Properties of materials
Define the term Flexibility.
How much a material can bend without breaking.
What is an acid between bleach and vinegar?
Vinegar
Define the term distilation
A method of separating two liquids with two boiling points
Who invented the periodic table
Dimitri mendeleevs
Is washing powder a base?
yes
What tempreature does water boil at?
100 degrees
What is an alkali
Something that dissolves in water
Define a mixture
What are the 3 pain groups in the table
Metals, semi metals , nonmetals
Name two items that are made from crude oil
patrol
Plastics
paraffin
candles
What is the melting point of copper
1083 degrees
Name two properties of acids
They taste sour
They feel rough on skin
they corrosive
what is chromatography
Seperating a solution of different colours
How many elements are there
118
What is a noble gas
A gas that does not combine with other elements
Name one property of copper
it is a good conductor of heat
it is flexable
it has a orange/ brown colour
What is litmus paper
An indicator
What is a Bunsen Burner
Uses heat to separate salt from water
What is a atomic number
The number of protons in one atom
Blockage of sewage
What does heat conductivity mean?
How easily a material lets heat move through it
Name two examples of neutrals
water
oil
sugar
cooking oil
salt
How is petrol made
Petrol is made from crude oil
what is the meaning of ductile
Can be drawn into thin wire
Define the term recycling
Using something over and over