MATERIALS: IRON

MATERIALS: IRON

Iron is an element; the symbol in chemistry is Fe (from the Latin ferrum). It is among the six most common elements and makes up about 5% of the earth's crust. Some plants extract from the soil minute quantities of this widely dispersed iron, which is indeed necessary to health and has medicinal properties. But in most soils iron is so thinly scattered that it is of no importance. It is only where it is concentrated in certain rocks and soils, so as to make up at least one-fifth, that it is of any importance to man as a source of metal.

Multiple Choice

among

• solo

• dentro

• tra 2

• tra + di due

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about

• circa

• sopra

• dentro

• vicino

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se ad un aggettivo aggiungo +ly, cosa si aggiunge alla traduzione italiana?

• -stato

• -zione

• -mente

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cosa significa "health"?

• salute

• sano

• terra

• crosta terrestre

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to scatter

• distinguere

• spargere

• inquinare

• spostare

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at least

• allora

• ancora

• a terra

• almeno

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rocks and soils

• rocce e semi

• rocce e suoli

• rocce e suoni

• pietre e semi

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source

• fonte, sorgente

• senza

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cosa significa "element"?

• alimento

• elementare

• elemento

• essendo

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... e "chemistry"?

• farmacia

• chimica

• chiarezza