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# Science

This course enables students to develop their understanding of basic concepts in biology, chemistry, Earth and space science, and physics, and to relate science to technology, society, and the environment. Throughout the course, students will develop their skills in the processes of scientific investigation. Students will acquire an understanding of scientific theories and conduct investigations related to sustainable ecosystems; atomic and molecular structures and the properties of elements and compounds; the study of the universe and its properties and components; and the principles of electricity. Prerequisite: Science 8

# Properties & Characteristics

## Density is calculated as:

$density = \dfrac{mass}{volume}$

# Earth & Space Science: the Universe

## You know that the distance from the Sun to the planets is very far. So, the term astronomical unit (AU) is used to simplify this very far distance.

 Planet Astronomical Units (AU) Venus 0.39 Earth 1.00 Mars 1.52 Neptune 30.06

# Physics: Electricity

## Match the correct equations with the type of circuits below.

1. RT = R1 + R2 + ...
2. $\dfrac{1}{R_T} = \dfrac{1}{R_1} + \dfrac{1}{R_2} + ...$
3. VT = V1 + V2 + ...
4. VT = V1 = V2 = ...
5. iT = i1 + i2 + ...
6. iT = i1 = i2 = ...

V = I · R

kW·h

# Scientific Investigation and Exploration

### What is the most appropriate scientific unit of measurement for the mass of a Turkey? Solution Pounds Ounces Grams Grains The most accepted unit in science is generally based on the metric system. Kilograms are SI units, so grams is the closest and most appropriate.

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