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-Tensile strenght: resistance to stretching.
-Compressive strenght: resistance to being crushed.
-Flexural strenght: resistance to bending.
-Hardness: this can vary a lot it depends on the type of the wood, the structure and the cutting direction.(Wood isn´t very hard)
-Toughness: wood is though so is used for sports equipments.
-Thermal and electricity conductivity: in wood is very low, so it´s a good insulator of heat  and electricicity.
-Sound conductivy : has a  good sound conductivity
-Colour:  has  different colours
-Density: wood is a ligth material. Has a lower  density  than water which means that it floats.

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Man-made:
-Plywood: form by an thin wood layer. This type of wood is more strong, uniforme and stable
-Chipboard: is obtained from wood chips that are mixed wit resin and then pressed.
Wood derivatives:
-Paper: it is obtained by forming a paste out of wood and plants fibres that is mashed, pressed and dried. It isn´t stong and breaks easily.
-Cardboard: is made by compressing several layers of paper while it is wet to thicken so it produces a heavier texture. Is thicker than paper.
-Cork: is obtained from the bark of oak. It is waterpoof, lightweight and a good insulator of electricity.

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Ferrous metals:
Depends on the percentage of cabon in the alloy.
-Iron: if the percentage of carbon in tha alloy is less than 0.1% . Soft, ductile, malleable and brittle.
-Steel: made mainly from ironwith 0.1% to 2%of carbon. Hard and resistant.
-Cast iron: made from iron and 2%to 6.67% carbon.
Non-ferrous metals:
-Copper: is a very good conductorof heat nad electricity. It is resistant to corrosion. It is ductile, malleable and easy to solder.
-Tin: is resistant to corrision, ductile and malleable when cold. It is easy to work with it and to melt. It is used as a filler metal for soft soldering.
-Aluminium: it´s very light, resistant to corrosion and a good conductor. It´s ductile , malleable, easy to shape and non-toxic.
-Zinc: it´s malleable, ductile and a good conductor. It´s highly resistant to corrosion and rust.