Earlier in the year we learned about the three things that fuel a fire: Heat, Fuel and Oxygen. We practised fire drills from our classroom and with the whole school, and we learned that different types of fire need different types of extinguishers (for example, you shouldn't throw water on an electric or oil fire). We had heard a rumour that you could start a fire with a magnifying glass, so today we took some bug viewers with magnifying glasses and tried them out in the sunlight.
First we tried regular white paper, but it was too tough for our little lights! Next we tried some thin newspaper, and we managed to singe it! By moving the beam, we could make patterns. We never made any flames because it was a very small light, but we learned a lot. We learned that regular glasses (spectacles) won't work to focus the beam; We learned that it takes a lot of patience and focus to get the beam just right; And some things like leaves and grass have too much water in them to burn.
We understand how dangerous fires can be, and we were glad to learn the science behind the rumours we had heard. We know we must always respect and be careful around fire, and be cautious when heat, fuel and oxygen are all present together.
4th, 5th and 6th in the prefab!
|Headford Girls NS||
Ms McNamara's Class