sentences
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water is a kind of substance
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water is a kind of substance
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puddles of water are outside during the day
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temperature is a measure of heat energy
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evaporation means a substance changes from a liquid into a gas by increasing heat energy
1
if something receives sunlight, it will increase in temperature
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if something is outside during the day then that something will receive sunlight
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water is a kind of substance
1
gas is a kind of state of matter
1
liquid is a kind of state of matter
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a puddle is a kind of body of water
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evaporation means a substance changes from a liquid into a gas by increasing heat energy
1
a pan is put on an open flame
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a flame are a part of a fire
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evaporation means a substance changes from a liquid into a gas by increasing heat energy
1
if a substance is exposed to a source of heat then that substance may become hot / warm
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becoming hot means increasing in heat energy
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an ice cube is placed in the pan
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if thermal conductor is exposed to a source of heat then that conductor may become hot / warm
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a hot object is a source of heat
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metal is a thermal conductor
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fire gives off heat
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a source of something gives off that something
1
melting means a substance changes from a solid into a liquid by increasing heat energy
1
if something is placed over a heat source then that something is exposed to that heat source
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a pan is made of metal for cooking
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if an object is exposed to a source of heat then that object may become hot
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an ice cube is a kind of object
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a pan is a kind of object
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in the salt water solution , the solvent is water
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if something is in the sunlight then that something will absorb solar energy
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salt water is placed in sunlight for a day
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temperature is a measure of heat energy
1
evaporation means a substance changes from a liquid into a gas by increasing heat energy
1
in the salt water solution, the solvent is water
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in the salt water solution , the solute is salt
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if a substance absorbs solar energy then that substance will increase in temperature
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water is a kind of substance
1
if the solvent of a solution evaporates , then the solute of the solution will remain
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water is a kind of substance
1
freezing means a substance changes from a liquid into a solid by decreasing heat energy
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moisture is water in liquid form
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water is a kind of substance
1
freezing means a substance changes from a liquid into a solid by decreasing heat energy
1
there is moisture on the surface of the airplane
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an airplane is climbing in the sky
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climbing increases altitude
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as altitude increases , the temperature of the air will decrease in the troposphere
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water is in the solid state , called ice
1
water is in the liquid state , called liquid water
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a freezer is used for cooling things
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freezing means a substance changes from a liquid into a solid by decreasing heat energy
1
water is in the solid state , called ice
1
water is put in the freezer
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cooling means removing heat
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liquid is a kind of state of matter
1
removing heat from water will decrease the heat energy in the water
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water is a kind of substance
1
water is in the solid state , called ice
1
water turns into ice
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freezing means matter / a substance changes from a liquid into a solid by decreasing heat energy
1
phase changes change the arrangement of molecules in a substance / in a sample
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water is in the liquid state , called liquid water
1
freezing is a kind of phase change
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there is a 100 ml water
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volume has no impact on boiling / melting / freezing point
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there is a 150 ml water
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the freezing point of water is 0 c
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milliliters ml is a metric unit used for measuring volume generally used for values between 1 and 1000
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water is a kind of liquid at room temperature
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particles in a solid have an orderly fixed position
1
freezing means a substance changes from a liquid into a solid by decreasing heat energy
1
water is a kind of substance
1
water is in the solid state , called ice
1
ice cube is made of ice
1
freezing means a substance changes from a liquid into a solid by decreasing heat energy
1
water is a kind of liquid at room temperature
1
freezing is a kind of exothermic process
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matter in the solid phase has definite shape
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water is put into the freezer
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a freezer is used for cooling things
1
freezing means a substance changes from a liquid to a solid
1
liquid water cooling causes that liquid water to freeze
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ice is a kind of solid
1
ice cube is made of ice
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an ice cube is a kind of substance
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an ice cube melts
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melting means a substance changes from a solid into a liquid by increasing heat energy
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-2188 c is lower than 0 c
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the freezing point of water / melting point of water is 32f / 0c / 273k
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0 c is lower than 1538 c
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the melting point of iron is 2800f / 1538c / 1811k
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the melting point of oxygen is -3618f / -2188c / 544k
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ice is a kind of solid
1
melting means matter / a substance changes from a solid into a liquid by increasing heat energy
1
ice melts
1
melting is when solids are heated above their melting point
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matter in the liquid state drips
1
melting means matter / a substance changes from a solid into a liquid by increasing heat energy
1
the wax from candle is usually in solid state
1