Br ewing TeaBr ewing Tea wit hwit h

Solar Solar PowerPower

The Purpose and the HypothesesThe Purpose and the Hypotheses

The purpose of this experiment is to test which color absorbs sunlight more . My hypotheses is that the tea inside the bottle painted black will brew faster.

MaterialsMaterials

• 2 bottles the same size 2 bottles the same size • 2 tea bags2 tea bags• Some cold waterSome cold water• A sunny dayA sunny day• Ink and brushInk and brush

ProcedureProcedure

• Take two bottles of the same size, then paint Take two bottles of the same size, then paint one of them black.one of them black.

• Pour cold water into each bottle, then put a Pour cold water into each bottle, then put a tea bag into each.tea bag into each.

• Set the two bottles on a sunny windowsill, and Set the two bottles on a sunny windowsill, and make sure that the two bottles have equal make sure that the two bottles have equal sunlight shining on them.sunlight shining on them.

• Take a look at the water in each bottle every 2 Take a look at the water in each bottle every 2 hours to see which bottle is brewing tea faster. hours to see which bottle is brewing tea faster. After 6 hours, take a look at the bottles to see After 6 hours, take a look at the bottles to see which tea has been brewed better.which tea has been brewed better.

Observations taken During the Observations taken During the ExperimentExperiment

• After 4 minutes, it can be seen that the tea After 4 minutes, it can be seen that the tea bag inside the clear bottle is already starting bag inside the clear bottle is already starting to color the water.to color the water.

• After a while , the sunlight moves, so the After a while , the sunlight moves, so the bottles are moved.bottles are moved.

• It seems that the clear bottle is brewing It seems that the clear bottle is brewing faster, but we don’t know yet……faster, but we don’t know yet……

• After 2 hours, the differences between the After 2 hours, the differences between the tea in the clear bottle and the tea in the tea in the clear bottle and the tea in the black bottle are not very clear.black bottle are not very clear.

• After 6 hours, the differences can be seen After 6 hours, the differences can be seen quite clearly.quite clearly.

PicturesPictures

Before the experiment

During the experiment

After the experiment

Conc lus ionConc lus ion

After 6 hours, it is clearly seen that the After 6 hours, it is clearly seen that the tea in the black bottle is deeper colored tea in the black bottle is deeper colored than of the clear bottle.than of the clear bottle.

My hypotheses was correct, and we can My hypotheses was correct, and we can see from this experiment that black see from this experiment that black absorbs light better than other colors.absorbs light better than other colors.

The BIG ideaThe BIG idea

• After the experiment , I have learned that black absorbs light better After the experiment , I have learned that black absorbs light better than any other color, because the rays of the sunlight has every color than any other color, because the rays of the sunlight has every color in it, and black=every color mixed together.in it, and black=every color mixed together.

• This knowledge is useful, because we can use it in our everyday lives. This knowledge is useful, because we can use it in our everyday lives. For example, we can wear black colored clothing when it is cold, so we For example, we can wear black colored clothing when it is cold, so we can feel warm. In Summer, don’t wear black clothing unless you want can feel warm. In Summer, don’t wear black clothing unless you want very much to be roasted alive.very much to be roasted alive.

Thank You And Good Bye

The End