Learning objectives:

Work line
The teacher explains concepts of concentration
Students develop activity via classroom directed by the teacher
Evaluation next week (Tuesday 12.1, Wednesday 12.2)

Part I

What is a solution? Remember?

Simulation No.1

We’ve all heard of acids and bases, but what makes a solution acidic or basic? What do we understand by pH? The purpose of this activity is to investigate the differences between acidic and basic solutions at the molecular level. Go to the PhET simulation called “pH scale”. After the teacher’s explanation, develop the activity in the classroom where you will take a few moments to play with the simulation and see what the different buttons are. Choose the «Macro» screen.

Simulation No.2

Activity Classroom