• The learning process is entertaining and exciting
  • The solved tasks turn into coordinates
  • The chance to follow your progress
  • Along with your schoolmates and friends, go on an adventure, searching for hideouts
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2857.2. Energy and environment problems.

Tick the correct answer!

To what does this statement correspond?

The law, that determines, that common amount of the energy that is located in the closed system does not change over time, regardless of, what processes happen in the system. It means, that energy does not disappear and does not forms from the beginning, it just transforms from one energy type to another.

Efective and friendly usage of energy.
Energy and environment problems.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Operation with algebraic fractions
  2. Physics: Labour and energy.
  3. Geometry: Triangle, parallelogram, rhombus area formulas, through narrow angle sine value.
  4. Physics: Labour and energy.
  5. Algebra: Combinatorics
  6. Physics: Materials and structures
  7. Algebra: Arithmetic progression
  8. Chemistry: Polymer.
  9. Algebra: Equivalence
  10. Geometry: Symmetry center, symmetry axis, central symmetry, axial symmetry.