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SciNews, Thursday, February 9, 2017
Hypothermia; concussions and Alzheimer's disease; why hot water can freeze faster; the Bat Bot; possible sign of dark matter; images of Saturn's rings - just a few of the themes in today's eclectic collection of SciNews. Â Share these stories with your students and get...
The Universe in a Cup of Coffee
https://youtu.be/xANGsTqxdUw Reactions is joining PBS Digital Studios! Woohoo! To celebrate, we're doing a deep dive on the surprisingly complex and beautiful chemistry behind our favorite morning beverage: coffee. The chemistry of the universe is, in a way, in your...
Knitted muscle could power the supersuits of the future
https://youtu.be/AQ8oQYhcK0A Material could be used for wearable prosthetics, “exoskeletons”. Learn more: http://scim.ag/2j5uanU
Borax Slime Activity Concerns Update
Borax Advisory Update Health Canada Health Canada issued an advisory this past summer, suggesting that exposure to boron substances be reduced as much as possible from all sources. They identified boron substances as a developmental and reproductive health risk. They...
SciNews, Sunday, February 5, 2017
Human presence seen in Arctic plant life; human organs grown in pigs; solar wind carries oxygen to moon; CO2 could shut down major ocean current; Doomsday Clock closest to midnight in 64 years; Curiosity rover prepared to test for signs of martian life; 72 on...
Teacher Demonstration: Carbon Use by an Aquatic Plant
This activity demonstrates the use of carbon by an aquatic plant. The process of photosynthesis can be represented by the reaction: CO2 + H20 + light → C6H12O6 + O2. There are two distinct steps: the light dependent reactions (involving H20) and the light independent...
Turn It Around
A gear is a toothed wheel that connects or meshes with another gear. It is used to transmit forces in machines that range from something as small as a watch to something as large as the locks on a river system. There are four basic types of gears. A worm gear is used...
How An Igloo Keeps You Warm
https://youtu.be/1L7EI0vKVuU If you ever find yourself stranded in the snowy Arctic (or bored in Minecraft), you’re gonna need to know how to build an igloo. But how can building a house made of ice keep you warm? The science behind building an igloo is the same...
Reaction in a Bag
https://youtu.be/3Qi8AAulYcQ Hold a reaction in your hand, literally, as students observe and ask questions. This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development...
Colour Changing Carnations – Sick Science! #020
https://youtu.be/AMvEVnAFCNA Where does the water go when a plant is watered? With this experiment, children can discover for themselves how essential the functions of roots and stems are to plant growth. As the colored water is absorbed, students will be able to see...
New Elements Contest | University of Waterloo
The contest is to design an elemental tile for each of the four newly named elements, nihonium (Nh), moscovium (Mc), tennessine (Ts) and oganesson (Og). The top entries will be featured in the upcoming issues of Chem 13 News and will be chosen based on creativity,...
Teacher Demo: Osmosis Across a Semi-permeable Membrane
Osmosis, the movement of a solvent (usually water) across a semi-permeable membrane from an area of higher solvent concentration to an area of lower solvent concentration, is key in the maintenance of homeostasis. This demo shows osmosis across a semi-permeable...