# Location: **N° ` .", E° ` ."**

To define the coordinates of this point, you have to solve the tasks, that are hidden under the question marks.

Suitable for: Grade 9th

- Electric and magnetic phenomena connection.
- Simple mechanisms.
- Symmetry center, symmetry axis, central symmetry, axial symmetry.
- Substance classification.
- Hydrocarbon multiplicity, structure and nomenclature.
- Electrification of a body and interaction of bodies electrification.
- Electrical connection usage.
- Equation system concept
- Quotient
- Obtaining metal from oxides. With chemical reaction equations.
- Peak, edge, side, prism (straight and regular) pyramid (also regular), cylinder, cone, sphere, globe.
- Fixture surface area, surface layout, figure volume.
- The transformation of energy.
- Types of information transmission.
- Electrification of a body and interaction of bodies electrification.
- Similar triangles perimeter and similar triangle areas ratio.
- Processes in stars.
- Elements in suns system.
- Energy usage in life.
- Energy and environment problems.
- Variation, combination
- Electrical circuit characteristics and Ohms law in circuit.
- Substance classification.
- Circle area, sector its area, segment.
- Operations with algebraic fractions
- Equation with two unknowns (either 1 or 2 degree)
- Simple mechanisms.
- Triangle similarity signs.
- Circumference length, arc length.
- Difference
- Substance transformation. Chemical reaction types.
- Equation diagram
- Quadratic equation solution
- Sum formula
- Equation diagram
- Processes in stars.
- Quotient
- Energy usage in life.
- Types of information transmission.
- Different electromagnetic wave usage.
- Probability
- Concept of numerical chain