WRITTEN AND CREATED BY SASHA CHUA 5R

What Makes The Best Insulating Material?

Table Of Contents

Purpose p.1

Hypothesis p.2

Materials I used p.3

Procedure p.4

Observation p.5

Conclusions p.6

Big Idea p.7

Pictures from the experiment p.8 (Since I can’t fit all the pictures in several slides)

Purpose

The purpose of this experiment is to see which material is the warmest and which material is least warm. And which gives the best insolation. And which material can keep the heat in the bottle the longest.

Hypothesis

I think the silver foil will maintain the heat for the longest. Because it is a metallic material. And I always see my helper using silver foil to cover up the hot food. The heat evaporates and the silver foil will keep the heat. Last, I think the newspaper because it is quite thin.

Materials I used

4 glass bottlesA piece of aluminum foilA piece of plastic wrapping paperOne newspaperOne woolen sockOne digital thermometer A measuring cup

Procedure

Step 1: Place all items in ‘’Materials I used’’ on a table.

Step 2:Wrap the silver foil, plastic wrapping paper, newspaper , woolen sock on each identical glass bottles.

As you can see in the picture, I already wrapped all the materials around the bottles.

Procedure

Step 3:Pour 200 ml of hot water in the measuring cup, then pour all of it in the glass wrapped by silver foil.Step 4: Dip the tip of the thermometer in the cup immediately then write down the temperature. Repeat step 3 and step 4 for the other glasses. Record each temperature.

Procedure

Step 5:Record the all temperatures again after 5 minutes. Step 6: Record all temperatures again after 10 minutes Step 7:Record all temperatures again after 20 minutes Step 8: Note down all temperatures notes and then draw a chart to compare the temperatures.

Observation

Materials At the start 5 minutes 10 minutes 20 minutes 30 or Silver Foil 45 C 38.3C 35.9C belowNewspaper 45 C 40.6C 37.6C 32.7C

Woolen Sock 45 C 40C 37.4C 33.6C

Plastic 45 C 40.7C 37.6C 32.7C

Observation

Compare Start 5 mins 10 mins 20 minsSilver Foil Same -6.7 -9.1 30 or below

Newspaper Same -4.4 -7.4 -12.3Woolen Sock Same -5 -7.6 -11.4Plastic Same -4.3 -7.4 -12.3

Conclusions

In the experiment, by looking at this chart I found out that my hypothesis was wrong. Woolen sock was the best insulator not the silver foil. I didn’t think wool would keep the heat the longest because it has holes. And what astonished me that was last was the silver foil.

Big Idea

I have learned that different materials hold heat at a different amount of time. I have also learned that you must use the right material for a certain heat, hot or cold.

Pictures From The Experiment

Thanks for watching! And I hope you all learned something from my experiment.