7th GRADE SCIENCE : Article 36 : Types of chemical reactions and conservation of mass.
( 2/20/18 Tuesday )
* Activity 3.20 : Checking atom number and conservation of mass in chemical equations.
( 10 points ).
( 10 points ).
( 2/21/18 Wednesday )
* Activity : Field trip to Gattytown.
( 2/22/18 Thursday )
* Activity 3.21 : Achieving different kind of chemical reactions. Oxidation and precipi-
tation ones.
3.21.a Follow your teachers directions in order to check the paperclips
oxidation using a copper solution and the precipitation reaction of the
copper ( blue solid goes down) using a baking soda solution.
Materials given :
- Reaction 1 : Oxidation reaction.
Copper sulfate water solution, salt water solution,
Iron paperclip, eyedropper, small glasses.
- Reaction 2 : Precipitation reaction.
Copper sulfate water solution, Baking soda water
solution, eyedropper, plastic spoon, small glasses.
( 10 points ).
( 2/23/18 Friday )
* Activity 3.22 : Reviewing atoms and molecules.
( 10 points ).
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