Science
6个单元 · 38个章节
免费的Science学习笔记，专为Junior High School学生准备。下列每个章节都涵盖一个重点主题，附有例题与练习提示，可在 thinka 应用中延伸练习。
Field 1 · Grade 1 — Physical phenomena and matter
Light and sound
Action of forces
Properties of substances and gases
Aqueous solutions and solubility
Change of state, melting and boiling points
Field 1 · Grade 2 — Electric current, chemical change
Electric current, voltage and resistance
Electrical energy, power and static electricity
Current and magnetic fields
Composition of matter: decomposition, atoms and molecules
Chemical change, oxidation, reduction and heat
Chemical change and mass
Field 1 · Grade 3 — Motion, energy, ions, science and technology
Balance, composition and resolution of forces; water pressure
Regularity of motion
Work and mechanical energy
Aqueous solutions and ions
Acids, alkalis, neutralization and salts
Chemical change and cells (batteries)
Energy, materials and the development of science and technology
Field 2 · Grade 1 — Living things and the changing earth
Observing and classifying living things
Plant bodies: shared and differing features
Animal bodies: shared and differing features
Strata, rocks and past environments
Volcanoes and earthquakes
Nature's benefits, volcanic and earthquake disasters
Field 2 · Grade 2 — Structure of organisms and weather
Living things and cells
Leaves, stems, roots; photosynthesis, respiration, transpiration
Maintaining life: digestion, respiration, circulation, excretion
Stimulus and response
Weather observation and pressure
Changes in weather: clouds, humidity and fronts
Weather of Japan and meteorological disasters
Field 2 · Grade 3 — Continuity of life, earth and space, nature and humans
Growth and reproduction of organisms
Rules of heredity and genes
Diversity of species and evolution
Celestial motion, rotation and revolution of the earth
The solar system and stars; the moon and Venus
Living things and the environment; balance in nature
Conserving the environment and using science and technology
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