# 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

- Electrification of a body and interaction of bodies electrification.
- The transformation of energy.
- Different electromagnetic wave usage.
- Types of information transmission.
- Quotient
- Substance classification.
- Labour and energy.
- Universe structure.
- Processes in stars.
- Substance transformation. Chemical reaction types.
- Circumference length, arc length.
- Regular polygon, its perimeter and area. Regular polygon indrawn circumference, circumference drawn around regular polygon.
- Metal chemical properties.
- Triangle, parallelogram, rhombus area formulas, through narrow angle sine value.
- Different electromagnetic wave usage.
- The development of transport
- Operation with algebraic fractions
- Natural substances and products.
- Electrical circuit characteristics and Ohms law in circuit.
- Prism, pyramid, cylinder, cone height, basis. Cylinder and cone generatrix.
- Fixture surface area, surface layout, figure volume.
- Electromagnetic wave formation and spread.
- Equation with two unknowns (either 1 or 2 degree)
- peak, edge, face, prism (straight and regular) pyramid (also regular), cylinder, cone, sphere.
- Difference
- Concept of equation system
- Universe research methodes.
- Calculations by chemical reactions.
- Variation, combination
- Simple mechanisms.
- Quadratic equation solution
- Substance transformation. Chemical reaction types.
- Energy usage in life.
- Function concept recess: growth-decrease; biggest-smallest value;value interval.
- Combinatorics
- Probability
- Line segment ratio.
- The transformation of energy.
- Labour and energy.
- Numerical chain concept