Download Year 8 PIG

Year 8
PIG
Name 3 properties of metals
Name 3 properties of metals
• Shiny, malleable, conductor of heat and
electricity
If a zinc melts at 35⁰C, what state is it
at 20⁰C?
If a zinc melts at 35⁰C, what state is it
at 20⁰C?
• solid
How can you tell if copper sulphate
has dissolved?
How can you tell if copper sulphate
has dissolved?
• You can’t see any solid
How can you speed up dissolving?
How can you speed up dissolving?
• Heat the liquid
• Stir the liquid
When copper sulphate solution is
evaporated, what is left
When copper sulphate solution is
evaporated, what is left
• Copper sulphate crystals
How do you separate sand and salt?
How do you separate sand and salt?
• Add water
• Dissolve the salt
• Filtration to separate the sand
Name the non metal…
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•
•
•
Tin
Zinc
Carbon
aluminium
Name the non metal…
•
•
•
•
Tin
Zinc
Carbon
aluminium
What is an alloy?
What is an alloy?
• A mixture of two or more metals
What is the name of the metal that
rusts?
What is the name of the metal that
rusts?
• iron
What is needed for iron to rust?
What is needed for iron to rust?
• Oxygen and water
What do you get from the following
reaction?
• Sulphur + oxygen  ?
What do you get from the following
reaction?
• Sulphur + oxygen  sulphur dioxide
What do you get from the following
reaction?
• Carbon + oxygen  ?
What do you get from the following
reaction?
• Carbon + oxygen  carbon dioxide
What happens when you add an alkali
to an acid?
What happens when you add an alkali
to an acid?
• neutralisation
What do you get from the following
reaction?
• Calcium hydroxide + sulphuric acid  ?
What do you get from the following
reaction?
• Calcium hydroxide + sulphuric acid  calcium
sulphate
Why do plants have leaves?
Why do plants have leaves?
• To make sugar
• By photosynthesis
What effect does acid rain have on
limestone?
What effect does acid rain have on
limestone?
• It erodes or weathers it
What is a control in an experiment?
What is a control in an experiment?
• A factor you keep the same so you can see the
effect
What would be a control if you drank
fizzy coca-cola?
What would be a control if you drank
fizzy coca-cola?
• Fizzy water
• To see if it is the fizz or caffeine that has the
effect
What is one year?
What is one year?
• 365 days
• The time it takes for the earth to orbit the sun
Why do we have day and night?
Why do we have day and night?
• The earth spins on its axis
Why do we have summer and winter?
Why do we have summer and winter?
• The earth’s axis is tilted
What was the earliest evidence that
the world was a sphere?
What was the earliest evidence that
the world was a sphere?
• Ships went out of sight on the horizon
What did Aristotle say about falling
objects?
What did Aristotle say about falling
objects?
• That everything falls at the same rate
What two forces act on a falling
object?
What two forces act on a falling
object?
• Gravity and air resistance
What force is missing on the moon?
What force is missing on the moon?
• Air resistance
What is used to measure voltage?
What is used to measure voltage?
• voltmeter
What happens when you add metals,
wire and a clock to a lemon?
What happens when you add metals,
wire and a clock to a lemon?
• Current flows
Why don’t you use the same 2 metals
in the lemon
Why don’t you use the same 2 metals
in the lemon
• You would get no current
Name the parts of a plant cell
Name the parts of a plant cell
•
•
•
•
Nucleus
Chloroplast
Cell wall
vacuole
What are the jobs of the nucleus,
chloroplast and cell wall?
What are the jobs of the nucleus,
chloroplast and cell wall?
• Nucleus: controls cell with DNA
• Chloroplast: photosynthesis
• Cell wall: supports cell
What does a plant cell have that an
animal cell has not?
What does a plant cell have that an
animal cell has not?
• Cell wall
• chloroplast
Which processes below match with
photosynthesis, and which go with respiration?
carbon dioxide is produced
light is needed
it occurs in plants and animals
oxygen is produced
Which processes below match with
photosynthesis, and which go with respiration?
carbon dioxide is produced
light is needed
it occurs in plants and animals
oxygen is produced