Feeling a bit chilly..

Date: 13th Apr 2018 @ 9:25am

Just before we finished for the Easter break, Oak class worked extremely hard on their final experiment of Great British Science Week! 

Not only did the children carry out the experiment like real scientists but they also presented their results. Below you can see some of the chidlren's reports...

 

Aim - Our aim is to investigate and find out which material preserves the ice cube the best and for the longest period of time. 

Georgina

 

Hypothesis - I think that the tin foil will keep the ice preserved the longest because they use it on athletes to insulate them after a big run. I think the tea towel will be last because it keeps food warm. 

Thomas

Method - To begin with, we prepared and planned our method. We all agreed on five materials to use: fabric, cling-film, tin-foil, carboard and bubble wrap. We all practiced wrapping our materials around a spare ice-cube, then we drew out a table so we could rate how much of the ice-cube had melted. (10 meaning frozen and 0 meaning melted completely). We also appointed a scribe and an observer to check how much of the ice-cube had melted. Not to mention, the alarm clock we used that would be set off every half an hour. 

At last, we began. We check the ice every half an hour and noticed that they gradually started to melt. As they did, we rated each stage of the melting process. 

Soon after lunchtime, the ice-cubes had all melted and all that was left was the materials in a very wet tray. 

Aftter our experiment had ended, we noted down the conditions that might have melted the ice quicker than the rest. 

Emilia 

Fair Testing - We all had the same materials so the expeirment would be fair. If we didn't have the same materials this experiment wouldn't have been fair. We all had the same amount of time as well, so that we weren't leaving the ice-cubes at odd periods of time. Also, we kept all of the ice in the fridge, so the ice wouldn't melt. We all had one tray and five ice-cubes. In addition, all of the ice cubes were the same size. 

Roman 

Conclusion - In this experiment, we found out that bubble wrap, cling film and fabric preserved the ice the longest. First of all, it took three hours and thirty minutes to melt the ice wrapped in those materials, unlike the ice and tin foil, which melted the ice in two hours. 

The reason why I think fabric, bubble wrap and cling film preserved ice the longest is because they are cold, which will keep the ice the same for the longer time. Unlike tin foil, because tin foil is meant to keep people warm. My prediction was right. 

Our experiment wasn't very fair because people touched the ice. The temperature changed during the day so it melted faster in the afternoon than in the morning. Some tables were closer to window and radiators than the others. 

Jack 

 

Woodcocks' Well CE VA Primary School

Church Street, Mow Cop Stoke-on-Trent, ST7 3NQ