| This science project is literally cool as it uses cold | | | | your eyes with protective goggles. This balloon will pop |
| water or room temperature H20 and some balloons to | | | | and does so very quickly. Relight the candle with |
| complete the experiment. In this demonstration you will | | | | another match. Fill up the other balloon with water. It |
| use a balloon and expose it to the heat of a candle | | | | does not matter what temperature the water is. Tie |
| flame. | | | | the end of this water filled balloon. |
| This project was done by a group of girls and they | | | | Hold this over the candle flame. What is happening? |
| loved the activity, however, it can be done by a 7th | | | | You will notice the balloon does not pop like the other |
| grade student or as an 8th grade science experiment. | | | | balloon. The flame is not hurting the balloon skin. Why |
| You can call it a middle school demonstration since | | | | does the balloon not pop? The water is absorbing the |
| both grades should achieve success with this project. | | | | heat and doing so very quickly that it avoids damaging |
| Before you do this you will need the supervision of a | | | | the balloon or melting it in any way. You will notice |
| parent or adult and they may actually want to hold the | | | | some black debris on the outside of the balloon. This is |
| balloon over the flame and light the matches and | | | | just carbon emitted from the candle flame burning. It |
| candles for you. Please use caution when using | | | | can easily be wiped off with a damp paper towel. |
| matches and candles. | | | | Here is an explanation of why the water keeps the |
| The materials needed for the demonstration: | | | | second balloon from popping. It is protecting the balloon |
| · 2 balloons | | | | and keeping it cool enough to not allow it to break. Do |
| · Water | | | | a little research before you demonstrate this to your |
| · Matches | | | | audience about the actual heat coming from the flame |
| · A tapered candle in a holder | | | | and why and how the water can absorb the heat |
| Here are the Instructions for the experiment: | | | | even though the balloon is the actual material touching |
| Light the candle with the match. | | | | the surface of the candle flame. |
| Blow up the first balloon and tie the end. Hold the | | | | This is another cool science project idea for your next |
| balloon over the candle flame. You may want to cover | | | | fair experiment. |