Mixtures|Compounds|Chemical Bonds

Mixtures

In grade 6 students have been learning about mixtures and the different component properties they have. They have experimented with different separation methods for heterogeneous and homogeneous mixtures. Students explored a solution of diatomaceous earth and water and found that the particles had a greater density than water and settled to the bottom of the cup. The investigation of a salt water solution resulted in allowing time for the water to evaporate in order to separate the mixture. 

mixtures

 

Compounds

In grade 7 students have been learning about how elements come together to form compounds. The students were given the challenge of building a number of compounds with marshmallows and testing their peers in a game of matching. This activity helps with understanding how to read chemical formulas like C2H6O.


componds

Chemical Bonds

Students have been experimenting with how chemical bonds can form crystalline structures. As a class, students super-saturated a solution with a boron compound and suspended a material within the solution. As the solution cooled it formed a beautiful crystal structure around our material. 

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