Sunday, December 23, 2012

Separating Solids

     In science the students are learning about different types of mixtures.  We started by looking at solid mixtures.  The students worked in groups to separate their solid mixture.  Everyone was given containers with sand, stones, and marbles mixed together.  They were also given sifters and funnels.  Working together the groups had to figure out how they could separate the mixtures.




     This past week we went to the Science Lab to look at what happens to solids when they are put in water.  Everyone was able to drop a solid into the water.  The students discovered that some of the solids floated, some sank, and some, salt, mixed with the water.
     Later in the week we also saw what happens when liquids mix with water.  We added vinegar, vegetable oil, and blue coloring to different containers of water and saw that some mixed with the water, while others did not.

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