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Invetigate. Learn to observe different kinds of change in matter
EduBook Organización
- 2374 visitas
In this experiment you will observe physical and chemical changes in matter. Follow the instructions carefully. Copy and complete the table below. Place a half spatula of calcium carbonate into a test…
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Nutrition: a balanced diet
Tiching explorer Organización
- 1 lo usan
- 3237 visitas
In this lesson we learn about all the food groups: carbohydrates, proteins, fats, vitamins, minerals, fibre and water. We find out why they are important and where we can find them. We can watch videos…
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Environmental Health Student Portal
Tiching explorer Organización
- 3458 visitas
This web site explores air and water pollution, chemicals and climate change. It offers experiments and projects, a teachers' section and homework help. We can also find information for careers in…
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Final self-evaluation 5 - Matter: Mass, Volume and Density
EduBook Organización
- 2357 visitas
Complete the sentences with the missing words: The of objects is measured with weighing scales. The SI unit of measurement for length is the . The square metre is the unit used for expressing surface .…
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Unit 14: Nature and society: harmony, crisis and impact
EduBook Organización
- 2350 visitas
Acid rain (n): rain that contains harmful chemicals as a result of burning fossil fuels such as coal and oil. aquifer (n): a layer of rock or earth under the ground that contains water. biodiversity…
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Match. Traditional sources of energy 01
EduBook Organización
- 2343 visitas
Which type of traditional energy source does each statement refer to? Its high calorific value means it is the most widely used form of energy. Today its use is restricted to producing thermal energy.…
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Look at the diagram and answer the questions
EduBook Organización
- 2332 visitas
Look at the diagram and answer the questions: What does the diagram show us? What are the main gases in air? Is this sentence true or false? "Approximately 99% of the air is made up of nitrogen and…
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Seed-producing plants. Angiosperms
EduBook Organización
- 2315 visitas
4.1. Angiosperms Angiosperms are plants with protected seeds that produce fruits. They have bright, colourful flowers. As well as vegetative organs (root, stem and leaves), angiosperms have…
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Spermatophytes (flowering plants)
EduBook Organización
- 2275 visitas
Characteristics of spermatophytes Spermatophytes reproduce through flowers. They are the most numerous of all the plant groups and include trees, grasses and cultivated plants. Spermatophytes are…
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Complete the sentences
EduBook Organización
- 2254 visitas
Complete the sentences: A is a spherical representation of the Earth. A is a flat representation of the Earth. The is the state of the atmosphere at a particular place and time, and the is the state of…
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