Mixtures and solutions 4-3

785 views
720 views

Published on

Elements in Products

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
785
On SlideShare
0
From Embeds
0
Number of Embeds
353
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Mixtures and solutions 4-3

  1. 1. Focus Question: What are the most common elements? Elements and Atoms 4-3 Mixtures and Solutions
  2. 2. Review Metals • There are more metals than nonmetals on Earth. • Does the food we eat and the other home products we use have metals in them? • What are the most common elements in the things we buy? • How many different elements are in the things we buy?
  3. 3. The Element Search • Many consumer products have lists of ingredients • Ingredient names often suggest the elements that are in the ingredient • Sodium chloride - Sodium & Chlorine • Common ingredient - Sugar • Chemical formula - C6H12O6 • Carbon, Hydrogen, Oxygen
  4. 4. Elements in Products • Search product packages for listings of elements or ingredients you know include certain elements. • Record your findings on notebook sheet • List product name in the first column • Write the chemical symbol for each element present in the second column • Analyze at least 10 products
  5. 5. Analysis • Complete Part 2 of worksheet • Tally elements on scratch paper • Write symbol for first element in product #1 • Put a tally mark next to it • Repeat for each element in product #1 • Product #2, 3… - if element is new, add to bottom of list and put tally mark next to it. If element is the same as one already on the list, add a tally mark next to the element symbol • Put a code next to the metal elements
  6. 6. Analysis Results • Which products produced the greatest number of identifiable elements? • What was the largest number of elements listed? • What was the largest number of metals listed? • Where did all the elements in the products come from? • What elements do you think are most abundant in the Earth? In the Earth’s crust? • What elements do you think are the most abundant in you?
  7. 7. Homework, Etc… • Read Earth Elements, pg 59-63 + Qs • New Technologies, pg 64-67 + Qs • Ask a Chemist, pg 68-71 (no Qs) • Summary: Elements, pg 72-74 + Qs • I-check 4 on Friday, 11/21 • Unit test on Wednesday, 12/1

×