Obtain Energy a 14m 2s vid from 2004:
Animal mitochondrion structure & the human mitochondrial genome (click to enlarge)
For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. A powerpoint can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. And both these sites – GCSE Bitesize & GCSE Bitesize – have revision pages (that take you through the topic), a test and an activity.
GCSE Bitesize covers Living Things in their Environment in 16m 44s.
ECOLOGY (food chains, food webs & trophic levels):
What is an ecosystem? video from The Virtual School:
What is a trophic level? video from The Virtual School:
Mr W sings Food Chains.
Science Bank 10 (Energy Cycles in Nature): Part 1 – Energy transfer in nature – food chains & energy flow through them (to 5m 25s); Part 2 – the Carbon cycle (to 10m 55s):
A short (2m 26s) vid from Clipbank – Recycling Nutrients & Dr Yan’s Rotting Food time lapse from Bang Goes the Theory (1m14s). What happens to your body after you die? – Instant Egghead video (2m 10s).
The Carbon Cycle: Carbon Cycle Video – Lesson Starter (3m), Carbon Cycle cartoon by Sofia (Climate Champion, 2006) & GCSE Bitesize – The Carbon Cycle (2m 41s). Finally, Mr W sings ‘7 ways to reduce carbon’:
How wolves change rivers (a nice intro to Ecology):
IGCSE Biology: Coursebook, chapter 15, pp. 218- 224
GCSE Bitesize has revision pages (that take you through the topic), a test and an activity, just scroll down to Exothermic & Endothermic Reactions.
For Doc Brown’s Chemistry quizzes, word-fills, crosswords and study notes go here and just scroll down.
A 3m41s vid on Endothermic & Exothermic Reactions (Bitesize Top 20 Demos):
Science Bank (Reactions & Energy Changes): part 1 – exothermic & endothermic reactions (just the first 4m 40s):
BBC Short Circuit Energy Changes – a 19m video.
Complete Chemistry for Cambridge IGCSE, chapter 9, pp.114 – 115