Training test 2 — test. Science Test Space, Class 8.

Difficulty level:	Recomended time:
	15:00:00

Difficulty level:

15:00:00

1.	Speed of sound in different medium	2 m.
2.	Relation between the number of waves and wavelength	4 m.
3.	Range of sound waves	3 m.

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2. Training test 2