Year 7 Biology
Biology Topics
Cells
Body Systems
4 Steps to Revision
Success
Mind Tricks
Past Papers
Card
Cover
Understand
Posters & Cards
17 March, 2016
Practice
Label the plant and animal cells
What do scientists use to view things that are really small?
What is the definition of diffusion?
Name 2 substances that move into cells.
What is the function of the following?
1.
2.
1.
Nucleus
Name 2 substances that move out of cells.
2.
Cell membrane
1.
3.
Cytoplasm
4.
Cell wall
2.
What is a unicellular organism?
Complete the table:
Specialised
Cell
Red blood
cell
Root hair
cell
Features
Function
Euglena
1.
1. Carry more oxygen
2.
2. Increased surface area
3.
3. Binds to oxygen
1. No chloroplasts
1.
2. Long root hair
2.
Amoeba
What is the purpose of the eyespot in the euglena?
What is the purpose of the flagella in the euglena?
1. Long and thin
1.
2. Connections at each end
2.
Carry impulse over long
distances.
Join to other nerve cells
to transmit messages.
How do amoeba’s move around?
Match the level of organisation to its function and example.
What are antagonistic muscles?
Cell
Group of organs working together
Sperm
Tissue
Group of tissues working together
Muscle
Organ
Group of similar cells working together
Respiratory
Organ System
Group of organ systems working together
Heart
Organism
Building blocks of life
Human
Give an example of an antagonistic muscle pair.
What are the 4 functions of your skeleton?
1.
2.
Lung volume can be measured using a plastic bottle.
3.
How can you increase your lung volume?
4.
Name 2 things that could reduce your lung volume.
1.
2.
Where do joints occur and what holds joints together?
Name two types of joints and give an example of each.
Label the parts of the respiratory system
1.
2.
Complete the table to show what happens when you breathe in and out.
Ribs
Diaphragm
Lungs
Upwards and outwards
Inhale
Composition of air: Oxygen – 20.96%, Carbon dioxide – 0.04%, Nitrogen - 79%
Relaxes (upwards)
Exhale
Composition of air: Oxygen -
, Carbon dioxide -
Contracts (gets
smaller)
, Nitrogen - 79%
Chemistry
Elements, Mixtures
and Compounds
Metals
Stands
For
Something
Year 7 Chemistry
Mind Tricks!
Mnemonics
Association
Loci
01642
800 800
Chunking
Card Cover
By Rote
Please remember different techniques work
better for different people!
17 March, 2016
Match the keyword with its definition.
Element
A substance that cannot be broken down
into other substances.
Compound
The smallest part of an element that can
exist.
Atom
Molecule
Which of the following are elements and which are compounds?
Oxygen (O2)
Carbon dioxide
(CO2)
Hydrogen (H2)
A substance made up of atoms of two or
more elements, strongly joined together.
Neon (Ne)
A group of two or more atoms strongly
joined together.
Sodium chloride (NaCl)
Aluminium oxide (Al2O3)
A mixture contains elements and compounds that are not
chemically joined together.
Complete the table to show the chemical formula, the name of the compound
and the elements in the compound.
Which of the following pictures represent
(i) An atom of an element
(ii) An element
(iii) A compound
(iv) A mixture
Name of compound
Chemical formula
Carbon dioxide
Elements in the
compound
carbon, oxygen
FeO
Sodium chloride
Al2O3
MgO
A molecule of carbon dioxide weighs 44g. The amount of carbon in
the molecule is 12g.
(i) What is the weight of oxygen?
(ii)
What is the proportion of oxygen in the molecule?
(iii) The mass of an oxygen atom is 4g heavier than that of a carbon
atom. Write the chemical formula for carbon dioxide.
Nitrogen dioxide
Water
Hydrogen, oxygen
Physics
Forces
Space
Year 7 Physics
Sonorous
(ding
when
struck)
Malleable (can
be hammered
into shape)
Shiny
Properties
of Metals
Dense
(heavy for
their size)
Good
conductors
of
electricity
Mindmap
17 March, 2016
Ductile (can be
drawn into a
wire)
High
melting
and boiling
point
Good thermal
conductors (good
conductors of
heat)
Concept
Map
A force is a
or a
. Forces make objects
change the direction an object moves in, and change their
3 examples of contact forces are:
,
.
What is Hooke’s Law?
pairs.
Objects can stretch when you exert a force on them. The amount that they
stretch is called the
.
When an object is stretched at some point it will not go back to its original
length. We can say it has reached its
.
3 examples of non-contact forces are:
Forces are measured in
(N) using a
.
Forces always come in pairs. These are called
For example:
Q: How do we not fall through a chair when we sit on it?
A: Solid surfaces are made of
. The bonds
between particles are
when you apply a force. They
back on you.
This provides a
force called the
force.
3 forces which are non-contact forces are:
A field is a special region where something experiences a force. For example a
field
around a magnet, or the
field which keeps us on the Earth.
Weight can be calculated using the following equation:
weight (N) = mass (Kg) x gravitational field strength, g (N/Kg)
What is the difference between weight and mass and what are their units of measurement?
What is friction?
How can we reduce friction?
Use force diagrams to explain the following terms:
2 types of drag forces are:
How can we reduce drag forces on an object?
Balanced
Unbalanced
Equilibrium