Materials (no-cost or low-cost)

Materials on Fig 1

·        Disposable syringes of different sizes (1 mL, 5 mL, 20 mL, 50 mL)

·       Plastic Pasteur pipettes (1 mL und 3 mL)

·       Dropper bottles (10 mL)

·        Injection bottles ("ampoules") with stoppers (2 mL, 5 mL)

·        Infusion bottles with stoppers (50 mL)

·        Jam jar

·        Silicon rubber tube (D/d = 4/2 mm)

Materials on Fig. 2

·        Battery (9 V)

·        Miniature solar module (9 Volt)

·        Battery clip

·        Cable with crocodile clips

·        Light emitting diode (5 V)

·        Pins

·        Pencil leads (D = 2 mm)

·        Lustre terminal clamp

Materials on Fig. 3

Drinking straw (spatula)

Blister (wellplate )

Insulated copper wire (test tube holder)

Metal closure of a sparkling wine bottle (threepod)

Tealight candle (micro burner)

Metal container of a tealight candle (burner)

Beads (white, red, black for H, O, C)      Pipette tips (yellow)

Funnel (D = 5 cm)             Forceps          Scissors

Materials on Fig. 4

Injection bottles ("ampoules"):

Wide ampoule Heparin sodium (5mL)

after cleaning, stopper

High ampoule Heparin sodium 5mL

after cleaning, stopper (5 mL)

                                                    Ampoule (2 mL), stopper