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Water and heat

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by

Harvey Buckle

on 25 November 2016

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Transcript of Water and heat

Aim
To know the role of water in body heat loss
To know the ways in which heat can be lost from the body
To know the principles of static electricity
Starter
Rub the balloon on your head and stick it to the wall
Body heat loss
This happens three ways::

1. Radiation
2. Convection
3. Conduction
Static electricity
Objects can be positively charged, negatively charged or neutral (no charge).
A substance that gains electrons becomes negatively charged, while a substance that loses electrons becomes positively charged.
When a charged object comes near to another object they will either attract or repel each other.
If the charges are the same - they repel
If the charges are opposite - they attract
If one is charged and the other is not - they attract

Water and heat
and static

Now...
Write a short description of how each occur
Full transcript