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Explain. Atoms and molecules 01
EduBook Organización
- 1871 visitas
Does oxygen have molecules? What are they like? Does water have molecules? Compare them.
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Answer. Pure substances and mixtures 02
EduBook Organización
- 1878 visitas
Are ice and water different substances?
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Final self-evaluation 1.6 - Matter and Materials
EduBook Organización
- 1870 visitas
Complete the following sentences with the missing words: A group of atoms is called a . move around the nucleus of an atom. are made up of two or more different chemical elements. The formula for is…
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True or false. Measurement
EduBook Organización
- 1882 visitas
Are the following sentences true or false? Volume is an example of magnitude. To measure a magnitude, we compare it with another magnitude. To measure something we have to establish the magnitude of an…
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Answer. Density 5.4
EduBook Organización
- 1874 visitas
What measurements do we need to know to determine the density of an object?
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Calculate with multiples and submultiples - Matter: Mass, Volume and Den...
EduBook Organización
- 1881 visitas
Problem solving involving measurements is often accompanied by the use of multiples and submultiples of these units. Below are four problems to demonstrate the use of multiples and submultiples and how…
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Final self-evaluation 9 - Matter: Mass, Volume and Density
EduBook Organización
- 1873 visitas
Match each concept with a definition: mass scales density metre kilogram litre volume square centimetre
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About our planet
EduBook Organización
- 1873 visitas
2.1. The earth's layers The Earth is a rocky, almost spherical planet. Its radius is 6373 kilometres. There is a lot of activity inside the Earth. This activity is evident in the crust in the form…
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The Earth's satellite: the Moon
EduBook Organización
- 1874 visitas
3.1. General characteristics of the moon The Moon is the only natural satellite of the Earth. It is 49 times smaller than our planet. As the Moon does not have an atmosphere, the Sun's rays and the…
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Final evaluation 4 - The Hydrosphere
EduBook Organización
- 1869 visitas
Match each fact with the property of water that makes it possible: Fish can live below the ice. Sea water is salty. Coastal areas have milder temperatures than inland areas. Water circulates through rivers.
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