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Summaries - Matter and Materials
EduBook Organización
- 4070 visitas
1. The states of matter and their properties All things in nature are made of matter. Matter is made of different substances with different properties. Matter exists in three different forms or physical…
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Art at the turn of the century
EduBook Organización
- 3889 visitas
6.1. Impressionism The Impressionist movement began towards the end of the 19th century. The style of painting in this period placed a lot of emphasis on the play of light, and how it could alter a…
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Prehistory: the first humans
EduBook Organización
- 3763 visitas
What is prehistory? Prehistory is the time period that starts when humans first appeared, more than two million years ago, and continues to the invention of writing, 5500 years ago. How the first humans…
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Summaries - Light and sound
EduBook Organización
- 3750 visitas
1. Light Light is a form of energy. Light sources produce light. There are two types of light: natural light sources, like the Sun and artificial light sources, like light bulbs. Light waves travel in…
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Remember - The earth and the Moon
EduBook Organización
- 3702 visitas
We live on the planet Earth. The Earth has one satellite. It is called the Moon. The Earth and the Moon are part of the Solar System. The Solar System is made up of the Sun, the planets, satellites and…
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Check. Test yourself
EduBook Organización
- 3576 visitas
Remember what you have studied in this unit and answer the questions: Are average velocity and instantaneous velocity the same? When? Why? What effects do forces produce? Give several examples of these…
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Matter, materials and measuring
EduBook Organización
- 3549 visitas
What is matter? All the objects around us, including all living and non-living things, are made of matter. Matter is everything that has a weight and a volume. The quantity of matter that an object has…
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Introduction - Heat, light and sound
EduBook Organización
- 3525 visitas
Heat, light and sound are all around us. We can feel heat from the Sun in the summer and from a radiator in the winter. We need light to see people and objects. We get light from the Sun during the day…
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Match. Forces and their characteristics
EduBook Organización
- 3529 visitas
Match the types of forces with their characteristics. The force is perpendicular to the surface and if the surface is horizontal, its magnitude is equal to the weight of the object. Objects held by…
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End-of-unit evaluation - Matter: Mass, Volume and Density
EduBook Organización
- 3502 visitas
All objects are made up of matter. As a consequence of this, they have mass, occupy a certain volume and have a certain density. Mass, volume and density are magnitudes. This means they have values…
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