In this video we show you the steps to conduct this cool and simple science experiment. Follow along at home using a few common items and you too can observe how heat effects liquids.
How Heat Effects Liquids Experiment Video
- Large heat safe glass bowl
- Cooking Oil
- Food Coloring
- Two 2×4 blocks
- Match or Lighter
Step 1 – Begin by filling a large glass bowl with cooking oil.
Step 2 – Next, add between 5-10 drops of food coloring into the oil.
Helpful Tip: Place the drops near the center of the bowl.
Step 3 – Prop the bowl up off the table using two 2×4 blocks.
Step 4 – Light a candle and carefully place it under the bowl. The flame of the candle should touch the bottom of the glass bowl.
Step 5 – Look through the side of the glass bowl and watch carefully to observe what happens.
Helpful Tip: It will likely take 5 minutes before you see anything happen to the liquid/food coloring.
How Does the Experiment Work?
Convection is movement in a gas or liquid in which the warmer parts move up and the colder parts move down.
In our experiment, the heat from the candle was enough to heat the liquid (oil and food coloring) in the bowl. We then observed the movement in the liquid when we watched the drops of food coloring rise from the center of the bowl, move to the outside and then sink back to the bottom.
I hope you enjoyed the experiment. Here’s some printable instructions.