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JC Science
JC Science

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JC Science

How organs of the circulatory system work or interact with each other and with other systems.

Organs of the circulatory system working together:

Heart and Arteries: Arteries are the blood vessels that carry blood away from the heart and carry it towards the organs of the body.

Heart and veins: Veins are the blood vessels that carry blood away from the organs of the body and deliver it back to the heart.

Arteries and capillaries: Arteries are larger blood vessels, too big to get near individual cells in the body. The arteries break up into smaller blood vessels called capillaries which can get very close to the cells.

Veins and capillaries: When capillaries coming away from... (More)


Iodine is most commonly used in science to test the presence of starch in food. In water, it is an orangish\brown colour but if you put it on a food that contains starch it will turn a darkblue\black colour. For example, if you put it on bread, it will turn darkblue\black.