Science Day

We made electric circuits, with batteries, sirens, lights ad circuit breakers.

We listened to a coathanger banging against a hard surface. We discovered it was louder if we listened through string. This is because sound travels faster through a solid than air. 

Vibrations make sound waves we can hear. We can make the sounds loud or soft depending on how much pressure we place on finger. The pitch of the sound can also be changed by adjusting the amount of water in the glass. As you rub your finger on the rim, your finger first sticks to the glass and then slides. This stick and slide action occurs in very short lengths and produces a vibration inside the glass, which makes sound.

Class 15 had a science day. We had science in a van come to our school and in the afternoon we performed experiments. Listening to different sounds and discovering sound comes from vibrations.