Heart Rate and Bunsen Burner

Biology Coursework

Skill: A
- Bunsen Burner
- Measuring Liquid

Skill: B
- Leaf Variation
- Conch

Skill: C
- Heart Rate - Height Variation

Skill: D
-Energy in food
-Toxic response of invertebrates (woodlice)

Skill A
Title: Assembling & using the Bunsen Burner
Aim: To assemble & use the Bunsen Burner
Apparatus:

* Bunsen Burner * Spark Lighter * Tripod Stand * Wire Gauze * Gas Hose * Thermometer (Celsius) * 250 ml beaker

Method:
1. Identify all of the apparatus needed for the burner.
2. Assemble the Bunsen burner apparatus correctly.
3. Half fill the beaker with water.
4. Using the thermometer measure the temperature of the water & record.
5. Using the spark lighter, light the Bunsen burner and adjust the flame.
6. Place the 250ml beaker of water on the Bunsen burner and allow the water to boil.
7. Once the water has boiled, turn off the Bunsen burner. Measure and record the temperature of the water.
8. Disassemble the Bunsen burner apparatus and put away all other materials used. Clean those that require.

Observation:
When the Bunsen burner is lit and the air hole is open the flame is blue. When the air hole is closed the flame is orange. The temperature of the water was also raised after it was heated.

Before | After | 28 c | 96 c |
Result:

Conclusion:
The laboratory Bunsen burner was invented by Robert Wilhelm Bunsen in 1855. Bunsen was a German chemist and teacher. He invented the Bunsen burner for his research in isolating chemical substances , it has a high-intensity, non-luminous flame that does not interfere with the colored flame emitted by chemicals being tested. Peter Desaga was a University of Heidelberg mechanic who built the first Bunsen burner to Bunsen's specifications. Bunsen also invented the. The Bunsen burner is named after Robert Bunsen. It is a common piece of laboratory equipment that produces a single open gas flame that scientist