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Los Olivos 3rd Course NS Unit 5 Matter

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  • What kind of mixture is this?
    A salad is a heterogeneous mixture.
  • Complete: Evaporation separates _______________ mixtures. For example, we can separate salt and water making __________ evaporate.
    homogeneous; water
  • What is recyclable waste?
    Waste made of materials that can be made into new objects (recycled): cans, plastic bottles, newspapers, glass, cardboard...
  • What is waste?
    It's all the rubbish we throw away.
  • True or False: When water is in solid state it expands to occupy more space.
    True
  • What is water made of?
    It's made of hydrogen and oxygen (H2O)
  • Guess the state of the matter: they take the shape of the container they are in and always occupy the same amount of space
    Liquid
  • What happens when you cool down liquid water?
    It freezes and turns into ice (solid water).
  • What are the properties of liquids?
    they take the shape of the container they are in and always occupy the same amount of space
  • Which of these objects are liquid? orange juice, smoke, garage door, fizzy drink, air, book
    orange juice and fizzy drink
  • Which of these objects are gas? orange juice, smoke, garage door, fizzy drink, air, book
    smoke and air
  • What is a homogeneous mixture?
    It's a mixture where we CAN'T see the different substances separately and it looks the same. For example, when we put sugar in orange juice.
  • What is a heterogeneous mixture?
    It's a mixture where we CAN see the different substances separately. For example: a fruit salad in which you can see the different fruits.
  • What happens to water at temperatures over 100ºC?
    It is in gas state (water vapour or steam).
  • Guess the property of matter: It's the space matter occupies.
    Volume
  • Which of these objects are solid? orange juice, smoke, garage door, fizzy drink, air, book
    garage door and book
  • Guess the property of matter: It's the amount of matter. It's measured in units like grams or kilograms.
    Mass
  • What does the O in H2O stand for?
    It stands for Oxygen.
  • Complete: Filtration separates _______________ mixtures. For example, we can separate sand and water pouring the mixture through a ___________.
    heterogeneous; filter
  • What happens when you heat liquid water?
    It boils and evaporates, it turns into steam or water vapour.
  • Guess the substance: It's odourless, colourless and tasteless.
    It's water.
  • We can separate mixtures with two methods. What are they?
    Evaporation and filtration
  • Guess the state of the matter: They have their own shape and always occupy the same amount of space
    Solid
  • What kind of mixture is this?
    Pasta with tomato sauce (and pasta in the boiling water) is a heterogeneous substance (we can see the different components)
  • What is a pure substance?
    It's a substance that consists of only one component. For example: silver, water, salt or wood.
  • What is e-waste?
    Waste from electronic devices: mobile phones, DVDs, TVs and computers, which have toxic substances.
  • Say 4 things you can do to reduce waste:
    Take your bags when you go shopping, write on both sides of the paper, recycle and reuse.
  • What is mass?
    It's the amount of matter.
  • What happens to water at temperatures below (under) 0ºC?
    It's in solid state (ice or snow).
  • Which of these objects are man-made or artificial? Paper, water, wood, rubber, plastic, rocks
    paper, rubber and plastic
  • In what states can we find water?
    Solid (ice), liquid (liquid water) and gas (steam or water vapour)
  • What two types of mixtures are there?
    Heterogeneous mixtures and homogeneous mixtures.
  • What are the properties of gases?
    they take the shape of the container they are in and expand to occupy as much space as possible
  • Guess the state of the matter: they take the shape of the container they are in and expand to occupy as much space as possible
    Gas
  • Guess the property of matter: It's the mass of a substance divided by its volume.
    Density
  • What are the four types of waste?
    Organic, recyclable, non-recyclable and e-waste.
  • What is density?
    It's the mass of a substance divided by its volume.
  • What kind of mixture is this?
    A fruit salad is a heterogeneous mixture (we can see the different fruits).
  • What type of substances are silver, water, salt or wood?
    They are pure substances.
  • What kind of mixture is this?
    This smoothie is a homogeneous mixture (we can't see the different components)
  • What does the H in H2O stand for?
    It stands for Hydrogen.
  • What happens when you cool down water vapour or steam?
    It condenses and turns into liquid water.
  • What is organic waste?
    It's the waste that comes from plants and animals and is biodegradable: bacteria and other living things decompose it.
  • What happens when you heat ice (solid water)?
    It melts and turns into liquid water.
  • What do we call the energy exchanged between two objects at different temperatures?
    It's heat
  • True or False: When water is in solid state it contracts to occupy less space.
    False. Water expands when it becomes ice! And it can break its container!
  • What happens to water at temperatures between 1ºC and 99ºC?
    It's in liquid state (liquid water)
  • What is volume?
    It's the space matter occupies.
  • What is heat?
    It's the energy exchanged between two objects at different temperatures.
  • What is a mixture?
    It's a substance that happens when we put two or more substances together. For example: yoghurt with sugar or chocolate milk.
  • What is non-recyclable waste?
    Waste that can't be made into new objects (can't be recycled): plastic bags, nappies and facemasks, that pollute the water
  • What are the properties of solids?
    They have their own shape and always occupy the same amount of space
  • Which of these objects are natural? Paper, water, wood, rubber, plastic, rocks
    water, wood and rocks
  • What are three properties of water?
    It's odourless, colourless and tasteless.
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