Life Science (Grade 7) — Lessons, Skills & Practice | Pengi

Life Science is a Grade 7 science textbook that provides a comprehensive introduction to the living world, covering foundational topics from cell structure and function, DNA, genetics, and heredity to cell division and the history of life on Earth. Students explore the diversity of life through the classification of organisms, single-celled life, viruses, plants, invertebrates, and vertebrates, before advancing to body systems including support, movement, transport, digestion, and reproduction in multicellular organisms. The textbook also examines ecology at multiple scales, addressing population dynamics, ecosystems, biomes, species interactions, and the human impact on natural environments.

Life Science (Grade 7) covers 21 chapters and 69 lessons on Pengi.

Life Science (Grade 7) textbook table of contents

Chapter 1: The Cell

  • Lesson 1: The cell is the basic unit of living things.LearnPractice
  • Lesson 2: Microscopes allow us to see inside the cell.LearnPractice
  • Lesson 3: Different cells perform various functions.LearnPractice

Chapter 2: How Cells Function

Chapter 3: Cell Division

  • Lesson 1: Cell division occurs in all organisms.LearnPractice
  • Lesson 2: Cell division is part of the cell cycle.LearnPractice
  • Lesson 3: Both sexual and asexual reproduction involve cell division.LearnPractice

Chapter 4: Patterns of Heredity

Chapter 5: DNA and Modern Genetics

Chapter 6: The History of Life on Earth

  • Lesson 1: Earth has been home to living things for about 3.8 billion years.LearnPractice
  • Lesson 2: Species change over time.LearnPractice
  • Lesson 3: Many types of evidence support evolution.LearnPractice

Chapter 7: Classification of Living Things

  • Lesson 1: Scientists develop systems for classifying living things.LearnPractice
  • Lesson 2: Biologists use seven levels of classification.LearnPractice
  • Lesson 3: Classification systems change as scientists learn more.LearnPractice

Chapter 8: Population Dynamics

Chapter 9: Single-Celled Organisms and Viruses

  • Lesson 1: Single-celled organisms have all the characteristics of living things.LearnPractice
  • Lesson 2: Bacteria are single-celled organisms without nuclei.LearnPractice
  • Lesson 3: Viruses are not alive but affect living things.LearnPractice
  • Lesson 4: Protists are a diverse group of organisms.LearnPractice

Chapter 10: Introduction to Multicellular Organisms

Chapter 11: Plants

  • Lesson 1: Plants are adapted to living on land.LearnPractice
  • Lesson 2: Most mosses and ferns live in moist environments.LearnPractice
  • Lesson 3: Seeds and pollen are reproductive adaptations.LearnPractice
  • Lesson 4: Many plants reproduce with flowers and fruit.LearnPractice

Chapter 12: Invertebrate Animals

  • Lesson 1: Most animals are invertebrates.LearnPractice
  • Lesson 2: Cnidarians and worms have different body plans.LearnPractice
  • Lesson 3: Most mollusks have shells and echinoderms have spiny skeletons.LearnPractice
  • Lesson 4: Arthropods have exoskeletons and joints.LearnPractice

Chapter 13: Vertebrate Animals

  • Lesson 1: Vertebrates are animals with endoskeletons.LearnPractice
  • Lesson 2: Amphibians and reptiles are adapted for life on land.LearnPractice
  • Lesson 3: Birds meet their needs on land, in water, and in the air.LearnPractice
  • Lesson 4: Mammals live in many environments.LearnPractice

Chapter 14: Ecosystems and Biomes

Chapter 15: Interactions Within Ecosystems

Chapter 16: Human Impact on Ecosystems

Chapter 17: Systems, Support, and Movement

Chapter 18: Absorption, Digestion, and Exchange

  • Lesson 1: The respiratory system gets oxygen and removes carbon dioxide.LearnPractice
  • Lesson 2: The digestive system breaks down food.LearnPractice
  • Lesson 3: The urinary system removes waste materials.LearnPractice

Chapter 19: Transport and Protection

Chapter 20: Control and Reproduction

  • Lesson 1: The nervous system responds and controls.LearnPractice
  • Lesson 2: The endocrine system helps regulate body conditions.LearnPractice
  • Lesson 3: The reproductive system allows the production of offspring.LearnPractice

Chapter 21: Growth, Development, and Health

  • Lesson 1: The human body changes over time.LearnPractice
  • Lesson 2: Systems in the body function to maintain health.LearnPractice
  • Lesson 3: Science helps people prevent and treat disease.LearnPractice

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