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Answer. Elements and compounds 04
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What is a compound? Write the names of some compounds and their formulas.
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Answer. Pure substances and mixtures 02
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- 1305 visitas
Are ice and water different substances?
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Answer. Density 5.5
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- 1300 visitas
What procedures should we follow to measure the density of a solid?
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Final evaluation 4 - Matter: Mass, Volume and Density
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- 1309 visitas
Describe how weighing scales work.
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Answer. Aspects of the Solar System 03
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Among the planets of the Solar System, choose... ...which has the most satellites. ...which has the longest year. ...which has the longest day. ...which is the largest gaseous planet. ...which is the…
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Final self-evaluation 6 - The Earth and the Moon
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Are the following sentences true or false? A compass needle always points at the Sun's position. GPS means global positioning system. The Sun and the stars have traditionally been used to establish…
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Answer. The hydroshpere 4
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- 1306 visitas
Why is the amount of drinking water available on the planet increasingly scarce?
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Did you know?
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The surface tension of a liquid is the resistance its surface gives when an object is placed on it. The surface tension of water acts like an elastic membrane, and it can support small objects, such as…
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Answer. The water cycle 3
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What is the driving force in the water cycle?