<Tr> <Th> Material </Th> <Th> Specific Gravity </Th> </Tr> <Tr> <Td> Balsa wood </Td> <Td> 0.2 </Td> </Tr> <Tr> <Td> Oak wood </Td> <Td> 0.75 </Td> </Tr> <Tr> <Td> Ethanol </Td> <Td> 0.78 </Td> </Tr>

Specific gravity of water as a function of temperature