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…

• 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 producedlight is neededit occurs in plants and animalsoxygen is produced

Which processes below match with photosynthesis, and which go with respiration?

carbon dioxide is producedlight is neededit occurs in plants and animalsoxygen is produced