Macdonald educational

Macdonald Educational – What plastics will do

02:08

Macdonald Educational – What are plastics

01:41

Macdonald Educational – Plastics at the seaside

02:14

Macdonald Educational – Plastics are everywhere

02:12

Macdonald Educational – Some common plastics

02:07

Macdonald Educational – Plastics and electricity

01:15

Macdonald Educational – How can you recognise plastics

01:15

Macdonald Educational – Contamination of plastics

01:12

Macdonald Educational – Making the plastics themselves

01:21

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