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elements in carbon family have four valence electrons & if the elements are in the same family , then the elements will share the same number of valence electrons | elements in the carbon family share the same number of valence electrons |
the chemical symbol for potassium is k & sodium and potassium belong to alkali metals , group 1 on the periodic table & the chemical symbol for sodium is na | na and k are in the same group |
mercury is liquid at room temperature & mercury is a kind of metal | mercury is a metal that is liquid at room temperature |
mercury is a metal that is liquid at room temperature & metals are usually solid at room temperature | mercury is different from other metals |
argon is a kind of nonmetal & nonmetals usually have lower conductivity | argon is the less conductive nonmetal |
argon is the less conductive nonmetal & argon is a kind of element | argon is the less conductive element |
boiling means matter / a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | water boiling is when water changes from a liquid into a gas |
water boiling is when water changes from a liquid into a gas & water is in the liquid state , called liquid water , for temperatures between 0 c and 100 c & water is in the gas state , called water vapor / steam, for temperatures above 100 c | water boiling is when water changes from liquid water to water vapor |
water is a kind of substance & boiling means matter / a substance changes from a liquid into a gas by increasing heat energy | water boiling is when water changes from a liquid into a gas by increasing heat energy |
water is a kind of liquid & the highest temperature a liquid can reach is it's boiling point | the highest temperature water can reach is it's boiling point |
the highest temperature water can reach is it's boiling point & the boiling point of water is 100c | the highest temperature water can reach is 100c |
if a thermal conductor is exposed to a source of heat then that conductor may become hot0 & if a thermal conductor is exposed to a source of heat then that conductor may become hot2 | if a pot contains something then that pot touches that something |
if a pot contains something then that pot touches that something & a pot contains water | the pot is touching the water |
metal is a thermal energy conductor & a pot is made of metal for cooking | a pot is a thermal energy conductor |
if a thermal conductor is exposed to a source of heat then that conductor may become hot & a stove is a source of heat | if a thermal conductor is exposed to a stove then that conductor may become hot |
a pot is a thermal energy conductor & if a thermal conductor is exposed to a stove then that conductor may become hot | if a pot is exposed to a stove then that pot may become hot |
if a pot is exposed to a stove then that pot may become hot & the pot is exposed to a stove | the pot may become hot |
the pot is touching the water & the pot may become hot | the hot pot is touching the water |
the hot pot is touching the water & if a thermal conductor is exposed to a source of heat then that conductor may become hot3 & a pot is a kind of object | the water will increase temperature by absorbing heat energy from the pot |
heating means adding heat & boiling happens when liquids are heated above their boiling point | boiling happens when liquids increase heat energy above their boiling point |
boiling happens when liquids increase heat energy above their boiling point & if a thermal conductor is exposed to a source of heat then that conductor may become hot1 | if a pot contains something then that pot touches that something0: boiling happens when water increases heat energy above its boiling point |
if a pot contains something then that pot touches that something0 & the water will increase temperature by absorbing heat energy from the pot | the water will boil if heat energy absorbed from the pot is increased past the boiling point |
boiling means matter / a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance & water is in a boiling process | the heat energy of water is increasing |
the heat energy of water is increasing & temperature is a measure of heat energy | the temperature of water is increasing |
the temperature of water is increasing & water is a kind of substance & as the temperature of a substance increases , the molecules in that substance will move faster and farther apart | the water molecules will move faster and farther apart |
boiling means a substance changes from a liquid into a gas by increasing heat energy & boiling happens when liquids are heated above their boiling point & a liquid is a kind of substance | the substance will change from liquid to gas when it is heated over its boiling point |
evaporating is a kind of phase change & condensing is a kind of phase change | evaporating and condensing are both phase change |
evaporating and condensing are both phase change & temperature changing can cause phase changes | evaporating and condensing can both be caused by temperature changing |
evaporating and condensing can both be caused by temperature changing & temperature is a measure of heat energy | evaporating and condensing can both be caused by the change of heat energy |
condensing means a substance changes from a gas into a liquid by decreasing heat energy & water is a kind of substance | water condensing means water changes from a gas into a liquid by decreasing heat energy |
water condensing means water changes from a gas into a liquid by decreasing heat energy & water is in the gas state , called water vapor | water condensing means water vapor changes from a gas into a liquid by decreasing heat energy |
water condensing means water vapor changes from a gas into a liquid by decreasing heat energy & dew is formed when water vapor condenses over night | dew forming is an example of water vapor condensing |
water is in the liquid state , called liquid water & water is a kind of substance & condensing means matter / a substance changes from a gas into a liquid by decreasing heat energy & water is in the gas state , called water vapor / steam | water condensing is when water changes from water vapor to liquid water |
water condensing is when water changes from water vapor to liquid water & condensation is a kind of process | water will change from water vapor to liquid water in the process of condensing |
the water changes from steam to liquid & steam is a kind of gas | the water changes from a gas into a liquid |
the water changes from a gas into a liquid & water is a kind of substance & condensation is when a substance changes from a gas into a liquid by decreasing heat energy | water has condensed in this example |
water has condensed in this example & water is a kind of substance & condensation is when a substance changes from a gas into a liquid by decreasing heat energy | the water decreased heat energy |
the water decreased heat energy & water is a kind of substance & as the temperature of a substance decreases , the molecules in that substance will move slower and closer together | the molecules in water will move slower and closer together |
the water is absorbing sunlight & if a substance absorbs solar energy then that substance will increase in temperature & water is a kind of substance | the water will increase in temperature |
the water will increase in temperature & temperature is a measure of heat energy | the water will increase in heat energy |
the water will increase in heat energy & evaporation means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | the water will evaporate |
boiling causes the volume of a liquid to decrease & the water was boiled & water is a kind of liquid at room temperature | the volume of water decreased |
if something is in the sunlight then that something will absorb solar energy & a puddle is in the sunlight | the puddle will absorb solar energy |
the puddle will absorb solar energy & if a substance absorbs solar energy then that substance will increase in temperature & a puddle is a kind of body of water & water is a kind of substance | the puddle will increase in temperature |
the puddle will increase in temperature & temperature is a measure of heat energy | the puddle will increase in heat energy |
the puddle will increase in heat energy & a puddle is a kind of body of water & evaporation means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | the puddle will evaporate and change from a liquid to a gas |
if something is in the sunlight then that something will absorb solar energy & a bucket of water is in the sunlight | the water in the bucket will absorb solar energy |
the water in the bucket will absorb solar energy & if a substance absorbs solar energy then that substance will increase in temperature & water is a kind of substance | the water in the bucket will increase in temperature |
the water in the bucket will increase in temperature & evaporation means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | the water in the bucket will evaporate |
as the amount of heat energy of a substance increases , the amount of kinetic energy will increase & the kinetic energy of water molecules are increasing | the amount of heat energy of water is increasing |
the amount of heat energy of water is increasing & evaporation means a substance changes from a liquid into a gas by increasing heat energy | water will change from a liquid into gas |
a wet towel exists & a towel is a kind of object | a wet towel is a kind of wet object |
a wet towel is a kind of wet object & a wet object contains water | a wet towel contains water |
water is a kind of liquid2 & water is a kind of liquid3 & a wet towel is a kind of object | the wet towel will absorb solar energy |
the wet towel will absorb solar energy & absorbing sunlight causes objects to heat & a wet towel is a kind of object | the wet towel will heat |
a wet towel contains water & the wet towel will heat & heating the wet towel will also heat the things it contains | the water will heat |
the water will heat & water is a kind of liquid1 | the water will increase heat energy |
the water will increase heat energy & water is a kind of liquid & evaporation means a substance changes from a liquid into a gas by increasing heat energy | the water will evaporate |
water is a kind of liquid0 & drying means the amount of liquid decreases | evaporation causes liquids to dry |
a wet towel contains water & the water will evaporate & evaporation causes liquids to dry | the wet towel will dry because the water in the towel evaporates |
if something is outside during the day then that something will receive sunlight & puddles of water are outside during the day | puddles of water will receive sunlight |
puddles of water will receive sunlight & if something receives sunlight, it will increase in temperature | the puddles of water will increase in temperature |
the puddles of water will increase in temperature & temperature is a measure of heat energy | the puddles of water will increase in heat energy |
the puddles of water will increase in heat energy & evaporation means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | the puddles of water will evaporate |
puddles of water are outside during the day & if something is outside during the day then that something will receive sunlight | puddles of water will receive sunlight |
puddles of water will receive sunlight & if something receives sunlight, it will increase in temperature | the puddles of water will increase in temperature |
the puddles of water will increase in temperature & temperature is a measure of heat energy | the puddles of water will increase in heat energy |
the puddles of water will increase in heat energy & water is a kind of substance & evaporation means a substance changes from a liquid into a gas by increasing heat energy | the puddles of water will evaporate |
water is a kind of substance & evaporation means a substance changes from a liquid into a gas by increasing heat energy | water evaporating means water changes from a liquid into a gas by increasing heat energy |
water evaporating means water changes from a liquid into a gas by increasing heat energy & a puddle is a kind of body of water | the water in the puddles changes from a liquid to gas when evaporating |
the water in the puddles changes from a liquid to gas when evaporating & gas is a kind of state of matter & liquid is a kind of state of matter | the water in the puddles changes from a state of matter to another state of matter when evaporating |
a pan is put on an open flame4 & metal is a thermal conductor | a pan is a thermal conductor |
a pan is put on an open flame0 & a flame are a part of a fire | the flame gives off heat |
the flame gives off heat & a pan is put on an open flame1 | the flame is a source of heat |
the flame is a source of heat & a pan is put on an open flame & a pan is put on an open flame3 | the pan is exposed to a source of heat |
a pan is a thermal conductor & the pan is exposed to a source of heat & if thermal conductor is exposed to a source of heat then that conductor may become hot / warm | the pan will become hot |
the pan will become hot & a pan is put on an open flame7 | the hot pan is a kind of hot object |
the hot pan is a kind of hot object & a hot object is a source of heat | the hot pan is a source of heat |
the hot pan is a source of heat & a pan is put on an open flame3 & an ice cube is placed in the pan | the ice cube in the hot pan is exposed to a source of heat |
the ice cube in the hot pan is exposed to a source of heat & a pan is put on an open flame5 & a pan is put on an open flame6 | the ice cube in the hot pan will become hot |
the ice cube in the hot pan will become hot & a pan is put on an open flame2 & becoming hot means increasing in heat energy | a pan is a thermal conductor0: the ice cube will melt and change into water in hot the pan |
a pan is a thermal conductor0 & the hot pan is a source of heat | a pan is a thermal conductor1: the water from the melted ice cube in the pan is exposed to a source of heat |
a pan is a thermal conductor1 & if a substance is exposed to a source of heat then that substance may become hot / warm | a pan is a thermal conductor2: the water from the melted ice cube will become hot |
a pan is a thermal conductor2 & evaporation means a substance changes from a liquid into a gas by increasing heat energy & becoming hot means increasing in heat energy | the water from the melted ice cube will then evaporate |
in the salt water solution , the solvent is water & in the salt water solution , the solvent is water0 | if the water in the salt water solution evaporates, then the solute of the solution will remain |
if something is in the sunlight then that something will absorb solar energy & salt water is placed in sunlight for a day | the salt water will absorb solar energy |
the salt water will absorb solar energy & in the salt water solution, the solvent is water | the water in the salt water solution will absorb solar energy |
the water in the salt water solution will absorb solar energy & if a substance absorbs solar energy then that substance will increase in temperature | the water in the salt water solution will increase in temperature |
the water in the salt water solution will increase in temperature & temperature is a measure of heat energy | the water in the salt water solution will increase in heat energy |
the water in the salt water solution will increase in heat energy & evaporation means a substance changes from a liquid into a gas by increasing heat energy & water is a kind of substance | the water in the salt water solution will evaporate |
if the water in the salt water solution evaporates, then the solute of the solution will remain & the water in the salt water solution will evaporate | the solute of the salt water will remain after water evaporates |
the solute of the salt water will remain after water evaporates & in the salt water solution , the solute is salt | the salt in the salt water will remain after the water evaporates |
water is a kind of substance & freezing means a substance changes from a liquid into a solid by decreasing heat energy | water freezing is when water changes from a liquid to a solid |
moisture is water in liquid form & there is moisture on the surface of the airplane | there is water on the surface of the airplane |
an airplane is climbing in the sky & climbing increases altitude | the airplane is increasing in altitude |
the airplane is increasing in altitude & as altitude increases , the temperature of the air will decrease in the troposphere | the temperature of the air decreases when the altitude of the airplane increases |
there is water on the surface of the airplane & the temperature of the air decreases when the altitude of the airplane increases | the water on the surface of the airplane will decrease in temperature |
the water on the surface of the airplane will decrease in temperature & water is a kind of substance & freezing means a substance changes from a liquid into a solid by decreasing heat energy & water is in the solid state , called ice | the water on the surface of the airplane will freeze into ice |
a freezer is used for cooling things & water is put in the freezer | the water will be cooled in the freezer |
the water will be cooled in the freezer & cooling means removing heat | cooling water will remove the heat from water |