Science 30 study guide
Science 30 · Work through your exam, one topic at a time.
Science 30 is a senior secondary science course and diploma examination in Alberta, Canada, designed for students who want a science credit that connects directly to real-world issues rather than following the biology-chemistry-physics sequence of the traditional academic stream. It suits students completing high school graduation requirements, upgrading for post-secondary admission, or returning to study later in life, particularly those interested in environmental science, health, and technology policy. The exam samples four equally weighted themes: how living systems respond to their environment, chemistry and the environment, electromagnetic energy, and energy and the environment. Questions ask you to apply concepts to unfamiliar contexts - interpreting data about a pollutant, tracing energy through a food web, or reasoning about radiation dose - rather than recalling isolated definitions. The Science 30 study guide has 4 sections and about 1,214 words.
01Living Systems Respond to Their Environment
Living systems maintain internal stability through homeostasis , using negative feedback loops: a sensor detects a change, a control centre compares it to a set point, and an effector counteracts the change. Understand positive feedback as the rarer amplifying loop (e.g., oxytocin in childbirth).
317 words, about 2 min02Chemistry and the Environment
This domain links chemical behaviour to environmental issues. Candidates must understand acids and bases (pH, neutralisation, strong versus weak), oxidation and reduction , and how these explain corrosion , combustion , and photochemical smog .
308 words, about 2 min03Electromagnetic Energy
Candidates must understand the electromagnetic spectrum from radio waves through microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, and that all travel at the speed of light. Know the relationships c = fλ and E = hf , so shorter wavelength means higher frequency and higher photon energy.
300 words, about 2 min04Energy and the Environment
This domain examines how energy is produced, transformed, and used. Candidates must understand energy forms (kinetic, potential, thermal, chemical, electrical, nuclear), conservation of energy , and efficiency as useful output divided by total input.
289 words, about 1 min