Science part of the atom element compound.pdf

Science

1. Pure substances 10-Jan-25
We are learning to understand what is meant by purity
New Key words
atom
element
compound
molecule
pure
Starter:
Draw a picture for each of
the following
1.Atom
2.Element
3.Compound
4.Symbol

2. Atoms, elements and compounds 10-Jan-25
We are learning to understand what is meant by purity
Starter task: Look up and
translate these words. Write
the word and the translation
in your book
New Key words
atom
element
compound
molecule
pure
1.regular arrangement
2.random arrangement
3. fixed shape
4.irregular shape
5.fixed volume

3. Task 1: Solid, liquid, gas particle model
Task 2: Describing solid, liquid and gases
SOLID LIQUID GAS
regular arrangement, random arrangement, fixed shape, irregular shape, fixed volume, no fixed volume, no fixed shape,
can flow, take the shape of the container
SOLID LIQUID GAS

4. Starter – Recap of particles
Task 1
Draw particle diagrams of
how a solid, liquid and gas
looks. Use no more than 6
particles for each
Task 2
Sketch a table like below and add
the statements to the correct
column
Regular arrangement, random
arrangement, fixed shape, irregular
shape, fixed volume, no fixed
volume, no fixed shape, can flow,
take the shape of the container
Solid Liquid Gas
Task 3
Describe and name the
process of changing ice to
steam.

5. Starter – Recap of particles
Task 1
Draw particle diagrams of
how a solid, liquid and gas
looks. Use no more than 9
particles for each

6. Starter – Recap of particles
Task 2
Sketch a table like below and add
the statements to the correct
column
Regular arrangement, random
arrangement, fixed shape, irregular
shape, fixed volume, no fixed
volume, no fixed shape, can flow,
take the shape of the container,
dense, not dense
Solid Liquid Gas

7. Starter – Recap of particles
Solid Liquid Gas
Task 3
Describe and name the
process of changing ice to
steam.

8. Smallest/largest unit of life/unit of matter

can see/cannot see protons/protron type/types
periodic table/period table symbol/symbolic
chemically/physically property/properties

9. Smallest/largest unit of life/unit of matter

can see/cannot see protons/protron type/types
periodic table/period table symbol/symbolic
chemically/physically property/properties

10. Pure substances 10-Jan-25
We are learning to understand what is meant by purity
New Key words
atom
element
compound
molecule
pure
Starter:
Draw a picture for each of
the following
1.Atom
2.Element
3.Compound
4.Symbol

11. Atoms,
elements and
compounds
Task 1:
Task 2:
Extra: Is air an atom, element or compound? Explain (5 marks)
1. All matter is made up of tiny particles called _________
Atoms, Elements, and Compounds: Understanding the Basics
In science, it is important to know about atoms, elements, and
compounds. These three terms are related but mean different
things. Atoms
An atom is the smallest unit of matter. Everything around us is
made of atoms. You can think of an atom like a tiny building
block. Atoms are so small that we cannot see them with our
eyes. Each atom has a center called the nucleus, which
contains particles called protons and neutrons. Surrounding
the nucleus are even smaller particles called electrons.
Example: A hydrogen atom is a simple atom. It has one proton
and one electron. It is the smallest and lightest atom.
Elements
An element is a substance that is made up of only one type of
atom. Elements are the basic materials of everything in the
universe. Each element has a unique name and a symbol.
There are many elements, and they are listed in the periodic
table.
Example: Oxygen is an element that is essential for life. It has
the symbol "O." When you breathe in, you take in oxygen from
the air.
Compounds
A compound is a substance that is made up of two or more
different types of atoms that are chemically combined. This
means that the atoms chemcially join together in a specific
way to form a new substance. Compounds have different
properties than the elements that make them up.
Example: Water is a compound made of two hydrogen atoms
and one oxygen atom. Its chemical formula is H₂O. Even
though it contains hydrogen and oxygen, water has different
properties than these elements.
Summary
To sum up:
•Atoms are the smallest building blocks of matter.
•Elements are pure substances made of only one type of
atom.
•Compounds are made of two or more different types of
atoms that are chemically joined together.
Question 1
What is the smallest unit of
matter?
•A) Element
•B) Compound
•C) Atom
•D) Molecule
Question 2
Which of the following is an
example of an element?
•A) Water (H₂O)
•B) Hydrogen (H)
•C) Carbon Dioxide (CO₂)
•D) Salt (NaCl)
Question 3
What do we call a substance made of two or
more different types of atoms that are
chemically combined?
•A) Atom
•B) Element
•C) Compound
•D) Mixture
Question 4
Which of the following is a
compound?
•A) Oxygen (O)
•B) Helium (He)
•C) Water (H₂O)
•D) Gold (Au)
2. An _______ is a pure substance that consists of only one kind of atom.
3. When two or more _________ atoms chemically join together, they form a
compound.
4. The periodic table lists all known _________ and their symbols.
5. water is a compound made from hydrogen and ____________ atoms.
Complete the sentences using the words from the key word bank:
compound, atoms, element, elements, oxygen, different, same

12. An atom is the smallest particle that can
exist on its own.
Atoms are tiny. A single atom is about 0.00000001 cm wide.
Gold is made up of
gold atoms.
In the late 20th century, electron microscopes
were invented. These very powerful microscopes
have allowed scientists to look at atoms.

13. Vocabulary Image
Definition Application !
atom
原子
The smallest part of an
element that can exist.
Pure gold contains only
atoms of gold.

14. Element Element Element
Not an elementNot an elementNot an element
Discuss – what you think the definition of an element is

15. Vocabulary Image
Definition Application !
element
元素
A substance that only
contains one type of
atom.
Copper and oxygen are
examples of elements.

16. gold Silver
Element 1
Element 2
iron
Element 3
copper
Element 4

17. Is this an element?

18. Is this an element?

19. Is this an element?

20. Is this an element?

21. Is this an element?

22. Is this an element?

23. Checkpoint
Task 1: Copy and complete the sentences
All substances are made of _ _ _ _ _.
An atom is the _ _ _ _ _ _ _ _ particle that can exist on its own.
Some substances are made up of only _ _ _ type of atom and
are called _ _ _ _ _ _ _ _.
Task 2: Draw particle
diagrams that shows;
a)an element
b)one that does not
show an element
(non-example)
Task 3: Suggest what a molecule is?
Describe and draw what it could
look like
Can you name some examples?

24. Checkpoint
Task 1: Copy and complete the sentences
All substances are made of _ _ _ _ _.
An atom is the _ _ _ _ _ _ _ _ particle that can exist on its own.
Some substances are made up of only _ _ _ type of atom and
are called _ _ _ _ _ _ _ _.
Task 2: Draw particle
diagrams that shows;
a)an element
b)one that does not
show an element
(non-example)
Task 3: Suggest what a molecule is?
Describe and draw what it could
look like
Can you name some examples?

25. Checkpoint
Task 1: Copy and complete the sentences
All substances are made of ATOMS.
An atom is the SMALLEST particle that can exist on its own.
Some substances are made up of only ONE type of atom and
are called ELEMENTS.
Task 2: Draw particle
diagrams that shows;
a)an element
b)one that does not
show an element
(non-example)
Task 3: Suggest what a molecule is?
Describe and draw what it could look like
Can you name some examples?
EXTRA→ A pure substance can be an
element or a molecule. Justify (6 marks)

26. molecule Not a molecule molecule
Molecule Not a molecule Molecule
Discuss – what you think the definition of a molecule is

27. Molecules
In some elements, the atoms are joined in groups of two or more. A
particle containing atoms grouped in this way is called a molecule.
O
2
H
2
N
2

28. Not a compoundNot a compoundNot a compound
compound compound compound
Discuss – what you think the definition of a compound is

29. Vocabulary Image
Definition Application !
compound
化合物
Pure substances made up
of atoms of two or more
elements, strongly joined
together.
Water is a compound
made up of hydrogen
and oxygen.

30. Compounds
•M
•The atoms become bonded to form
molecules
•A compound is 2 or more atoms chemically
bonded together

31. A compound is made when atoms of different elements react and join
together.
For example, water is produced from the chemical reaction between
hydrogen and oxygen.
M – water
Two hydrogen molecules react with one oxygen molecule to produce
two molecules of water.
+
HH
HH
OO
hydrogen oxygen water+
Why does water have different properties to its elements?

32. Properties of a compound – carbon dioxide
A compound has different properties to the elements from which it is made because
the atoms are joined differently.
Black solid
used as fuel.
Colourless gas in
which many
substances burn.
Colourless gas used in
fizzy drinks and fire
extinguishers.
+
+OOC
carbon oxygen carbon dioxide+

33. A compound is not a mixture
The atoms in water, the
compound made when
hydrogen and oxygen react
and their atoms become
chemically joined to each
other, look like this…
The atoms in a mixture of
hydrogen gas and oxygen
gas, which have not reacted
with each other, look like this…

34. What type of substance
does each picture show?
1.element
2.compound
3.mixture of compounds
4.mixture of elements
5.molecules of elements
A
C
D
E
B

35. What type of substance
does each picture show?
1.element
2.compound
3.mixture of compounds
4.mixture of elements
5.molecules of elements
A
C
D
E
B

36. What type of substance
does each picture show?
1.element
2.compound
3.mixture of compounds
4.mixture of elements
5.molecules of elements
A
C
D
E
B

37. Copy and complete the missing words. Words can only be
used once.
Everything around us is made from ____________.
Elements can _______ together to make
_____________. A molecule is when ______ or
more atoms joined together. The chemical
formula of a compound shows you the numbers
of ______ of different elements in the
compound. The diagram shows a __________ of
______________ . It is made from two atoms of
hydrogen joined to atom of ______________ . The
formula for water is __________ .
H
2O
two
elements
water
molecule
join
compounds
atoms
molecules
oxygen
O
H H

38. Copy and complete the missing words. Words can only be
used once.
Everything around us is made from
elements/atoms. Elements can join together to
make molecules. A molecule is when two or
more atoms joined together. The chemical
formula of a compound shows you the numbers
of atoms of different elements in the
compound. The diagram shows a molecule of
water . It is made from two atoms of hydrogen
joined to atom of oxygen. The formula for water
is H
2O.
H
2O
two
elements
water
molecule
join
compounds
atoms
molecules
oxygen
O
H H

39. Help sheet