The GD Project—Solar Tea Kettle

Hugo Chan 5Z

CONTENTS

PURPOSE

MATERIALS

PROCEDURE

PROCEDURE CONTINUE

OBSERVATIONS

OBSERVATIONS CONTINUE

CONCLUSION

BIG IDEA

PURPOSE

The purpose of this project is to use ways to make the water hot instead of just adding hot water. This project is using the heat of the light to make the water hotter.

MATERIALS

Paint brush

2 glass bottles

Black paint

Lamp (optional if the weather is dim)

2 teabags

Thermometer

Water

PROCEDURE

The first step you have to do is to buy 2 glass bottles and use black paint to paint one of your glass bottle and leave the other one transparent

Then you have to get 2 teabags and put one in each the glass bottles and add an equal amount of cold water in each bottle

If the temperature is dim and no sun is coming up use a lamp (that’s what we did)

Put it a place where the bottle can be shine and wait for 6 hours

PROCEDURE (continue)

While you wait for 6 hours you have to use the thermometer to measure the temperature of the water each 2 hours and see which bottle heats up faster.

OBSERVATIONSRoom Temperature

Clear Bottle Painted Bottle

17 ºC 18.5 ºC 18.5 ºC

15 ºC 17.5 ºC 18.5 ºC

15 ºC 17.5 ºC 18.5 ºC

11:0013:0015:00

Clear water After 4 hours, the tea color comes out

OBSERVATIONS (continue)

Normally, the day is getting hotter towards noon, but today was foggy and rainy. So it got colder.

The room temperature dropped 2ºC from 17ºC to 15ºC.

I used a lamp next to the 2 bottles to replace the sunlight

The tea in the clear bottle only dropped by 1ºC in the first 2 hours and stayed there (17.5ºC) until 4 hours later

The tea in the black bottle maintained the same temperature of 18.5 degrees throughout

CONCLUSION

The tea in the bottles absorbed the heat energy of the lamp so their temperature were higher than the room temperature

The tea in the black bottle was hotter because the black color bottle absorbed more energy

Energy can be converted from light to heat

BIG IDEA

Energy can be converted e.g. Light can be absorbed by solar panels and change it into electricity, wind energy also can be converted into electricity

If everybody use more of energy conversion, we can save the earth and get a greener tomorrow

THANK YOU

FOR WATCHING