Student Activity: Predators in Control

Student Activity: Predators in Control

Predator–prey relationships are one of the most important biotic relationships in the sustainability of an ecosystem. Predators are the natural controls in an ecosystem, limiting the size of a prey population. Many studies have illustrated that the long-term sustainability of an ecosystem is severely affected if top predators are eliminated. Prey populations increase as a … Continue reading

Labelling Requirements for Consumer Products in 2017

Labelling Requirements for Consumer Products in 2017

WHMIS 2015  WHMIS 2015 covers a wide range of hazardous chemicals and substances (called “controlled products”), including everyday chemical products found in workplaces, such as cleaning supplies, adhesives and solvents. Although not as dangerous as other controlled products used in industrial processes, these products may still pose hazards to workers and the environment. In Canada, … Continue reading

Teacher Demo: Dancing Paper

Teacher Demo: Dancing Paper

In this demo, a polyethylene strip is charged by rubbing with wool. The charged strip is then used to make paper circles stand on their edges inside a Petri dish. This demo introduces students to the charging of materials by induction as opposed to charging by contact. Click here to download the complete demo…..

SciNews to Engage Your Students

SciNews to Engage Your Students

What killed the dinosaurs?; frogs’ remarkable tongues; can hydrogen be turned into a metal?; even smarter phones; CO2 and the flow of a major ocean current; interstellar slowdown – just a few of the themes in today’s eclectic collection of SciNews.  Share these stories with your students and get them excited about science.