1. How many different materials are there and what are elements made from?
Lesson 1

2. How many different materials are there and what are elements made from?
Aims:
To know what an element is
To be able to use diagrams to represent the atoms in elements and non elements

3. How many different substances are there?
can you think of?

4. All substances are made of atoms
All substances are made of very tiny particles called atoms. Many substances are made up of different types of atoms.
hydrogen and oxygen atoms
carbon and hydrogen atoms
iron, aluminium, silicon, oxygen and boron atoms
carbon, nitrogen, hydrogen, oxygen and sulphur atoms

5. What is an element? carbon helium copper
All substances are made of very tiny particles called atoms.
There are about one hundred substances that are made up of just one type of atom. These are the elements.
carbon
helium
copper
The elements are the simplest substances in the universe.
The elements are the building blocks of all other substances.

6. Atoms in elements
An element is a substance made up of only one type of atom.
Copper is an
element made up of
copper atoms only.
Carbon is an
element made up of
carbon atoms only.
Helium is an
element made up of
helium atoms only.

7. Elements
Everything in the universe is made from a small number of building blocks
These chemical building blocks are called elements
About 100 of them
Listed in the periodic table of elements
Have only 1 type of atom
Can not be split into smaller substances

8. Elements
Elements- the simplest chemical. They make up all other chemicals
Atom- the smallest particles that make up chemicals. Each element has its own type of atom

9. Elements Elements like silver and gold are found in the ground
Rare
Other elements can be obtained by heating rock e.g. copper and tin
Most elements are metals but some are non-metals
It is the way that the elements are joined together that makes each material different

10. Identify the elements B A D C

11. Identify the elements Cu Cu Cu Cu C Fe C Fe Cu Cu Cu Cu C Fe C Fe AuSn Cu Cu Au Au Au Au Cu Cu Sn Cu

12. Introducing chemical symbols
A standard set of symbols is used to represent elements:
The symbol for many of the more common elements uses just the first letter of the name.
hydrogen
H =
oxygen
O =
carbon
C =
nitrogen
N =
fluorine
F =
iodine
I =
Others elements have the first two letters.
Some of the symbols are not always as you might expect.
lithium
Li =
lead
Pb =
aluminium
Al =
gold
Au =
helium
He =
silver
Ag =

13. How to write symbols for elements
Two important rules should be followed when writing the symbols of elements so that there is no confusion.
1. The first letter of an element’s symbol is always a capital letter.
e.g. N (not n) for nitrogen
2. If there are two letters in the element’s symbol, the second letter is always a small letter.
e.g. Co (not CO) for cobalt
No, Watson! It was
carbon monoxide
poisoning – not cobalt.

15. The Story of ‘The Kid’

16. Spelling with symbols activity
Write down the symbols for each element listed and use these to spell out a word that matches the clue.
Board game: carbon, helium, two sulphurs
Relative: sulphur, oxygen, nitrogen
Fuel: carbon, oxygen, aluminium
Group of fish: sulphur, hydrogen, oxygen, aluminium
For the rubbish: boron, iodine, nitrogen
CHeSS
SON
COAl
SHOAl
BIN