New way (for me anyway) to teach balancing chemical equations” submitted by Sandra Gambarotto

What’s Better for Wounds: Scabs or Bandages? – YouTube

When someone gets a little scrape, it’s pretty common for them to cover it with a bandage while it heals. There are some people, though, who think it’s best to leave the wound uncovered and let your body do its healing thing. Who’s right? Science holds the answer! Continue reading

Grappling with Controversial Issues using Google Forms and Polleverywhere

What is this? Google Forms allows students to survey groups of people to get their opinions on key questions related to controversial issues (e.g., Reproductive cloning or Opt in vs. Opt out organ transplantation systems to relieve the organ shortage crisis).  They can combine the survey results with their own background research to make a recommendation to a governmental agency.

Polleverywhere is a polling website that is meant to be used with a live audience as people can see the responses of others.  This can be used to engage the audience if they choose to do a presentation.

How do I use this? The teacher can create a survey using Google Forms (watch the video link below that shows you how).  This data is automatically placed in an Google sheet and can be used to generate graphs that can be used to help students analyze and interpret the data.  Key graphs can be used in the student report or presentation.

Why use this?  Google Forms allows for easy collection and compilation of data.  This allows students to spend their time on analysis and reflection rather than counting up responses.  An additional perk is that the action of passing out a device about different issues triggers conversations that do not happen as much when using paper and pencil surveys.

Click here to download the complete resource.

Do Volts or Amps Kill You? Voltage, Current and Resistance – YouTube

There’s a saying that “it’s not the volts that kills you, it’s the amps” and while that’s true in a way, you can’t have amps without volts and skin resistance plays a big part too. This video explores all this, introducing voltage, current and resistance for those new to these things. Continue reading

Astrophysicists find elusive molecule that ‘kick-started’ the universe | CBC News

​​​​​​​They knew it had to exist, but they just couldn’t find evidence of it. Now, after decades of searching, astrophysicists have found verification of the first molecule that formed after the Big Bang. Continue reading