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freezing means a substance changes from a liquid into a solid by decreasing heat energy & water is a kind of substance | decreasing heat energy in water will change water from a liquid into a solid |
decreasing heat energy in water will change water from a liquid into a solid & removing heat from water will decrease the heat energy in the water | removing heat from the water will change water from a liquid to a solid |
removing heat from the water will change water from a liquid to a solid & liquid is a kind of state of matter & liquid is a kind of state of matter | removing heat from the water will change water from a liquid state to a solid state |
removing heat from the water will change water from a liquid state to a solid state & water is in the liquid state , called liquid water & water is in the solid state , called ice | removing heat from water will change water from liquid water to ice |
water is in the solid state , called ice & water turns into ice & water is in the liquid state , called liquid water | water changes from a liquid to a solid |
water changes from a liquid to a solid & freezing means matter / a substance changes from a liquid into a solid by decreasing heat energy | the water freezes |
the water freezes & freezing is a kind of phase change | water undergoes a phase change |
water undergoes a phase change & phase changes change the arrangement of molecules in a substance / in a sample | the arrangement of molecules in water is changed by a phase change |
there is a 100 ml water & there is a 150 ml water & milliliters ml is a metric unit used for measuring volume generally used for values between 1 and 1000 | the 100 ml water and the 150 ml water have different volumes |
the 100 ml water and the 150 ml water have different volumes & volume has no impact on boiling / melting / freezing point | different volumes have no impact on the freezing point of the 100ml water and 150 ml water |
different volumes have no impact on the freezing point of the 100ml water and 150 ml water & the freezing point of water is 0 c | the 150 ml water has a freezing point of 0 c |
water is a kind of liquid at room temperature & freezing means a substance changes from a liquid into a solid by decreasing heat energy | freezing will change the liquid water into solid |
freezing will change the liquid water into solid & particles in a solid have an orderly fixed position | freezing can change the particles in water to an orderly fixed position |
water is in the solid state , called ice & ice cube is made of ice | ice cube is made of water in solid state |
ice cube is made of water in solid state & water is a kind of liquid at room temperature | ice cubes have to be made by changing liquid water to solid ice |
water is a kind of substance & freezing means a substance changes from a liquid into a solid by decreasing heat energy | water freezing means water changes from a liquid into a solid by decreasing heat energy |
ice cubes have to be made by changing liquid water to solid ice & water freezing means water changes from a liquid into a solid by decreasing heat energy | ice cubes have to be made by freezing the liquid water |
ice cubes have to be made by freezing the liquid water & freezing is a kind of exothermic process | making ice cubes is a kind of exothermic process |
water is put into the freezer & a freezer is used for cooling things | the water will cool in the freezer |
the water will cool in the freezer & liquid water cooling causes that liquid water to freeze | the water will freeze in the freezer |
the water will freeze in the freezer & freezing means a substance changes from a liquid to a solid | the water will change to a solid in the freezer |
the water will change to a solid in the freezer & matter in the solid phase has definite shape | the water will have definite shape after it freezes into a solid |
ice is a kind of solid & ice cube is made of ice | an ice cube is a kind of solid |
an ice cube is a kind of substance & an ice cube melts & melting means a substance changes from a solid into a liquid by increasing heat energy | when an ice cube melts, it changes from a solid to a liquid |
the freezing point of water / melting point of water is 32f / 0c / 273k & 0 c is lower than 1538 c & the melting point of iron is 2800f / 1538c / 1811k | the melting point of water is lower than the melting point of iron |
-2188 c is lower than 0 c & the freezing point of water / melting point of water is 32f / 0c / 273k & the melting point of oxygen is -3618f / -2188c / 544k | the melting point of oxygen is lower than the melting point of water |
the melting point of water is lower than the melting point of iron & the melting point of oxygen is lower than the melting point of water | the melting point of oxygen is lower than water and the melting point of water is lower than iron |
ice is a kind of solid & melting means matter / a substance changes from a solid into a liquid by increasing heat energy & ice melts | ice will change into a liquid when it melts |
matter in the liquid state drips & the wax from a candle drips & wax is a kind of matter | the dripping wax is in liquid state |
the dripping wax is in liquid state & the wax from candle is usually in solid state | the wax has changed from a solid state to a liquid state |
the wax has changed from a solid state to a liquid state & melting means matter / a substance changes from a solid into a liquid by increasing heat energy | the wax from the candle melted |
the wax from the candle melted & melting is when solids are heated above their melting point | the melting wax has been heated above its melting point |
if something is taken out of a freezer then it's moved to a warmer place & ice cream is left out of a freezer | the ice cream is moved to a warmer place |
the ice cream is moved to a warmer place & moving an object from a cool place to a warm place causes the object 's temperature to increase | the ice cream will increase in temperature |
the ice cream will increase in temperature & temperature is a measure of heat energy | the ice cream will increase in heat energy |
the ice cream will increase in heat energy & melting means matter / a substance changes from a solid into a liquid by increasing heat energy & ice cream is a kind of solid | the ice cream will melt and change from a solid to a liquid |
a solid object is heated & heating means adding heat | heat energy is added to the solid object |
heat energy is added to the solid object & melting means matter / a substance changes from a solid into a liquid by increasing heat energy | the solid object will melt when added heat energy |
a solid is a kind of substance & ice cream is a kind of solid | ice cream is a solid substance |
ice cream is a solid substance & melting means matter / a substance changes from a solid into a liquid by increasing heat energy & ice cream changes from solid to liquid | ice cream melts by increasing heat energy |
ice is colder in temperature than water & a waterfall contains water & a glacier is made of ice | the glacier has the colder water |
water is a kind of liquid at room temperature & water is a kind of substance & freezing means matter / a substance changes from a liquid into a solid by decreasing heat energy | water will change from a liquid to a solid by decreasing heat energy |
water will change from a liquid to a solid by decreasing heat energy & temperature is a measure of heat energy | water will change from a liquid to a solid by decreasing the temperature |
water is boiling in the pot & boiling means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of liquid at room temperature | water changes from a liquid to a gas when it is boiling |
water is a kind of substance & freezing means a substance changes from a liquid into a solid by decreasing heat energy | decreasing the heat energy of water will change water from a liquid into a solid |
heat is taken away from a container of water & taking heat away from water means decreasing heat energy of the water | the heat energy of the water in the container is decreasing |
decreasing the heat energy of water will change water from a liquid into a solid & the heat energy of the water in the container is decreasing | the water in the container will be changed from a liquid to a solid by decreasing heat energy |
temperature changing can cause phase changes & a phase change is when a substance changes from one state of matter into another state of matter | temperature changing can cause a substance to change from one state of matter into another state of matter |
temperature changing can cause a substance to change from one state of matter into another state of matter & air temperature is a kind of temperature | a change in air temperature can cause a substance to change from one state of matter into another state of matter |
a change in air temperature can cause a substance to change from one state of matter into another state of matter & water is a kind of substance | a change in air temperature can cause water to change from one state of matter into another state of matter |
copper is a kind of metal & a metal is usually a solid at room temperature | copper is a solid at room temperature |
copper is a solid at room temperature & solid is a kind of state of matter | the state of matter of copper is solid |
an object blocking light causes a shadow & if an object is in the light then that object is blocking the light | if an object is in the light then the object will cause a shadow |
if an object is in the light then the object will cause a shadow & sunlight is a kind of light | if an object is in the sunlight then the object will cause a shadow |
if an object is in the sunlight then the object will cause a shadow & a boy is a kind of object | if a boy is in the sunlight then the boy will cause a shadow |
if a boy is in the sunlight then the boy will cause a shadow & a boy stands in the sunlight | the boy in the sunlight will cause a shadow |
the boy in the sunlight will cause a shadow & shadow of an object can be seen by eyes | the boy can see his shadow in the sunlight |
as temperature during the day increases , the temperature in an environment will increase & as the temperature of an environment increase, the objects in the environment will increase in temperature | as the temperautre of the day increases, the objects in the environment will increase in temperature |
as the temperautre of the day increases, the objects in the environment will increase in temperature & as the temperature of an object increases , the size of that object will increase | as the temperature of the day increases, the size of the objects in the environment will increase |
as the temperature of the day increases, the size of the objects in the environment will increase & the metal railroad tracks are out during the day & temperature increases during the day | the size of the metal railroad tracks will increase during the day |
the size of the metal railroad tracks will increase during the day & length is a part of size | the length of the metal railroad tracks will also increase during the day |
air is a kind of gas & if gas is heated then that gas will expand / rise | if air is heated then air will expand and rise |
the water is warm & a hot / warm something is a source of heat | the warm water is a source of heat |
the warm water is a source of heat & a metal lid is put under warm water | the metal lid is put under a source of heat |
the metal lid is put under a source of heat & if a thermal conductor / an object is exposed to a source of heat then that conductor / that object may become hot / warm | the metal lid will become hot under the warm water |
the metal lid will become hot under the warm water & if a material is heated , then the material will expand & metal is a kind of material | the metal lid will expand under the warm water |
the metal lid will expand under the warm water & if the lid of a container expands then that container will be easier to open | the lid is easier to open because the metal lid expands under the warm water |
substances are made of molecules & gas is a kind of substance | a gas is made of its molecules |
a gas is made of its molecules & a gas is heated and its temperature increases & as the temperature of a substance increases , the molecules in that substance will move faster / farther apart | the molecules in the gas will move faster |
as the temperature increases, the particles in the matter will move faster and farther apart & a copper wire is a kind of matter | as the temperature of the copper wire increases, the particles in the matter will move faster and farther apart |
increasing heat causes thermal expansion & as the heat of an object increases , the mass of the object will stay the same | the mass of object will stay the same during thermal expansion caused by increasing heat |
the mass of object will stay the same during thermal expansion caused by increasing heat & objects are made of substances | the mass of substance will stay the same during thermal expansion caused by increasing heat |
water is a kind of object & objects are made of matter | water is made of matter |
mass is a property of matter & volume is a property of matter | matter has mass and volume |
matters are made of atoms & objects are made of matter | objects are made of atoms |
objects are made of atoms & a redwood tree is a kind of object & water is a kind of object & aluminum is a kind of object & a valley quail is a kind of object | water, redwood trees, aluminum, and valley quails are all made of atoms |
matter is made of atoms & atom is a kind of particle | matter is made of particles called atoms |
a protractor is a kind of tool & a protractor is used for measuring the angles of a triangular object | a protractor is the best tool to measure the angles of a triangular object |
a balance is used for measuring mass of a substance & a balance is a kind of instrument | a balance is an instrument used to measure the mass of a substance |
a balance is an instrument used to measure the mass of a substance & frosting is a kind of substance | a balance can be used to measure the mass of the frosting |
a rock is a kind of object & mass is a property of objects / matter & comparing a property of two objects requires knowing the property of each object | comparing the mass of two rocks requires knowing the mass of each rock |
comparing the mass of two rocks requires knowing the mass of each rock & student is trying to compare the mass of two small rocks | the student has to know the mass of each rock to compare them |
the student has to know the mass of each rock to compare them & a balance is used for measuring mass / weight of an object / of a substance & a balance is a kind of instrument | the student can use balance to know the mass of each rock to compare them |
a balance is a kind of tool & a balance is used for measuring the mass of an object | a balance is a kind of tool used for measuring the mass of an object |
a balance is used for measuring the mass of an object & a balance is a kind of tool | a balance is a kind of tool used for measuring the mass of an object |
weight is the force of gravity acting on an object & a scale is used for measuring weight | a scale is used for measuring the force of gravity acting on an object |
a scale is used for measuring the force of gravity acting on an object & a student is a kind of object | a scale is used for measuring the force of gravity acting on the student |
the density of a liquid can be calculated by dividing the mass over volume & a graduated cylinder can measure a liquid's volume & a balance can measure a liquid's mass | density can be measured using a graduated cylinder and a balance |
density can be measured using a graduated cylinder and a balance & density can be used to predict whether a liquid will float on water or sink under water | a graduated cylinder and balance can be used to predict whether a liquid will float on water or sink on water |
density can be calculated by measuring the mass of an object divided by the volume of that object & a graduated cylinder is used to measure volume & a balance is used to measure mass | the density of an object can be measured using a graduated cylinder and a balance |
the density of an object can be measured using a graduated cylinder and a balance & a rock sample is a kind of object | the density of a rock sample can be measured using a graduated cylinder and a balance |
density can be calculated by measuring the mass of an object divided by the volume of that object & a graduated cylinder is used to measure volume & a balance is used to measure mass | the density of an object can be measured using a graduated cylinder and a balance |
the density of an object can be measured using a graduated cylinder and a balance & a rock sample is a kind of object | the density of a rock sample can be measured using a graduated cylinder and a balance |
a graduated cylinder is used to measure volume of an object & a balance is used for measuring the mass of an object & density can be calculated by measuring the mass of an object divided by the volume of that object | the density of an object can be measured using a graduated cylinder and a balance |
the density of an object can be measured using a graduated cylinder and a balance & a marble is a kind of object | the density of a marble can be measured using a graduated cylinder and a balance |
a stopwatch is used to measure time & how long something takes to happen is a kind of measurement of time | a stopwatch can be used to measure how long something takes to happen |
a stopwatch can be used to measure how long something takes to happen & a process takes time to happen | a stopwatch can be used to measure how long a process takes to happen |
a stopwatch can be used to measure how long a process takes to happen & melting is a kind of process | a stopwatch can be used to measure how long it takes for melting to happen |
a stopwatch is used to measure time & speed is a measure of distance travelled by an object divided by time & a meter stick is used to measure distance | the speed of an object can be measured using a meter stick and a stopwatch |
the speed of an object can be measured using a meter stick and a stopwatch & a turtle is a kind of object | the speed of a turtle can be measured using a meter stick and a stopwatch |