Click below to see a great video book two of our chemists made:
VIDEO book: Atoms and Matter by Tony and Erick
Showing posts with label Atomic Structure. Show all posts
Showing posts with label Atomic Structure. Show all posts
Monday, September 30, 2013
Monday, September 16, 2013
Unit 1 Wrap Up
It was great to meet so many of your families at Open House! We finished Unit 1 - Atomic Structure last week. In periods 1 and 3 we played Chemistry Baseball to review our Unit 1 Objectives!
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Remember that test retakes can be done in room 120 - you must show your GOLD ticket to retake.
Speaking of gold, here's are some shots of our "marbles" lab where we modeled Rutherford's Gold-Foil Experiment to estimate the diameter of a marble by the percentage of "hits" and "misses"!
Sunday, September 8, 2013
Converting Copper...and Back Again!
In Honors Chemistry we explored the idea of Conservation of Matter - the idea that atoms cannot be created or destroyed in chemical reactions.
We first heated pure copper to convert if to copper(II) oxide. Many students were surprised that the mass increased after heating!
Then we reacted the copper(II) oxide with dilute hydrochloric acid to dissolve the copper +2 ions in solution.
(thanks to BigScienceNotebook for some of the images!)
We first heated pure copper to convert if to copper(II) oxide. Many students were surprised that the mass increased after heating!
Then we reacted the copper(II) oxide with dilute hydrochloric acid to dissolve the copper +2 ions in solution.
Finally, we reacted the blue aqueous copper +2 solution with either zinc or aluminum to retrieve the copper again!
(thanks to BigScienceNotebook for some of the images!)Friday, August 23, 2013
Welcome Back! Introducing the Black Box...
Welcome back to school, chemists!
I know I had a great summer working on some curriculum projects and spending time with my family.
In chemistry we are diving right in to scientific experimentation and the nature of the atom. We did a class activity where we explored what was inside of a "Black Box" through indirect experimentation. We did this to model the process that scientists go through when trying to discover the nature of things that are too small to see, touch, and otherwise observe directly.
In period 3 we first tried pouring 99 mL of water into the Black Box and were very surprised when only about 85 mL of a bluish-green, odorless liquid came out!
We then tried adding 99 mL of vinegar into the Black Box and were even more surprised when 88 mL of a brighter green, vinegar-smelling liquid came out!
What do YOU think is inside the Black Box? Below are some of our drawings of what we think might be inside.
I know I had a great summer working on some curriculum projects and spending time with my family.
In chemistry we are diving right in to scientific experimentation and the nature of the atom. We did a class activity where we explored what was inside of a "Black Box" through indirect experimentation. We did this to model the process that scientists go through when trying to discover the nature of things that are too small to see, touch, and otherwise observe directly.
In period 3 we first tried pouring 99 mL of water into the Black Box and were very surprised when only about 85 mL of a bluish-green, odorless liquid came out!
We then tried adding 99 mL of vinegar into the Black Box and were even more surprised when 88 mL of a brighter green, vinegar-smelling liquid came out!
What do YOU think is inside the Black Box? Below are some of our drawings of what we think might be inside.
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