Index of /activity/grade8/science/sci_sound_grade8/images/page2

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[IMG]wavelength.png2026-02-09 15:50 10K 
[IMG]trough.svg2026-02-09 15:50 2.4K 
[IMG]soundwave.png2026-02-09 15:50 8.3K 
[IMG]diywavelength.png2026-02-09 15:50 12K 
[IMG]crestandtrough.png2026-02-09 15:50 11K 
[IMG]crest.svg2026-02-09 15:50 2.7K 
[IMG]amplitude2.png2026-02-09 15:50 8.1K 
[IMG]amplitude1.png2026-02-09 15:50 8.1K