The Sound Activity

On Tuesday I learnt about sound and making sound on an online science lab. What I did was try to match the pitch. I made the sound waves big and small. The small sound waves make a high pitch and the big sound waves make a lower pitch. Sometimes in the activity the pitch makes and high note or a low note. How I did the activity is I moved the arrow to a line and checked what sound it made by pressing the hand. When I thought that it was the right pitch I pressed the check button.