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Separate- keep apart from others.
We can separate sand and salt with this experiment.
Dissolve- disappear or make something disappear.
Salt dissolve in water.
Sand does not dissolve in water.
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¼Ò±ÝÀº ¹°¿¡³ì°í ÈëÀº ³ìÁö¾ÊÀ½À» ¹è¿ö¿ä.
Prepare the equipment.
Put sand and salt in a cup and mix them.
Pour some water onto the mixture and stir it.
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Put a support of a funnel on the plastic cup and place the funnel.
Make filter paper and put it on the funnel.
Put a stick in the funnel, and pour some mixture to the stick and get the mixture flow along the
stick.
After filtering the mixture, and compare the material that was passed through the filter paper with the material that was not.
When salt water is exposed to the sun for a long time, it is crystallized into salt.
We learned about salt and water are separated as water evaporates.
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Whick material dissolves in water?
Salt, sugar, and sweets.
Which material does not dissolve in water?
Sand, flour, gold, iron.
Let's draw what you seen and describe in words what happened.