Month: December 2022

Hi everyone I am going to talk about the project the project I did with my friends  so we first got to choose a book we chose cree community here is a picture of the project we made:

The people I did it with was with my friend Lyla and my friend Samantha

our presentation worked really really well

the things that went well were like almost every thing

the things that I would want to do better next time is talk louder

 

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.

1. Why can you hear  someone  who is in a another room?                                                                                 because sound travels. the way it travels  is because the sound reflects.
2. Why do we hear echoes ?                                                                                                                                         we hear echoes because of a reflect wave.
3.  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.
4.    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