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Grade 5 Science Review - Week 4

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  • If an object floats in water, is it more or less dense than water?
    Less dense
  • Give one example of a substance that is NOT soluble in water.
    Sand or oil
  • Give one example of something that is magnetic.
    Paper clip, nail, iron
  • What is the temperature when a liquid changes to a gas?
    Boiling point
  • What is the boiling point of water?
    100°C
  • What happens when salt dissolves in water?
    It becomes part of the solution (soluble)
  • What are the three main states of matter?
    Solid, liquid, gas
  • What property describes how easy it is to scratch or dent something?
    Hardness
  • True or False: All compounds are made of molecules.
    True
  • What is the smallest unit of matter?
    Atom
  • Name a metal that is a good conductor of electricity.
    Copper (or gold/silver)
  • Which property explains why a balloon filled with helium floats in air?
    Density
  • What property describes whether a substance can dissolve in water?
    Solubility
  • What property describes the ability to bend without breaking?
    Flexibility
  • Which state of matter has no fixed shape and no fixed volume?
    Gas
  • True or False: All solids are hard.
    False
  • True or False: All molecules are compounds.
    False
  • What tool do we use to measure mass?
    A scale (balance)
  • What property would you test with a magnet?
    Magnetism
  • Give one example of an element.
    Oxygen, Hydrogen, Gold etc.
  • What is the amount of matter in an object called?
    Mass
  • Name a material that is a poor conductor (insulator).
    Rubber or wood
  • Give one example of a compound.
    Water (H₂O), Salt (NaCl), Carbon dioxide (CO₂)
  • What tool do we use to measure the volume of a liquid?
    Graduated cylinder
  • What property describes how something feels (smooth, rough, soft, hard)?
    Texture
  • Which state of matter has a definite shape and volume?
    Solid
  • What is the amount of space an object takes up?
    Volume
  • What do we call a group of two or more atoms joined together?
    Molecule
  • What is the temperature when a solid changes to a liquid?
    Melting point
  • What do we call a substance made of two or more elements chemically combined?
    Compound
  • Which property explains why glass can be scratched by a nail?
    Hardness
  • What property would you test by trying to bend a ruler?
    Flexibility
  • What property describes whether an object is attracted to a magnet?
    Magnetism
  • What property tells us if an object will float or sink?
    Density (Buoyancy)
  • What tool would you use to measure the temperature when water boils?
    Thermometer
  • Give one example of a substance that is soluble in water.
    Sugar or salt
  • Why do scientists use more than one property to identify matter?
    To be more accurate
  • Which state of matter takes the shape of its container?
    Liquid or gas
  • Which has more mass: a 1 kg book or a 500 g apple?
    1 kg book
  • What is an element made of?
    Only one kind of atom
  • True or False: Density can be tested by seeing if an object sinks or floats.
    True
  • What property describes the ability to carry electricity or heat?
    Conductivity
  • Which will heat up faster in the sun: metal or wood?
    Metal (better conductor)
  • What property changes when ice becomes liquid water?
    State of matter
  • Which state of matter has no fixed shape but has a fixed volume?
    Liquid
  • What property describes the form or outline of matter?
    Shape
  • What property is observed using only our eyes (like red, blue, green)?
    Color
  • What is the melting point of ice?
    0°C
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