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chemical reactions cause new materials to form
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chemical change is a kind of chemical reaction
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fire is a kind of chemical reaction
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paper burns
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fire causes burning
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chemical reactions cause chemical change
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magnesium is flammable
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flammability is a property of substance and includes values of flammable / inflammable
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magnesium is a kind of substance
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if a substance is flammable , it can burn
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an example of a chemical property is the elements making up a compound
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water is made of hydrogen and oxygen
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a compound can be chemically separated into the elements that it is made of
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water is a kind of compound
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when two substances together form a compound then those substances cannot be physically separated
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a compound being broken down is a kind of chemical change
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a compound can be chemically separated into the elements that it is made of
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gold is a pure substance
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a pure substance is made up of only one kind of atom
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lighting a match causes that match to burn
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fire causes chemical change
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fire causes burning
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oxygen is produced when electrical energy is added to water
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water is a kind of substance
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electrical energy is added to water
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an element is a kind of substance
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chemical changes cause different substances to form
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hydrogen is produced when electrical energy is added to water
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hydrogen is a kind of element
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oxygen is a kind of element
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combining acid and protein can cause chemical change
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lemon juice contains acid
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milk contains proteins
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an example of a chemical property is how a material reacts chemically
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carbon dioxide is a new substance produced by sodium bicarbonate under proper conditions
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chemical reactions cause new substances to form
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flammability is a kind of chemical property
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flammability is a property of matter
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matter in the gas phase has variable shape
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the beach ball is pushed on the middle
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a beach ball is a kind of container
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matter with variable volume and shape takes the shape and size of its entire container
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air is a kind of matter
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if a flexible container is pushed on then that container will change shape
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the beach ball is filled with air
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air is in gas phase
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a beach ball is flexible
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state of matter is a property of substance includes values of solid / liquid / gas
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a thermal energy conductor conducts heat
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iron is a kind of solid
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metal is a thermal energy conductor
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iron is a kind of metal
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iron is always magnetic
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iron nails are made of iron
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paper is a kind of object
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a pencil is a kind of object
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if something undergoes a physical change then the physical properties of that something will change
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tearing paper changes the shape of the paper
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shape is a property of the appearance of an object
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appearance is a kind of physical property
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sharpening a pencil changes the shape of the pencil
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a phase change is when a substance changes from one state of matter into another state of matter
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water is a kind of substance
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the molecules of a substance cannot move easily past each other in solid state
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being a compound or an element is a chemical property of substances
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an example of a physical change is a phase change
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if something undergoes physical change then the chemical properties of that something will remain unchanged
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water is a kind of compound
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water changes into a phase where the molecules cannot move easily past each other
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solid is a kind of state of matter
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an example of a physical change is breaking an object
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a water pipe is a kind of object
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a water pipe freezes and cracks on a cold night
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a phase change is a kind of physical change
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the water pipe freezes
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chemical change is the opposite of physical change
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cracking is a kind of breaking
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freezing is a kind of phase change
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glass is a kind of object
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breaking down an object changes that object 's shape
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shape is a kind of physical property
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if something undergoes a physical change then the physical properties of that something will change
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a solid is a kind of substance
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faster means an increase / higher in speed
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as the temperature of a substance increases , the molecules in that substance will move faster
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heat means temperature increases
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a solid is heated
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mercury is liquid at room temperature
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solid is a kind of state of matter
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state of matter is a kind of physical property
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liquid is a kind of state of matter
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gold is a kind of solid
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if a thing's physical properties change then it has undergone a physical change
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shape is a kind of physical property
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breaking a bottle changes the shape of the bottle
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crumpling is a kind of change of shape action
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change of shape actions change the shape of an object
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a sheet of paper is a kind of object
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a mineral is a kind of solid material
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state of matter is a kind of physical property
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