The science of snowflakes - Maruša Bradač The phrase “no two snowflakes are alike” was first coined by Wilson "Snowflake" Bentley (1865-1931). He admired the snowflakes and wrote: "Under the microscope, I found that snowflakes were miracles of beauty; and it seemed a shame that this beauty should not be seen and appreciated by others. Every crystal was a masterpiece of design and no one design was ever repeated...When a snowflake melted, that design was forever lost. Just that much beauty was gone, without leaving any record behind.”You can explore more about his life here. The physics of how snowflakes form is very complex and some researchers devote their entire life studying these. One of them is the physicist Ken Libbrecht. BBC Bitesize - KS3 Chemistry - The periodic table - Revision 1 All the different elements are arranged in a chart called the periodic table . A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 19th century. The modern periodic table is based closely on the ideas he used:
Molecular Workbench Three Views of MW Senior Scientist and Molecular Workbench Developer Charles Xie, Researcher and Manager Amy Pallant, and Technology and Curriculum Developer Dan Damelin describe the history of Molecular Workbench and our vision for the future. Watch the Video undefinedundefinedundefined Selected Curriculum Modules
Scientix Works SHORTCUTS ⇒ e-BookEMINENTOnline debatesPamphletsPostersPress cornerpublicationsvideos 12 November 2015: Can teachers educate and inspire tomorrow’s innovators to foster skills for an innovative society?19 November 2015: The ideal science classroom/methodology for inspiring 11-14 year olds?2 December 2015: Collaboration in STEM education This Week in Chemistry: A New Antibiotic, & Flexible Implants for Paralysis Here’s the weekly summary of both new chemistry research and studies that have been in the news. Unless you’ve been living under a rock, you’ll have heard the news about a new antibiotic and its novel method of discovery, but there have also been stories about the potential of testosterone injections to slow the growth of prostrate cancer, and the mystery of nature’s missing structural red colours finally getting an explanation. As always, links to further articles and original research papers are provided below. Featured Stories A new antibiotic – and a new method to discover more: [Article] [Study]
STEM Resources for Teachers Connecting with the millennial generation, our current K-12 students, means a new way to teach and introduce material. Tech savvy Millennials love learning that is individually adapted to them with just enough detail that is needed at that particular moment in time. While very motivated and goal-oriented, Millennials want to learn in a team-oriented environment. Teaching to these students should use methods that connects to their needs while also meeting set educational standards. Looking for new ways to teach STEM? These free resources are available for you to infuse new ideas into your current curriculum. The Periodic Table's Endangered Elements Click to enlarge We’re all familiar with the periodic table, but the majority of non-chemists probably aren’t familiar with the everyday uses of some of the many elements it contains. Some elements that many haven’t heard of find uses in technologies or applications we take for granted – but the supplies of these elements on Earth are not infinite. Today’s graphic, in a collaboration with the American Chemical Society’s Green Chemistry Institute, looks at some of the endangered elements in the periodic table, and why we might miss them when they’re gone. In total, the graphic shows 44 elements whose supply is at risk.
ACD/ChemSketch for Academic and Personal Use ACD/ChemSketch Freeware is a drawing package that allows you to draw chemical structures including organics, organometallics, polymers, and Markush structures. It also includes features such as calculation of molecular properties (e.g., molecular weight, density, molar refractivity etc.), 2D and 3D structure cleaning and viewing, functionality for naming structures (fewer than 50 atoms and 3 rings), and prediction of logP. The freeware version of ChemSketch does not include all of the functionality of the commercial version. Visit ACD/ChemSketch to learn more about the commercial version. As an Educational Tool ACD/Labs software aids in teaching key chemistry concepts to high school, undergraduate, and graduate chemistry students. If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system Mercury Venus Earth You Are Here
Fun with frozen: making ice grow I have been noticing lots of fun ideas being shared by my fellow bloggers that are all related to the Walt Disney movie “Frozen.” I must admit that my grandsons and I have enjoyed watching this movie at home on more that one occasion. So for all you “Frozen” fans out there (and for those of you who just like really cool ice science), here is a fun way to make ice grow just like Elsa does! Well almost – to correctly state this for our young scientists, here is what crystallization means… So I am going to try and explain this but at the end of this post, I will put a video link to where you can learn a little bit more about it and probably understand it better too.
The Best Science Sites Of 2019 – Part One It’s time for another “Best” list! I’m adding this post to ALL MID-YEAR “BEST OF 2019” LISTS IN ONE PLACE! You can see all previous editions of this Science list, along with other Science-related “Best” lists, here (Best list son Planets & Space are here). 2018 in review: Compound Interest's Top 5 graphics With 2018 coming to an end, it’s time to reflect on the graphics from the past twelve months. Here, we’ll look at the 5 most popular graphics on the site this year, as well as some of my favourites! For all of the graphics featured in this round-up, clicking on the graphic will take you to the original post, where you can read the accompanying article, view a larger image, and download a PDF of the graphic. Periodic Table Battleship I have posted a lot about Chemistry lately. My oldest has been studying it and really enjoying it. I love his science-y mind! Today I have a really fun & simple chemistry game to share. We played Periodic Table Battleship! This game can be played even by kids who know nothing about the Periodic Table Yet.