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Matter and Energy
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The wood is receiving thermal energy from the fire. What will happen?
It will change state, from wood to ashes
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When water turns into a solid,- ice - this is called (melting, evaporation, condensation or freezing)
Freezing
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Everything around us is made of ________
Matter
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Solid, liquid or gas? It doesn't have a definite shape or volume
Gas
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In a mixture, to separate a solid from a liquid that it is DISSOLVED in we do this (sieve, filter, evaporate)
evaporate
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When water vapour cools, it turns liquid. This is called (melting, evaporation, condensation, freezing)
condensation
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Name 2 or 3 materials that are good insulators
Wood, wool, plastic
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In a mixture, to separate solids of different sizes we do this (sieve, filter, evaporate)
sieve
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This type of energy travels in waves
Sound energy
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Solid, liquid or gas? It has a definite shape AND definite volume
Solid
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In a mixture, to separate solids from liquids we do this (sieve, filter, evaporate)
filter
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Thermal energy passes through ____(conductors/insulators) quickly
Conductors
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True or false: thermal energy passes through insulators quickly.
FALSE. Thermal energy passes through insulators very slowly.
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True or false: matter does not change state
False, it can change from one state to another
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A mixture is made up of how many materials?
More than one
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Solid, liquid or gas? It doesn't have a definite shape, but it does have a definite volume
liquid
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If we heat water, it changes into a gas called water vapour. This is called (melting, evaporation, condensation or freezing)
evaporation
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Electrical energy can be changed into other types of energy, such as ___
light energy, sound energy, thermal energy, kinetic energy
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What types of energy does the sun produce?
Thermal energy and light energy
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True or false: you can always see the different materials in mixtures
False, sometimes you can see the different materials, but sometimes you can't
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Which is the odd one out (different)? Juice, milk, chocolate. Explain your answer
Chocolate because it is a solid and the others are liquid
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True or false: we can separate all mixtures
False, we can separate some but not all
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True or false: one form of energy CANNOT change into another form
False, energy CAN change from one form to another
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What are the three states of matter?
Solid, liquid and gas
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If we heat ice, it changes back into a liquid. This is called ___ (melting, evaporation, condensation or freezing)
Melting
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We use this type of energy to make machines work
Electrical energy
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Anything that moves has this type of energy
Kinetic energy
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Water can be found in three states. What are they?
Ice (solid), water (liquid) and water vapour (gas)
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Metals are good ____ (conductors/insulators)
conductors
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