This fizzing chemical reaction between two house hold substances to make a third seems like magic and really fascinates people. Teachers please listen to the whole podcast to pick up safety tips. This is ideal for home schooling. https://www.webqc.org/balance.php?reaction=CaCl2%2BNaHCO3%3DH2O%2BCO2%2BNaCl%2BCaCO3 https://www.webqc.org/balance.php?reaction=CaCO3%2BHCl%3DCaCl2%2BCO2%2BH2O

This is a strategy podcast   Actually I am a while off automating this I find, so I will publish as produced so there is less to manage. To access all podcasts;  http://drhill-science-news.blogspot.com.au/search/label/drhillteach Feeds: http://feeds.feedburner.com/com/CrmV

Teach probability using spinning wheel using parts from a remote control car.

A simple idea of using squares of clear plastic supports group learning and guidance at home

    The variable pitch rack and pinion is explained https://sketchfab.com/models/cdf509746d9e48e99bcbbf3d79db943e

Drum, Disk, Break fade, skidding and antilock breaking

Understand bearings and stationary contact with the road

Learn about how the blue ring octopus delivers a deadly neuro-toxin and other facts

Julian asked about the difference between "action" and "energy"

A short talk about the Australian relative of the Black Widow spider