Experiment set BIOLOGY 4: EAR

Description

From sound wave to auditory impression

The EAR kit allows pupils to explore the basics of human hearing with a series of simple and understandable experiments. It starts by examining in detail the construction and function of the outer ear, the bones of the middle ear and the inner ear as well as associated disorders. In further fascinating experiments, the pupils experience the complete disorientation associated with hearing with only one ear, discover the effect of swallowing when the pressure acting on the ear drum becomes too high or low, investigate the way sound is transmitted by the bones in the ear and how a stethoscope works. There is also an impressive demonstration of the physiology of the vestibular system.

Contents

01.01.10   Storage case

35.02.00  Inlay with cut-outs for apparatus, B4

16.03.10   Tuning fork, 440 Hz

16.03.40   Beater

35.04.00   Tuning fork holder

16.05.20  Glockenspiel chime, E

02.06.00   3 Bosshead clamps, M2

02.07.10   3 Cords, 50 cm, with eyelets

16.07.00   2 Table tennis balls on cord in box

16.08.00   Perspex tube with scale, A1

35.09.00   3 Hook rings

35.10.00   Connecting tube

33.11.40   Syringe, 10 ml, with Luer lock connector

01.12.00  Rod with hook, 5 cm

03.13.00   2 Wooden pendulum bob

16.14.00  Plastic funnel, A1

16.15.10   2 Cords with eyelet

16.15.20   Double ring hook

16.15.30   Oblong box

16.16.00   Short duration timer

35.17.00   2 Diaphragm capsules, OH

01.18.00  2 Stand rods, 29 cm

35.19.00   Two-piece brush

35.20.00  Silicone tube, 7 mm diam. x 290 mm

35.21.00  Silicone tube, 7 mm diam. x 50 mm

35.22.00   Three-way valve

35.22.10   Silicone tube, 5 mm diam. x 50 mm

35.23.00   Pendulum ball, large

51.25.00   Manometer tube

Experiments

B4 – 1:   Creation of sound

B4 – 2:   The outer ear

B4 – 3:   The stethoscope

B4 – 4:   The auditory canal

B4 – 5:   The auditory ossicles

B4 – 6:   The ear trumpet

B4 – 7:   The oval and round windows

B4 – 8:   Why do we need two ears?

B4 – 9:   Hearing without ears

B4 – 10: The organ of balance

B4 – 11: The semicircular canals

Images