Transcript Year 6 Revision booklet

Year 6 Revision booklet
• One sheet per topic
• Mind map, note or questionnaire type form
• Some links to the internet
• For a general revision site go to:
• http://www.bbc.co.uk/schools/ks2bitesize/science/
Year 6 Revision booklet
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6A
Polar bear adaptations
Plants make oxygen
and use carbon
dioxide
Streamlined
body for
strong
swimming
Animals make
carbon dioxide and
use oxygen
Thick White
Fur for
camouflage
Interdependence
& Adaptation
Plants and animals
are interdependent
Sharp Claws for
digging burrows
and catching fish
and warmth
Adapting to the environment
increases an organisms chance
of survival
A Food Chain shows what eats what.
A Food Web is
many
connected food
chains
(The arrow shows into whose mouth the food goes.)
Grass  RabbitFox
Year 6 Revision booklet
Plants need :
Oxygen, heat and water to
germinate,
to grow they also need light
(to make their food) and
nutrients for strong growth
2
6B
All Micro-organisms do
Yeast is a
micro-organism.
MRSGREN
(Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition)
For yeast to perform
its life processes, it
needs water, warmth
and
food (sugar).
We make dough rise
by the carbon
dioxide produced by
when yeast respires.
Micro-Organisms
Microbes or Germs
(bacteria & viruses)
Microbes are
tiny! 10 or 20
would fit onto
the very tip of a
needle!
Good microbes:
Make beer, wine,
cheese & yoghurt
Word List:
Bad microbes
Bacteria- Tiny living organism
Virus- Tiny organism which causes
smallpox (which was cured by a
Edward Jenner using a vaccination)
Germ- General term for bacteria or
Virus
Cause flu, tooth
decay, chickenpox
and food poisoning
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6C
More About Dissolving
Factors which affect how solids dissolve
•Reduce grain size
•Stir
•Increase Temp’
Making a salt (solute) & water
(solvent) mixture by dissolving
table salt (sodium chloride) in
water. The result is a clear
colourless SOLUTION.
A copper sulphate (solute)
& water (solvent) mixture is
a clear blue SOLUTION.
INCREASE
INCREASE
SPEED
AMOUNT
Y
Y
Y
N
N
Y
Stir, grains of sugar
into hot tea for a quick
sweet drink!
•Dissolving is a Physical (Reversible) Change
•It creates a mixture. You can separate mixtures using:
•Coloured dyes- Chromatography (each colour separated)
•Insoluble solids/ liquid – Filtration (gets the solid)
Sand is insoluble in water and can be
removed from water by filtration.
To separate salt & sand mixture:
•Soluble solids/ liquid – Evaporation (gets the solid)
•Soluble solids/ liquid – Distillation (gets the liquid)
•Many liquids mixed – Fractional distillation (eg Crude oil)
1.
Add water to mixture – salt
dissolves
2.
Filter –removes insoluble sand
To see
3.
Evaporate – removes water
http://www.footprints-science.co.uk/flash/states.swf
4.
White salt is left behind!
how
changes of state occur, go to:
Year 6 Revision booklet
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6D
Reversible & Irreversible Changes
Chemical (Irreversible) Changes
Physical (Reversible) Changes
Burning or Combustion
Evaporation: Liquid  Gas
Cooking
Condensation: Gas  Liquid
Neutralising (vinegar & bicarbonate)
Melting: Solid  Liquid
A process making new substances with new
properties ( e.g. Solid + Liquid makes a gas,
or 2 liquids mix and change colour!)
Freezing: Liquid  Solid
Subliming: Solid  Gas
Subliming: Gas Solid
Dissolving solid into a liquid
Word List
Heat
REVERSIBLE: Able to be changed back to the way it was before
IRREVERSIBLE: Cannot be changed back to the way it w as before.
BURNING: To set something on fire (combustion). This is also
oxidation as oxygen from the air is necessary for burning.
DISSOLVING: When a solid substance ‘disappears’ in a liquid
SEPARATION: A method used to sort materials which have
somehow become mixed up.
Year 6 Revision booklet
The Fire
Triangle
Fuel
Oxyge
n
Fire is an irreversible change
5
Forces in Action
6E
Friction
Thrust
Air resistance
Nessie
Thrust = Friction = Constant speed
Thrust > Friction = Speeding up
Weight
Heavy ocean liners float
Thrust < Friction = Slowing Down because the upthrust from
the weight of water
displaced equals the weight
Forces are measured of the liner!
Weight
Graph showing how Nessie’s speed changes when she
falls out of a plane reaches a constant speed (220m/s)
and then her parachute opens so she slows down to
30m/s!
250
S pe e d
(m/ s)
200
150
100
50
in Newtons
Forces can only:
1 Change a thing’s direction
2 Change a thing’s shape
3 Slow a thing down
4 Speed a thing up
Time (secs)
13
12
10
8
6
4
2
0
0
Speed (m/s)
Upthrust
Year 6 Revision booklet
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6F
How We See Things
The sun is the major
LIGHT SOURCE .
Transparent
Light reflects best of shiny smooth
objects like a mirror.
In a mirror left appears right and
vice versa. This is LATERAL
INVERSION
ABC
B
Other light sources are
light bulbs and fire.
A
Translucent
Periscopes enable you to
see above or below and uses
two mirrors at 45°
Mirrors
at 45°
Opaque
Shadows change as the object is moved nearer to or farther from the screen.
Near the screen – dark, sharp shadows
Near the candle – light fuzzy shadow
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6G
Electricity: Changing Circuits
+
A Series Circuit
A
‘A’ is smaller
Series Circuit
Parallel Circuit
•One break in the circuit and the
whole circuit stops working.
•More batteries mean brighter
bulbs.
•Batteries last longer.
•One break may not stop the
whole circuit from working.
•All the bulbs are the same
better brightness.
•Batteries run out more quickly.
•You can turn the bulbs off
separately.
+
A Parallel Circuit
‘A’ is bigger
Know your symbols
A
Cells , Bulb, Ammeter
Voltmeter, Switch (open), (closed)
Resistor, Variable Resistor, Fuse
Diode
Electricity is a flow of charge
To see how you can affect the brightness of bulbs in a circuit go to:
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/changing_circuits.shtml
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6G
Enquiry into Environmental Issues
How do I frame a question?
What is a fair test?
Why do I repeat an experiment several times?
What measurements should I make?
How should I record my results (table or graph)
What type of graph (bar chart or line graph)?
A Bar Chart
A Line Graph
Discontinuous variable
Continuous variable
120
14
12
100
10
80
8
Blackbird
Sparrow
Blue tit
6
4
60
Temperature
40
20
2
0
0
6F
6N
6W
-20
1 2 3 4 5 6 7 8 9 10
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