Canadian cities rethink removal of fluoride from tap water | CBC News

Two Canadian cities are doing an about face on their decision to remove flouride from drinking water after rates of tooth decay spiked, especially among children.

Source: Canadian cities rethink removal of fluoride from tap water | CBC News

We’re launching a new cohort of Water Keepers for Life!

Registration is now open  for the Water Docs @ School Action Projects informational webinars , taking place in August and September! If you’re a Grade 8 or Grade 7 teacher, you can register now . Or, if you know any teachers, please let them know about this exciting

Source: We’re launching a new cohort of Water Keepers for Life!

When is water safe to drink? – TED-Ed by Mia Nacamulli

Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity – there are nearly 800 million people who still don’t have regular access to it. Why is that? And how can you tell whether the water you have access to — whether from a tap or otherwise — is drinkable? Mia Nacamulli examines water contamination and treatment. Continue reading

The Cheerios Effect

Ever notice how cereal clumps up in your bowl, or how cereal sticks to the edges of the bowl? Bubbles in beverages do the same thing.You’ve probably seen this surface tension and buoyancy at work, but did you know there’s some mind-blowing science behind it? What we learn in our cereal bowl even connects to the lives of tiny insects that walk on water. Continue reading

MAKING CONNECTIONS IN GRADE 8 SCIENCES – by JULIE ARSENAULT-HOWICK

This project started with a Bungee Barbie activity (this one was developed by Stephanie Minor, DSBN and translated into French by me). This activity was great, as it helped students develop skills in making predictions and measuring results of trials and making modifications based on those trials. Continue reading

The Cosmic Origins of Earth’s Water

Why is Earth is a blue planet? Because it’s covered in water! Where did Earth’s water come from? Of course, water isn’t unique to our planet. The origin of water traces beyond the solar system to the earliest days of the universe. Here’s the story of the galaxy’s H2O. Continue reading

Colour Changing Milk | Experiments | Steve Spangler Science

© Copyright 2013 Steve Spangler Science…Written by Steve Spangler

Experiment Materials

  • Milk (whole or 2%)
  • Dinner plate
  • Food colouring (red, yellow, green, blue)
  • Dish-washing soap (Dawn brand works well)
  • Cotton swabs

Click here to see the activity… Continue reading