Posts Tagged ‘electron’

Static electricity

Wednesday, April 13th, 2011

Lightning by -Qualsiasi on flickr

Start by watching this brainpop video.   And here is our old friend Bill Nye‘s explanation.

Here are a couple more links to some useful information:- this one from enchanted learning and this one from science made simple.  

Now can you explain how lightning happens?

Another useful bit of information.  And download this animation to help you as well.

Atomic structure

Tuesday, January 25th, 2011

Sodium2 by Mrs. Pugliano on flickr

We’ll kick off our new unit on STRUCTURES by looking at the structure of the the atom.  YOU KNOW THIS STUFF ALREADY so the first part will be a recap, then we’ll go beyond the material you covered in Grade 8.

Here’s the presentation we will use in class: KS4 The atom

And here are some practice worksheets to see if you have understood the concepts.  DO THEM! struc of atoms1   basic at struc

This is a useful resource to help you get up to speed with these ideas.

More resources: A Few Definitions   Atomic Structure Projections

Elements_compounds_or_mixtures

It’s testing time!

Friday, September 25th, 2009

You’ve all been asking, pleading, begging for another assessment.  Well, the good news is, you have one coming up next week – YEAH! 

Block H students will take it on THURSDAY 1st OCTOBER. 

Block D students will take it on FRIDAY 2nd OCTOBER.

Look through your notes from class, and go back through all the blog posts on atomic structure, the Periodic Table, electron configuration, metals vs non-metals, ionic and covalent bonding, Lewis structures, writing formulae, balancing equations et al.

COME AND SEE ME DURING TUTORIALS if you need help.

Lewis structures

Thursday, September 10th, 2009
dot and cross diagram wikimedia commons

dot and cross diagram wikimedia commons

Lewis structures, also known as dot and cross diagrams, represent the arrangement of valence electrons in elements and compounds.  This site has a detailed explanation of how to draw them.

These sites are ones we will use in class to practice.  Feel free to practice at home too 🙂

http://chemsite.lsrhs.net/bonding/flashLewis.html

http://itl.chem.ufl.edu/2045/lectures/lewis_ramyess/pjb_ramyess.html

http://education.jlab.org/elementmath/index.html

http://education.jlab.org/indexpages/teachers.php

http://www.stolaf.edu/depts/chemistry/courses/toolkits/121/js/lewis/

Atomic structure

Wednesday, September 2nd, 2009

http://science.nayland.school.nz/SimonPa/Webpage/Year11/Atomic_structure_image/atom%20structure.jpg

YOU KNOW THIS STUFF ALREADY!  You covered it in grade 8.  This is just a recap.  Click on the link to see the slides we will use in class. Atomic Structure Projections

Also, take a look at this link from the BBC Bitesize site.  It will give you some good pre-reading on the topic and help you get up to speed.