# 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 8th

- Archimedes law.
- Substances with constant composition. Chemical formula.
- Concept of reverse proportionality.
- Parallelogram, diamond, triangle, right-angled triangle, trapeze area.
- Albraic fraction.
- Rational expression.
- Irrational numbers.
- Gravitation, friction and deformation.
- Neutralisation reactions and calculations.
- Function y=√x
- Reverse proportionality concept.
- Ultrasound, Infrasound and sound usage.
- Albraic fraction.
- Square root extraction
- Squar, properties and signs.
- Linear equalities and inequalities solution.
- Neutralisation reactions and calculations.
- Research fundamentals in physics
- Fraction multiplication and division.
- Chemical periodic table and structure of the atom.
- Concept of reverse proportionality
- Laboratory tableware and accessories.
- Spread of sound.
- Main feature of fraction
- Rational numbers.
- Atoms un ķīmiskie elementi.
- Substance consistent invariables. Chemical formulas.
- Amount of substance.
- Albraic fraction.
- Absolute and relative mistake of approximation
- Hyperbola.
- Parallelogram, diamond, triangle, right-angled triangle, trapeze area.
- Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
- Different size units.
- Rectangle, its properties and signs.
- Rational numbers.
- Chemical periodic table and structure of the atom.
- Reverse proportionality concept.
- Triangle indrawn in circumference, location of encircled circumference centre.
- Solution of linear equalities and inequalities.
- Fraction addition and subtraction.
- Research of movement.