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Which bodies float on water?
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Cork is a material that floats on water. Other substances, such as stones, sink. This phenomenon is related to the different densities of the materials. If the density of an object is less than the…
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Final evaluation 5 - Matter: Mass, Volume and Density
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Decide which sentences are false and correct them. The SI unit of measurement for length is the kilomtre. The unit of measurement for surface area is derived from the unit for length. The unit for…
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Final evaluation 5 - The Universe and our Solar System
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- 1611 visitas
The minimum distance between Mercury and the Sun is 79 million kilometres. How far is this in light years?
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Match. Weather terms
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- 1588 visitas
Match each word or phrase with the correct characteristics or factor: wind hot air clouds cirrus and cumulus troposphere and stratosphere car and plane engines barometer hurricane atmospheric pressure…
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Reflect. Water 4
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What happens if you put a piece of ice in a glass of water and then you try to push it to the bottom of the glass? Why?
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Initial evaluation 3 - The Earth's Crust
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- 1613 visitas
Identify the following rocks from their characteristics: It is formed when magma or lava cools down. rock It is formed from materials deposited by rivers. rock It is formed when other rocks a subjected…
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Answer. The chemical composition of living things 2.4
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What are the different types of biomolecules that are found in living things?
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Final evaluation 9 - The Earth, a Living Planet
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- 1591 visitas
Put the following components of the organisation of living things into the correct order: biosphere – cell – comunity – organism – organ – population – system – tissue
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Learn... Insect metamorphosis
EduBook Organización
- 1608 visitas
There are two different life cycles of insects, although all insects hatch from eggs. In some cases, the insect which hatches simply grows and after several moults, becomes an adult. The majority of…
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