Heat Activity – Convection
Activity Author
Shubhangi Mishra
Duration
30-40 mins
Objective: Key Core Life Skill to be developed
Critical thinking, Problem Solving
Objective: Key Learning Domains to be developed
Remember, Understand, Application
Implemented this in classroom
Yes
Objectives to be achieved
1. Explain the students the process of convection with this experiment2. Make them understand that heat is a form of energy3. Understand the concept of continual convection current, whereby the warming water rises and the cooling water falls.
Underlying Concept behind this activity
How convection currents work with the heat of the melting candle getting absorbed by water, leaves an impact on the outer surface of the candle, resulting in the candle's strange transformation.
Resources required for conducting the activity
• Taper candle
• Large bowl
• Duct tape
• Cigarette lighter or candle
• Cold water
• Scissors
Class Activity Details
Step 1: Cut off four 4” lengths of duct tape to fasten the candle to the bottom of the bowl.
Step2: Fill the bowl with water just to the top of the candle. Be careful not to submerge the wick!
Step3: Light the candle!
Step4: Encourage students to observe what happens. The candle should burn all the way to the bottom of the bowl, leaving a thin tube of wax.
Practice worksheets
Uploaded File
Brainstorming questions asked in class
Why did the candle burn differently when water was added to the bowl?
What do you think was happening to the water in the bowl?
Why do you think it was getting warm?
Do you think water is good conductor of heat in comparison to metals?
Why do you feel cold when you touch metal?
Evaluation parameters to assess the understanding of the students
Accurate, Clearly explained, Knowledgeable, Precise
Impromptu changes made if any during activity, reasons
Any suggestions for other teachers while implementing this activity in classroom.
Would suggest if teachers do this activity in class it will definitely create interest in class for rest of the chapter
