Many teachers demonstrate the reaction of lithium, sodium and potassium with water when discussing the trend in reactivity of the alkali metals. Continue reading
Diluting acids to prepare a solution of a required concentration requires skill, training and common sense. This Flinn Scientific video offers good, practical advice on how to prepare dilute acid solutions. A safer alternative to working with concentrated acids is to purchase prepared dilute solutions. Always check the MSDS and your Board protocols before working with chemicals.
««« By Luba Mycio-Mommers, PhD …
A new study may help mankind understand the gravity of climate change.
West Antarctica has lost so much ice between 2009 and 2012 that the gravity field over the region dipped, according to an announcement Friday from the European Space Agency (ESA). The conclusion is based on high-resolution measurements from satellites that map Earth’s gravity.
The gravitational fluctuation over the Antarctic Peninsula is small, but it’s further evidence that melting ice is fundamentally changing parts of the planet. Continue reading
This is a call for ALL Junior/Intermediate (Grades 4-8) teachers in Ontario to complete a 15-20 minute survey regarding science experiences and teaching strategies in elementary schools. Completion of this survey allows you to enter your email into a draw for 1 of 4 $25 Chapters gift cards. Please refer to the link below for further details: