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magnesium is a flammable substance & flammability is a property of substance and includes values of flammable / inflammable | magnesium is a substance that is flammable |
magnesium is a substance that is flammable & if a substance is flammable , it can burn | magnesium can burn |
an example of a chemical property is the elements making up a compound & water is a kind of compound | an example of chemical property is the elements making up water |
an example of chemical property is the elements making up water & water is made of hydrogen and oxygen | a chemical property of water is that it is made of hydrogen and oxygen |
a chemical property of water is that it is made of hydrogen and oxygen & a compound can be chemically separated into the elements that it is made of | water can be separated into hydrogen and oxygen |
a compound being broken down is a kind of chemical change & a compound can be chemically separated into the elements that it is made of | a compound can only be separated into the elements by chemical change |
a compound can only be separated into the elements by chemical change & when two substances together form a compound then those substances cannot be physically separated | a compound can only be broken down in chemical change but not physcial changes |
gold is a pure substance & a pure substance is made up of only one kind of atom | gold is only made of gold atoms |
lighting a match causes that match to burn & fire causes burning | lighting a match is when a fire causes the match to burn |
lighting a match is when a fire causes the match to burn & fire causes chemical change | lighting a match is an example of chemical change |
hydrogen is a kind of element & oxygen is a kind of element | hydrogen and oxygen are different elements |
hydrogen and oxygen are different elements & an element is a kind of substance | hydrogen and oxygen are different substances |
hydrogen and oxygen are different substances & water is a kind of substance | hydrogen, oxygen, and water are different substances |
electrical energy is added to water & hydrogen is produced when electrical energy is added to water | electrical energy causes hydrogen to form from water |
oxygen is produced when electrical energy is added to water & electrical energy is added to water | electrical energy causes oxygen to form from water |
electrical energy causes hydrogen to form from water & electrical energy causes oxygen to form from water | electrical energy causes hydrogen and oxygen to form from water |
hydrogen, oxygen, and water are different substances & electrical energy causes hydrogen and oxygen to form from water | electrical energy causes different substances to form from water |
electrical energy causes different substances to form from water & chemical changes cause different substances to form | electrical energy causes chemical change to the water |
lemon juice contains acid & milk contains proteins | adding lemon juice to milk is similar to combining acid and protein together |
adding lemon juice to milk is similar to combining acid and protein together & combining acid and protein can cause chemical change | adding lemon juice to milk can cause chemical change |
carbon dioxide is a new substance produced by sodium bicarbonate under proper conditions & chemical reactions cause new substances to form | sodium bicarbonate releasing carbon dioxide under proper conditions is a chemical reaction |
sodium bicarbonate releasing carbon dioxide under proper conditions is a chemical reaction & an example of a chemical property is how a material reacts chemically | releasing carbon dioxide under proper conditions is a kind of chemical property of sodium bicarbonate |
flammability is a kind of chemical property & flammability is a property of matter | flammability is a chemical property of matter |
a beach ball is a kind of container & if a flexible container is pushed on then that container will change shape & a beach ball is flexible | if a beach ball is pushed on, then the shape of the beach ball will change |
if a beach ball is pushed on, then the shape of the beach ball will change & the beach ball is pushed on the middle | the shape of the beach ball will change |
matter in the gas phase has variable shape & air is a kind of matter & air is in gas phase | air is a matter that has variable shape |
air is a matter that has variable shape & matter with variable volume and shape takes the shape and size of its entire container | air takes the shape of its container |
air takes the shape of its container & a beach ball is a kind of container & the beach ball is filled with air | air takes the shape of the beach ball |
the shape of the beach ball will change & air takes the shape of the beach ball | the shape of the air in the beach ball will change with the shape of the beach ball |
iron is a kind of solid & iron nails are made of iron | iron nails are solid |
iron nails are solid & state of matter is a property of substance includes values of solid / liquid / gas | iron nails are solid in state of matter |
iron is a kind of metal & iron nails are made of iron | iron nails are made of metal |
iron nails are made of metal & a thermal energy conductor conducts heat & metal is a thermal energy conductor | iron nails can conduct heat |
iron is always magnetic & iron nails are made of iron | iron nails are magnetic |
iron nails are solid in state of matter & iron nails can conduct heat & iron nails are magnetic | iron nails can conduct heat and are magnetic and are solid |
a pencil is a kind of object & sharpening a pencil changes the shape of the pencil | sharpening a pencil changes the shape of an object |
paper is a kind of object & tearing paper changes the shape of the paper | tearing paper changes the shape of an object |
sharpening a pencil changes the shape of an object & tearing paper changes the shape of an object | sharpening a pencil and tearing paper both change the shape of the object |
sharpening a pencil and tearing paper both change the shape of the object & shape is a property of the appearance of an object | sharpening a pencil and tearing paper both change the appearance of the object |
sharpening a pencil and tearing paper both change the appearance of the object & appearance is a kind of physical property | sharpening a pencil and tearing paper both change the physical property of the object |
sharpening a pencil and tearing paper both change the physical property of the object & if something undergoes a physical change then the physical properties of that something will change | pencil and paper underwent a physical change |
water is a kind of substance & the molecules of a substance cannot move easily past each other in solid state | the molecules of water cannot move easily past each other in solid state |
the molecules of water cannot move easily past each other in solid state & water changes into a phase where the molecules cannot move easily past each other | water changes into solid state |
water changes into solid state & a phase change is when a substance changes from one state of matter into another state of matter & solid is a kind of state of matter | water undergoes a phase change |
water undergoes a phase change & an example of a physical change is a phase change | water undergoing a phase change is an example of physical change |
water undergoing a phase change is an example of physical change & if something undergoes physical change then the chemical properties of that something will remain unchanged | the chemical properties of water will remain unchanged |
the chemical properties of water will remain unchanged & being a compound or an element is a chemical property of substances | water being a compound or an element will remain unchanged |
water being a compound or an element will remain unchanged & water is a kind of compound | water being a compound will remain unchanged |
the water pipe freezes & freezing is a kind of phase change | the water pipe undergoes a phase change |
the water pipe undergoes a phase change & a phase change is a kind of physical change | the water pipe undergoes a physical change when it freezes |
an example of a physical change is breaking an object & cracking is a kind of breaking | an object cracking is a kind of physical change |
an object cracking is a kind of physical change & a water pipe is a kind of object | the water pipe cracking is a kind of physical change |
the water pipe undergoes a physical change when it freezes & the water pipe cracking is a kind of physical change & a water pipe freezes and cracks on a cold night | the water pipe freezing and cracking is an example of physical change |
the water pipe freezing and cracking is an example of physical change & chemical change is the opposite of physical change | the water pipe freezing and cracking is an example of physical change but not a chemical change |
glass is a kind of object & breaking down an object changes that object 's shape | breaking a glass changes the shape of the glass |
breaking a glass changes the shape of the glass & shape is a kind of physical property | breaking a glass changes the physical property of the glass |
breaking a glass changes the physical property of the glass & if something undergoes a physical change then the physical properties of that something will change | breaking a glass is an example of a glass undergoing a physical change |
heat means temperature increases & a solid is heated | the temperature of the solid increases |
the temperature of the solid increases & a solid is a kind of substance | the temperature of the solid substance increases |
the temperature of the solid substance increases & as the temperature of a substance increases , the molecules in that substance will move faster | the molecules in the solid substance moves faster |
the molecules in the solid substance moves faster & faster means an increase / higher in speed | the molecules in the solid substance increases in speed |
solid is a kind of state of matter & gold is a kind of solid | gold is in solid state |
mercury is liquid at room temperature & liquid is a kind of state of matter | mercury is in liquid state |
gold is in solid state & mercury is in liquid state | gold and mercury are in different states of matter |
gold and mercury are in different states of matter & state of matter is a kind of physical property | gold and mercury are different in a physical property |
shape is a kind of physical property & breaking a bottle changes the shape of the bottle | breaking a bottle changes the physical property of the bottle |
breaking a bottle changes the physical property of the bottle & if a thing's physical properties change then it has undergone a physical change | the bottle undergoes a physical change |
crumpling is a kind of change of shape action & change of shape actions change the shape of an object | crumpling changes the shape of an object |
crumpling changes the shape of an object & a sheet of paper is a kind of object | crumpling changes the shape of a sheet of paper |
state of matter is a kind of physical property & solid is a kind of state of matter | solid is a kind of physical property |
solid is a kind of physical property & a mineral is a kind of solid material | being solid is a physical property of a mineral |
neutralization is when an acid reacts with a base & neutralization produces water and salt | neutralization is when an acid reacts with a base and produces water and salt |
an atom is a kind of particle & matter is made of atoms | matter is made of particles called atoms |
electrons are a part of an atom & a electron has a negative -1 electric charge | electrons are part of an atom that has negative charge |
the mass of the atom is determined by protons and neutrons & the nucleus of an atom is made of protons and neutrons | most of the mass of an atom is located in the nucleus |
mercury is made of mercury atoms & atom is a kind of particle | mercury is made of atom particles |
mercury is made of atom particles & particles in a solid are closer together than particles in a liquid & mercury changes from liquid state to solid state | mercury atoms move closer together |
mercury is made of mercury atoms & atom is a kind of particle | mercury is made of atom particles |
mercury is made of atom particles & particles in a liquid have more kinetic energy than particles in a solid & mercury changes from liquid state to solid state | mercury atoms have less kinetic energy |
mercury atoms move closer together & mercury atoms have less kinetic energy | mercury atoms have less kinetic energy and move closer together |
atomic mass is determined by the sum of protons and neutrons numbers in an atom & protons are a kind of subatomic particle & neutrons are a kind of subatomic particle | atomic mass is determined by the sum of protons and neutrons particle numbers |
an atom is a kind of object & losing / gaining electrons causes the electrical charge of an object to be unbalanced | losing or gaining electrons causes the electrical charge of an atom to be unbalanced |
protons are found in the nucleus of an atom & a proton has a positive 1 electric charge | protons are found in the nucleus of an atom and are positvely charged |
atoms with one or two valence electrons tend to lose those electrons & metal atoms usually have one or two valence electrons | metal atoms tend to lose electrons |
metal atoms tend to lose electrons & an ion with positive charge is formed by atom losing electrons | metal atoms losing electrons will form ions with positive charge |
one neutron has one atomic mass unit & the nucleus of an atom is usually made of both protons and neutrons | neutrons add mass to the nucleus |
nucleus is a part of an atom & if something is part of another thing, then another thing consist of that something | an atom consists of a nucleus |
an atom consists of a nucleus & electrons surround / orbit the nucleus of an atom | an atom consists of a nucleus surrounded by electrons |
a proton has a positive 1 electric charge & an electron has a negative -1 electric charge | equal numbers of protons and electrons result in a neutral 0 electric charge |
equal numbers of protons and electrons result in a neutral 0 electric charge & a neutron has a neutral electric charge | equal numbers of protons and electrons and any number of neutrons result in a neutral 0 electric charge |
equal numbers of protons and electrons and any number of neutrons result in a neutral 0 electric charge & an atom is made of protons / neutrons / electrons | if an atom has an equal number of protons and electrons, then the atom will have a neutral charge |
if an atom has an equal number of protons and electrons, then the atom will have a neutral charge & an normal atom has a neutral electric charge | that atom has an equal number of protons and electrons |
the nucleus is the center of an atom & electrons orbit the nucleus of an atom | electrons orbit the center of an atom |
electrons orbit the center of an atom & electrons are a part of an atom | electrons are part of an atom that orbit the center of an atom |
a neutron has a neutral electric charge & one neutron has one atomic mass unit | a neutron is neutral in electric charge and has one atomic mass unit |
a neutron is neutral in electric charge and has one atomic mass unit & neutrons are a kind of subatomic particle | a neutron is a particle that is neutral in electric charge and has one atomic mass unit |
an atom is positive 1 in electric charge & if a neutral atom loses an electron then an atom with a positive charge will be formed | the atom loses an electron |
a proton has a positive 1 electric charge & a neutron has a neutral 0 electric charge | protons and neutrons together will be positive in electric charge |
protons and neutrons together will be positive in electric charge & the nucleus of an atom is made of protons and neutrons | the nucleus of an atom is positve in electric charge |
the nucleus of an atom is positve in electric charge & the nucleus is the center of an atom | the positive charge is concentrated in the center of an atom |