Annette Garcia
Scot Wade
9-15-14
Flame Lab
The purpose of this lab was to use different types of powders and a liquid. We saw the different colors it burned at and how fast they were burning.
Procedure:
The first thing that we did was put our safety equipment. One was going to take notes and observe wile the other was going to do the experiment. The first thing we did once we had the equipment, Ms.Lyman poured the powder we were going to but on this glass plate that looked like a big contact lens. The we pord the liquid that was going to make the powder burn, we added about 5 drops of the liquid. The we lit it on fire and we observed what colors the different powders we going to create.
Pre Lab Questions :
What color of light is the lowest in energy?
-Red is the color with the least energy
What color of light is the highest in energy?
- Violet is the light with the highest energy
What color of light is the highest frequency?
- Red has the highest frequency.
What color of light is the lowest frequency?
-red has the lowest frequency
How are electrons “excited”?
it makes it unstable
What does it mean when the electrons are “excited”?
In your own words, write a short explanation of how an electron absorbs energy and re-emits it as light and why different elements have different spectrum.
Data Table:
Scot Wade
9-15-14
Flame Lab
The purpose of this lab was to use different types of powders and a liquid. We saw the different colors it burned at and how fast they were burning.
Procedure:
The first thing that we did was put our safety equipment. One was going to take notes and observe wile the other was going to do the experiment. The first thing we did once we had the equipment, Ms.Lyman poured the powder we were going to but on this glass plate that looked like a big contact lens. The we pord the liquid that was going to make the powder burn, we added about 5 drops of the liquid. The we lit it on fire and we observed what colors the different powders we going to create.
Pre Lab Questions :
What color of light is the lowest in energy?
-Red is the color with the least energy
What color of light is the highest in energy?
- Violet is the light with the highest energy
What color of light is the highest frequency?
- Red has the highest frequency.
What color of light is the lowest frequency?
-red has the lowest frequency
How are electrons “excited”?
it makes it unstable
What does it mean when the electrons are “excited”?
In your own words, write a short explanation of how an electron absorbs energy and re-emits it as light and why different elements have different spectrum.
Data Table:
Discussion theory
I think the amount of the liquid we poured, made it made the flame brighter and last longer.I think the experiment worked well because we got to see what colors came out of different types of powders and liquids.
Post Lab question
1. Why do you think the chemicals have to be heated in the flame first before the colored light is emitted?
I think it has to be heated so it can get the electrons excited and it probably makes the colors brighter.
2. Most salts contain a metal and a non-metal. What type of bonds usually form between a metal and a non-metal?
Ionic bound is usually the bound of a metal and a non metal.
3. What is the definition of a salt in chemistry?
Salt is an Ionic compound
4. What is fire?
Fires is a visible effect of the process of combustion. A special type of chemical reaction.
5. What are the chemicals involved in lighting a match?
Oxidizing agent is a chemical that takes up electrons from other chemicals.
6. What is a chemical reaction?
A chemical reaction is the change of sbstance into a new one that has a different chemical identity.
7. What natural cycles does wildfire have an impact on?
- Animals
- Growth in trees
8. List at least three impacts of wildfire in San Diego.
Cocos Fire
Poinsettia Fire
Deer Springs
I think the amount of the liquid we poured, made it made the flame brighter and last longer.I think the experiment worked well because we got to see what colors came out of different types of powders and liquids.
Post Lab question
1. Why do you think the chemicals have to be heated in the flame first before the colored light is emitted?
I think it has to be heated so it can get the electrons excited and it probably makes the colors brighter.
2. Most salts contain a metal and a non-metal. What type of bonds usually form between a metal and a non-metal?
Ionic bound is usually the bound of a metal and a non metal.
3. What is the definition of a salt in chemistry?
Salt is an Ionic compound
4. What is fire?
Fires is a visible effect of the process of combustion. A special type of chemical reaction.
5. What are the chemicals involved in lighting a match?
Oxidizing agent is a chemical that takes up electrons from other chemicals.
6. What is a chemical reaction?
A chemical reaction is the change of sbstance into a new one that has a different chemical identity.
7. What natural cycles does wildfire have an impact on?
- Animals
- Growth in trees
8. List at least three impacts of wildfire in San Diego.
Cocos Fire
Poinsettia Fire
Deer Springs