1 min 52 sLessons · Grade 9 · Science
Grade 9 Science lessons
31 short narrated lessons for Grade 9 Science in British Columbia's curriculum, in the order the curriculum lists them. Each page has the lesson's full transcript, where it fits, and practice questions on lessons that have them. Two lessons are free to watch on the website without an account; signing in is free, no payment and no card.
Strand
Biology
9 lessons
- 1 min 52 s
1 min 51 sThe Stages of Mitosis: One Cell Becomes Two
1 min 51 s · BC9-SC-02
1 min 46 sFission, budding and spores: reproducing without a partner
1 min 46 s · BC9-SC-03
1 min 50 sCloning and Grafting: Making Copies of Living Things
1 min 50 s · BC9-SC-04
1 min 53 sMeiosis: Making Sex Cells with Half the Chromosomes
1 min 53 s · BC9-SC-05
1 min 47 sMitosis and Meiosis Side by Side
1 min 47 s · BC9-SC-06
1 min 53 sAsexual or Sexual Reproduction: Fast Copies or New Variety
1 min 53 s · BC9-SC-07
1 min 55 sEnergy flow: how sunlight powers a food chain
1 min 55 s · BC9-SC-24
1 min 47 sBioaccumulation and Biomagnification: Toxins Up the Food Chain
1 min 47 s · BC9-SC-30
Strand
Chemistry
8 lessons
1 min 49 sHow the periodic table is organized: periods and groups
1 min 49 s · BC9-SC-09
1 min 47 sMetals, Non-metals and Metalloids
1 min 47 s · BC9-SC-10
1 min 51 sChemical families: alkali metals, halogens and noble gases
1 min 51 s · BC9-SC-11
1 min 54 sAtomic Size: Bigger Down a Group, Smaller Across a Period
1 min 54 s · BC9-SC-12
1 min 54 sBohr Diagrams: Electrons in Shells and Valence Electrons
1 min 54 s · BC9-SC-13
1 min 52 sIonic bonds: when atoms give and take electrons
1 min 52 s · BC9-SC-14
1 min 55 sCovalent bonds: when atoms share electrons
1 min 55 s · BC9-SC-15
2 min 5 sNaming Compounds and Writing Their Formulas
2 min 5 s · BC9-SC-16
Strand
Physics
6 lessons
1 min 51 sA Complete Circuit: Source, Load, Conductors and Switch
1 min 51 s · BC9-SC-17
1 min 52 sSeries and Parallel Circuits
1 min 52 s · BC9-SC-18
1 min 47 sShort Circuits: Why a Shortcut for Current Is Dangerous
1 min 47 s · BC9-SC-19
1 min 48 sAC and DC: Two Ways Current Can Flow
1 min 48 s · BC9-SC-20
1 min 53 sOhm's Law: V = I × R
1 min 53 s · BC9-SC-22
1 min 50 sCurrent or Voltage: What Makes Electricity Dangerous?
1 min 50 s · BC9-SC-23
Strand
Earth science
8 lessons
1 min 47 sHow the Sun Drives Winds and Ocean Currents
1 min 47 s · BC9-SC-25
1 min 44 sThe Sun Powers the Water Cycle
1 min 44 s · BC9-SC-26
1 min 54 sThe Carbon Cycle: Sources and Sinks
1 min 54 s · BC9-SC-27
1 min 45 sThe Nitrogen Cycle: From Air to Living Things
1 min 45 s · BC9-SC-28
1 min 47 sThe Phosphorus Cycle: From Rock to Life and Back
1 min 47 s · BC9-SC-29
1 min 50 sDynamic equilibrium: balanced but always changing
1 min 50 s · BC9-SC-31
1 min 9 sThe Greenhouse Effect
1 min 9 s · BC9-SC-32
2 minHow People Tip the Carbon Balance
2 min · BC9-SC-33
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