Grade 6: Science
TERM 1 UNIT 1: THE ENVIRONMENT
About the Unit
In this Unit, students will learn about climate change, its effects and ways of stemming it. They will explore the nature of solid waste pollution and identify ways in which this problem can be alleviated. In addition, they will study the causes of soil degradation, the methods of preventing soil degradation, and appreciate the importance of caring for the environment.
Range of Content
- The environment is all the physical surroundings on the Earth, including all living and non-living things, and which affects life on earth. Deserts, forests, wetlands, grasslands, marine, freshwater and tundra are examples of environments which differ in vegetation, animal life, soil and terrain and climate.
- Conserving the environment means trying to preserve natural resources so they will still be around in the future.
- The activities of people may affect the environment in good and bad ways. Human activities have caused serious environmental problems which have changed the earth and its climate, and have impacted the health of many living things.
- Climate change is a change in Earth’s overall average weather. Climate change is caused by an increase in the average temperature of the earth’s atmosphere due to the trapping of heat energy in the atmosphere.
Climate change has several detrimental effects including: harsher weather conditions (e.g. droughts), increased flooding (due to rising sea levels), distortion of the natural habitats and lives of many plants and animals.
- The effects of climate change may be mitigated through several practices such as: conserving energy, conserving water, recycling, and planting trees.
- Pollution is anything that damages or contaminates the environment. Solid waste is unwanted solid materials such as garbage, paper, plastics, metals, and wood. Solid waste is produced in homes, schools, and businesses (e.g. factories, farms, mines).
- Solid waste pollution is a threat to public health and the environment, and is a contributor to climate change.
- To minimise consequences of solid waste pollution on humans and the environment, solid waste should be properly managed. This includes its collection and transport to landfills (areas where garbage is buried) for processing or disposal, and monitoring of waste materials.
- The production of solid waste can be reduced through several methods including: recycling, proper disposal of garbage, composting.
Soil degradation is the weakening of the quality of soil as a result of human behaviour or severe weather conditions. Drought, flooding and human activities, such as deforestation, poor agricultural practices and urbanization, can all put pressures on fertile land, causing the soil to become degraded or polluted.
- Lectures 17
- Quizzes 12
- Duration 50 hours
- Skill level All levels
- Language English
- Students 48
- Assessments Yes
Term 1 Unit 1: The Environment
In this Unit, students will learn about climate change, its effects and ways of stemming it. They will explore the nature of solid waste pollution, and identify ways in which this problem can be alleviated. In addition, they will study the causes of soil degradation, the methods of preventing soil degradation, and appreciate the importance of caring for the environment.
Term 1 Unit 2: Light and Sound
In this unit, students will investigate the nature of light and sound energy, and how they interact with various materials. They will identify sources of noise pollution, note the harmful effects on humans and be aware of mitigation strategies.
Term 2 Unit 1: Materials properties and uses
In this unit, students continue to learn about the names, properties and uses of everyday materials begun at the lower grades, are clear about safety at all times, and recognise that materials are handled, stored and disposed of in different ways depending on their properties. Students will plan investigations; including controlling variables where appropriate e.g. fair tests. Students will differentiate between reversible and irreversible changes. They will evaluate, through investigations, whether or not particular changes are reversible. They will assess the usefulness of some reversible and irreversible changes in everyday situations.
Term 2 Unit 2: Human Body Systems
In this Unit, students will learn about selected human body systems. Through observations, demonstration and research they will identify the organs associated with each system and state their functions. Range of Content • The main structures and functions of selected human body systems Circulatory system (Heart, blood, blood vessels). The main job of the circulatory system is the transporting materials throughout the body. It carries nutrients, oxygen and water to different parts of the body and removes waste. Digestive system (mouth, oesophagus, stomach, small intestine, large intestine). The digestive system helps to break down food into a form that the body can find useful. Excretory system (kidney, bladder, skin, lungs). Substances that may be harmful to the body are removed through the excretory system. Nervous system (brain, spinal cord, nerves). The nervous system controls the body's actions. Reproductive system (penis, testes, vagina, ovary, uterus/womb). The reproductive system is responsible for producing offspring. Respiratory system (nose, trachea, lungs). The respiratory system produces energy from food. Skeletal and muscular systems (muscles, bones, joints). The muscular and skeletal systems work together to help the body to move. The skeletal system also protects major organs throughout the body.
Term 2 Unit 3: Mixtures
In this unit, students will learn that substances can be combined to form mixtures. They will classify mixtures according to their properties. They will learn to work cooperatively and develop problem solving skills as they investigate specific methods of separating mixtures. Range of Content • Substances combine to form mixtures • Types of mixtures include solutions, suspensions, and colloids • Mixtures can be physically separated based on size of particles, magnetic properties and how readily they dissolve • Methods of separating mixtures include filtration, evaporation, sieving, and decanting
Term 3 Lesson 1 _ Nutrition and Drugs
Term 3 Lesson 2 - April 29, 2020
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