A collection of videos for Chemistry SL. Since Chemistry HL overlaps with Chemistry SL to a great degree, these videos can also be useful for Chemistry HL.
A good collection of science related activities and lessons that could be used for science fairs.Topics include: Astronomy, Biology, Chemistry, Earth Science, Physical Science and Technology.
This video explains the principle of random uncertainties and systematic errors really well. However, be careful that students don't start finding errors in all of their 'good' equipment as a result of this video.