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# Science

This course enables students to develop a deeper understanding of concepts in biology, chemistry, earth and space science, and physics; to develop further their skills in scientific inquiry; and to understand the interrelationships among science, technology, and the environment. Students will conduct investigations and understand scientific theories related to: ecology and the maintenance of ecosystems; chemical reactions, with particular attention to acid base reactions; factors that influence weather systems; and motion. Prerequisite: Grade 9 Science SNC1D (Academic)

# EQUATIONS & REACTIONS

## Complete the synthesis reactions, then balance. (Practice naming the products in your own notes).

$A + B → AB$

# Physics: Light and Geometric Optics

## Remember the following rules when using the lens equation.

$\cfrac{1}{f} \ = \ \cfrac{1}{d_o} \ + \ \cfrac{1}{d_i}$
• do is always positive.
• di is positive for real images, and negative for virtual images.
• f is positive for converging (convex) lenses, and negative for diverging (concave) lenses.

## Remember the following rules when using the magnification equation.

$\text{M} \ = \ \cfrac{h_i}{h_o} \ = \ -\cfrac{d_i}{d_o}$
• ho and hi (height) are positive when upright, and negative when inverted.
• do (distance) is always positive.
• di (distance) is positive for real images, and negative for virtual images.
• M (magnification) is positive for upright images, and negative for inverted images.

# 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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