Hi everyone I am going to talk about the second science unit we did! the second science unit we did was sound. These are five the properties of sound.
1.Sound travels.
2. Sound can be reflected[it can bounce off things].
3.Sound can be absorbed [it does not bounce off some things].
4.Sound can be modified [e.g. pitch and loudness].
5. Sound is caused by vibrations .
I am going to tell you some questions my teacher asked me and I answered.
- Why can you hear someone who is in a another room? because sound travels. the way it travels is because the sound reflects.
- Why do we hear echoes ? we hear echoes because of a reflect wave.
- In a recording studio the walls a covered in bumpy foam. why would they do this? because when walls are like that the sound reflects better.
- Name multiple objects we have that allow us to increase the volume of a sound . microphones and megaphones.
5. Why can we hear sounds better in air then we can underwater? because there is not enough air.
Did you know that dogs can hear way more sounds the humans can?
Pitch refers to how high or low a sound is. a flute makes a high pitch sound, where as a tuba makes a low pitch sound
Here is my ear
so the way I made this was I first cut out a lot of cardboard into a lot of different shapes and sizes then I had to hot glue the cardboard clay and stuff like that so the reason we did this was because we were learning about sound.
this is what sounds waves look like
I really liked what you did , you did a great job saying what you were doing and how to do it.
I really liked it lulu 🙂 one thing is that in the beginning I had a hard time reading some parts because it was squished together otherwise great job. I loved it.
from Maia.
WOWW coool 3d ear i like it eloise mine was not 3d because it was to hard😛