1. Technicolor atoms
Flame Tests

2. Chem Catalyst
What makes different fireworks produce different color? Does the color of the material that makes up the fireworks the same color of the sparks it creates?

3. Main goals

4. Technicolor lab Safety for chemicals and fire What will you wear?
What safety features will you use or know how to use for this lab

5. Flame lab

6. Materials Write into comp book Bunsen burner Set of tongs
Nichrome wire (what do you think this wire is made out of?
Copper wire, penny
Set of solutions in test tubes
Test tube racks

7. Solutions
Each solution has a piece of nichrome wire, do not mix them up!!!
Sodium carbonate
Potassium Nitrate
Copper (II) nitrate
Strontium Nitrate
Potassium chloride
Sodium Chloride
Copper sulfate
Strontium chloride
Copper (II) Chloride
Potassium sulfate
Sodium Nitrate

8. Procedure
Form groups
Create a chart that has the name of the solution, chemical formula, and what color the substance showed when heated
Make sure there are 2 extra rows at the end to record your observations about the copper wire and penny

9. Procedure
4. Use the tongs to put the wet tip of the nichrome wire into the flame. Start with the left most test-tube
5. Take turns within the group
6. Record the color obtained, be descriptive, write description in chart
7. Repeat with the other test-tubes, in order
8. After test tubes, use tongs to place the copper objects briefly into the flames. Observe and record results. Place copper items in water after using.

10. Analysis
Group the substances based on the color of the flame produced. What patterns do you notice in the groupings?
Can a flame test be used to identify a metal atom in a compound? Why or why not? What about a nonmetal atom?
What part of the atom do you believe causes the change in color? Why?