Why should we recycle mobile phones?

Rozvoj kompetencí žáků pro udržitelný rozvoj
reg. č.: CZ.1.07/1.1.28/02.0024

Worksheet 8 Answer Key

Why should we recycle mobile phones?

Task 1

You can find the following elements and materials in a mobile. Divide them in two groups – dangerous elements and usable materials:

arsenic silver berillium brominated flame retardants hexavalent chromium gold cadmium copper nickel lead palladium antimony oxide mercury copper PVC


Dangerous elements:

1 arsenic 2 berillium 3 hexavalent chromium 4 cadmium

5 brominated flame retardants 6 copper 7 nickel 8 lead

9 antimony oxide 10 mercury 11 PVC

Usable materials

1 silver 2 gold 3 palladium 4 copper

Task 2

Translate the chart in Czech

Nebezpečné složky

1 arsen 2 berilium 3 šestimocný chrom 4 kadmium

5 brómované zpomalovače hoření 6 měď 7 nikl 8 olovo

9 oxid antimonitý 10 rtuť 11 PVC

Využitelné suroviny

1 stříbro 2 zlato 3 paladium 4 měď

Task 3

Put the following numbers in a short text about recycling mobile phones in the Czech Republic.

60 1 12 – 18 2900 5 – 8 4 29 1

The average time of using a mobile in the Czech Republic is (1) 12 - 18 months.

Mobile phones are the most often exchanged electrical appliances in our country. Every
(2) 4th Czech person gets rid of it evey year. In (3) 60 % cases the reason is upgrading the mobile, it is not because of its breakdown.

In the Czech Republic there are about (4) 5 - 8million mobile phones which haven´t been recycled.

Recycling only (5) 29 mobile phones you can get (6) 1 gram of gold.To mine the same amount of gold it brings (7) 2 900 kg of waste.

When buying a new mobile you pay extra (8) 1 Czk as a recycling fee.

Tento projekt je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.