Cooking pans can be made of copper because it is a good conductor of .............................., while electrical wires can be made of copper because it is a good conductor of ..............................
heat - electricity
15
The body of cooking pans can be made of ........................., while its handles is made of ..................... or plastic
copper - wood
15
(write the scientific term) It is a light gas which is used in filling balloons and blimps
helium
15
(write the scientific term) The ability of materials to transfer heat and conduct electricity
conduction
15
(write the scientific term) It is a measure of the amount of matter
mass
15
(what happens to ) An iron nail and a plastic spoon if they are put close to a magnet
The magnet will attract the iron nail, but it will not attract the plastic spoon.
15
(give reason) When the particles of a matter move quickly, its temperature increases
Because the quickly moving particles produce more heat energy.