Forming Solids - PowerPoint PPT Presentation

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Forming Solids

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Forming Solids Lesson 2 Metals are Shiny Good Conductors of heat & electricity Solid at room temperature. Most of the periodic table Ductile Can be pulled into a ... – PowerPoint PPT presentation

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Title: Forming Solids


1
Forming Solids
  • Lesson 2

2
Metals are
  • Shiny
  • Good Conductors of heat electricity
  • Solid at room temperature.
  • Most of the periodic table
  • Ductile Can be pulled into a wire
  • Malleable Can be hammered or rolled into
    sheets.

3
Metallic Bonds
  • Metals bonds form when metals share their pooled
    electrons.
  • Metals can bond with the same element or with
    other metals.
  • Electrons move freely throughout the metal
  • A sea of electrons

4
Crystals
  • Crystal is a regular, repeating pattern of atoms,
    ion, or molecules.
  • Snowflakes, diamonds, salt are examples.
  • Each crystal has a unit cell.

5
Unit Cells
6
Polymers
  • Polymers are covalent compounds made up of many
    small, repeating units in a chain.
  • Poly means many, -mer means parts
  • DNA is a polymer.
  • Monomers is the basic unit of a polymer.

7
Polymer types
  • Natural
  • Synthetic (Man-made)
  • Do these look familiar?
  • DNA
  • Proteins
  • Carbohydrates (sugars)
  • Fats

8
(No Transcript)
9
How to make a crystals
  • Watch Short You Tube Demo
  • Fun recipes you can do at home!

10
How to make a polymer Silly Putty!
  • Be careful with borax, it is toxic wear gloves
    and dont breathe in fumes!
  • In one bowl, mix ¼ c. of borax and 1 c. of water.
    Stir
  • In another bowl, mix ¼ c. Elmers glue ¼ c.
    water some food coloring. Stir.
  • Now mix the two together. It will be slimy at
    first, then will solidify into silly putty.
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