15/15 weeks ready · Follows the order of the Egyptian Ministry of Education and Technical Education textbook Integrated Science, First Secondary Year (Grade 10), Term 1 (English and Arabic editions, 2025–2026 printing, two units). All explanations, exercises and quizzes are Darslab’s own.
Term 1Unit 1 Aquatic Ecosystems (topics 1-1 The Hydrosphere on Planet Earth, 1-2 Chemical Properties of Water, 1-3 Physical Properties of Water, 1-4 Aqueous Solutions and Their Properties, 1-5 Biological Importance of Water, 1-6 Biological Adaptations of Organisms in the Aquatic Environment, 1-7 Effect of Atmospheric Gases on Aquatic Environments, 1-8 Effect of Light and Solar Radiation, 1-9 Effect of Water Pressure on Living Organisms, 1-10 Ecological Balance and the Role of Humans); Unit 2 The Atmosphere (2-1 Components and Layers of the Atmosphere, 2-2 Chemical Reactions in the Atmosphere, 2-3 Physical Factors and Their Effect on the Atmosphere, 2-4 The Atmosphere and the Role of Science in Its Sustainability); Term 1 review
1
الغلاف المائي ودورة الماء Unit 1 Aquatic Ecosystems, opener and introduction; 1-1 The Hydrosphere on Planet Earth: four spheres, the share of salt, fresh and frozen water, the water cycle, transpiration and excretion
الخواص الكيميائية للماء 1-2 Chemical Properties of Water: the water molecule, polarity, hydrogen bonds and boiling point, water as a universal solvent (NaCl), ionic equilibrium, hydrolysis of salts, pH and its measurement
الكثافة ونقطة ٤ °C 1-3 Physical Properties of Water (A): density, relative density, the hydrometer, what changes the density of ocean water, ocean currents, the 4 °C maximum density and why lakes freeze from the top
الحرارة والحرارة النوعية والقانون Q = mcΔt 1-3 Physical Properties of Water (B): heat and temperature, internal energy, the Kelvin scale, specific heat and Q = mcΔt with worked examples, sea breeze, latent heat of vaporisation, effects on marine organisms
المحاليل والأسموزية وأنواع الخلايا 1-4 Properties of Aqueous Solutions: solution, solvent and solute, colligative properties (lower vapour pressure, higher boiling point, lower freezing point, osmosis and osmotic pressure); start of 1-5 Biological Importance of Water: water in cells, prokaryotes and eukaryotes, the four kingdoms
الخلايا والأيض والتكيفات 1-5 Biological Importance of Water (rest): organelles, water and metabolism, enzymes; 1-6 Biological Adaptations of Organisms in the Aquatic Environment: structural, behavioural and physiological adaptations, osmotic adaptations
الغازات والضوء في الماء 1-7 Effect of Atmospheric Gases on Aquatic Environments: oxygen and carbon dioxide in water, solubility, acidification and calcification; 1-8 Effect of Light and Solar Radiation: spectrum, light zones, absorption, distribution of life
الضغط في الماء والتوازن البيئي 1-9 Effect of Water Pressure on Organisms: pressure inside a liquid, P = Pa + Pwater, swim bladders, skeletons, cell membranes; 1-10 Ecological Balance and the Role of Humans in Sustaining Aquatic Life
الغلاف الجوي: الغازات والطبقات Unit 2 The Atmosphere, opener; 2-1 Components and Layers of the Atmosphere (A): gases of the air and their importance, troposphere, tropopause, stratosphere, the ozone layer, mesosphere and the start of the thermosphere
الطبقات العليا وسرعة الإفلات والأوزون 2-1 Components and Layers (B): ionosphere, aurora, exosphere, escape velocity and Mercury; 2-2 Chemical Reactions in the Atmosphere: ultraviolet rays, ozone formation, ozone depletion and its effects, protection measures, ozone in the troposphere
مقاييس الحرارة وانتقالها والضغط الجوي 2-3 Physical Factors and Their Effect on the Atmosphere (A): heat and the three temperature scales, conduction, convection, radiation, living through freezing and heat, atmospheric pressure, standard pressure, isobars, the barometer, pressure and the body
ضغط الدم والرياح والأنسجة النباتية والرطوبة 2-3 Physical Factors (B): blood pressure, wind and wind systems, wind speed and plant tissues, humidity, effects of humidity on people and living things, osmoregulation, the data-collection activities
الاحترار العالمي وتلوث الهواء 2-4 The Atmosphere and the Role of Science in Its Sustainability (A): global warming and the greenhouse effect, ways to reduce emissions, air pollutants (carbon monoxide, sulphur and nitrogen oxides), formation of acid rain
ضرر المطر الحمضي وأجهزة التنقية والرصد والنماذج 2-4 The Atmosphere and the Role of Science in Its Sustainability (B): effects of acid rain on plants, soil and buildings, scrubbers, monitoring by satellites and weather stations, climate models, forecasting and examples
The Egyptian Ministry of Education and Technical Education (MOETE) is not affiliated with, and does not endorse, Darslab. Lessons follow the order of the Ministry’s textbooks; all explanations, exercises and quizzes are Darslab’s own. Pictures of animals, plants and objects: Twemoji, CC BY 4.0.
