Water

Question 1

elemental composition

Answer 1

H
O

Question 2

sources

Answer 2

bottled
tap
fruit veg

Question 3

properties

Answer 3

colourless
odourless
tasteless
boils at 100, freezes at 0
may be solid liquid or vapour
A solvent
absorbs and retains heat
Is neutral : pH:7

Question 4

biological importance

Answer 4

essential part of tissue and fluids
transportation
involved in hydrolysis
distributes heat
controls body temp
removes waste thro kidneys
provides calcium and fluorine
quenches thirst