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a field is a kind of environment & an insect usually has a small size -> an insect in a field is an example of a small <mask> in an environment | thing |
a field is a kind of environment & an insect usually has a small size -> an insect in a field is an example of a small thing in an <mask> | environment |
an insect in a field is an example of a small thing in an environment & observing small things in an environment is difficult -> <mask> an insect in a field is difficult | observing |
an insect in a field is an example of a small thing in an environment & observing small things in an environment is difficult -> observing an <mask> in a field is difficult | insect |
an insect in a field is an example of a small thing in an environment & observing small things in an environment is difficult -> observing an insect in a <mask> is difficult | field |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> <mask> glass can be used to see an insect by making it appear bigger | magnifying |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying <mask> can be used to see an insect by making it appear bigger | glass |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be <mask> to see an insect by making it appear bigger | used |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to <mask> an insect by making it appear bigger | see |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an <mask> by making it appear bigger | insect |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an insect by <mask> it appear bigger | making |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an insect by making it <mask> bigger | appear |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a <mask> lens can help seeing the insect by magnifying the insect | hand |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand <mask> can help seeing the insect by magnifying the insect | lens |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can <mask> seeing the insect by magnifying the insect | help |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can help <mask> the insect by magnifying the insect | seeing |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can help seeing the <mask> by magnifying the insect | insect |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can help seeing the insect by <mask> the insect | magnifying |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can help seeing the insect by magnifying the <mask> | insect |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to <mask> the legs of an ant requires seeing the ant | count |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to count the <mask> of an ant requires seeing the ant | legs |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to count the legs of an <mask> requires seeing the ant | ant |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to count the legs of an ant <mask> seeing the ant | requires |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to count the legs of an ant requires <mask> the ant | seeing |
counting something usually requires seeing that something & we need a tool to count the legs of an ant -> to count the legs of an ant requires seeing the <mask> | ant |
an insect usually has a small size & an ant is a kind of insect -> an <mask> is small in size | ant |
an insect usually has a small size & an ant is a kind of insect -> an ant is <mask> in size | small |
an insect usually has a small size & an ant is a kind of insect -> an ant is small in <mask> | size |
an ant is small in size & seeing small things is difficult -> <mask> an ant is difficult because an ant is small in size | seeing |
an ant is small in size & seeing small things is difficult -> seeing an <mask> is difficult because an ant is small in size | ant |
an ant is small in size & seeing small things is difficult -> seeing an ant is difficult because an <mask> is small in size | ant |
an ant is small in size & seeing small things is difficult -> seeing an ant is difficult because an ant is <mask> in size | small |
an ant is small in size & seeing small things is difficult -> seeing an ant is difficult because an ant is small in <mask> | size |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> <mask> glass can be used to see an ant by making it appear bigger | magnifying |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying <mask> can be used to see an ant by making it appear bigger | glass |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be <mask> to see an ant by making it appear bigger | used |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to <mask> an ant by making it appear bigger | see |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an <mask> by making it appear bigger | ant |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an ant by <mask> it appear bigger | making |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger -> magnifying glass can be used to see an ant by making it <mask> bigger | appear |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> <mask> glass can be used to count the legs of an ant by making the ant appear bigger | magnifying |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying <mask> can be used to count the legs of an ant by making the ant appear bigger | glass |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be <mask> to count the legs of an ant by making the ant appear bigger | used |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to <mask> the legs of an ant by making the ant appear bigger | count |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to count the <mask> of an ant by making the ant appear bigger | legs |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to count the legs of an <mask> by making the ant appear bigger | ant |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to count the legs of an ant by <mask> the ant appear bigger | making |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to count the legs of an ant by making the <mask> appear bigger | ant |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger -> magnifying glass can be used to count the legs of an ant by making the ant <mask> bigger | appear |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a <mask> lens can be used to count the legs of an ant | hand |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a hand <mask> can be used to count the legs of an ant | lens |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can be <mask> to count the legs of an ant | used |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can be used to <mask> the legs of an ant | count |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can be used to count the <mask> of an ant | legs |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass -> a hand lens can be used to count the legs of an <mask> | ant |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the <mask> of a branch is a measure of distance from one end of the branch to the other end | length |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a <mask> is a measure of distance from one end of the branch to the other end | branch |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a <mask> of distance from one end of the branch to the other end | measure |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a measure of <mask> from one end of the branch to the other end | distance |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a measure of distance from <mask> end of the branch to the other end | one |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a measure of distance from one <mask> of the branch to the other end | end |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a measure of distance from one end of the <mask> to the other end | branch |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object -> the length of a branch is a measure of distance from one end of the branch to the other <mask> | end |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a <mask> stick can be used to measure the length of a branch | meter |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a meter <mask> can be used to measure the length of a branch | stick |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a meter stick can be <mask> to measure the length of a branch | used |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a meter stick can be used to <mask> the length of a branch | measure |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a meter stick can be used to measure the <mask> of a branch | length |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length -> a meter stick can be used to measure the length of a <mask> | branch |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the <mask> of a dime is a measure of length through the center of the dime | diameter |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the diameter of a <mask> is a measure of length through the center of the dime | dime |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the diameter of a dime is a <mask> of length through the center of the dime | measure |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the diameter of a dime is a measure of <mask> through the center of the dime | length |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the diameter of a dime is a measure of length through the <mask> of the dime | center |
a dime is circle in shape & diameter is a measure of length through the center of a circle -> the diameter of a dime is a measure of length through the center of the <mask> | dime |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length -> a <mask> can be used to measure the diameter of a dime | ruler |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length -> a ruler can be <mask> to measure the diameter of a dime | used |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length -> a ruler can be used to <mask> the diameter of a dime | measure |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length -> a ruler can be used to measure the <mask> of a dime | diameter |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length -> a ruler can be used to measure the diameter of a <mask> | dime |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> <mask> a material when building a doghouse requires measuring length | cutting |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a <mask> when building a doghouse requires measuring length | material |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a material when <mask> a doghouse requires measuring length | building |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a material when building a <mask> requires measuring length | doghouse |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a material when building a doghouse <mask> measuring length | requires |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a material when building a doghouse requires <mask> length | measuring |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length -> cutting a material when building a doghouse requires measuring <mask> | length |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> <mask> wood when building a doghouse requires using a tape | cutting |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting <mask> when building a doghouse requires using a tape | wood |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting wood when <mask> a doghouse requires using a tape | building |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting wood when building a <mask> requires using a tape | doghouse |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting wood when building a doghouse <mask> using a tape | requires |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting wood when building a doghouse requires <mask> a tape | using |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length -> cutting wood when building a doghouse requires using a <mask> | tape |
a ruler is used for measuring the length of an object & a butterfly is a kind of object -> a <mask> can be used to measure the length of a butterfly | ruler |
a ruler is used for measuring the length of an object & a butterfly is a kind of object -> a ruler can be <mask> to measure the length of a butterfly | used |
a ruler is used for measuring the length of an object & a butterfly is a kind of object -> a ruler can be used to <mask> the length of a butterfly | measure |
a ruler is used for measuring the length of an object & a butterfly is a kind of object -> a ruler can be used to measure the <mask> of a butterfly | length |
a ruler is used for measuring the length of an object & a butterfly is a kind of object -> a ruler can be used to measure the length of a <mask> | butterfly |
a ruler can be used to measure the length of a butterfly & a metric ruler is a ruler with metric units -> a <mask> ruler can be used to measure the length of a butterfly | metric |