Transcript 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… • • • • 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