Sound-Literacy.

 Hey Bloggers! This week in literacy I have been reading about sound and had to write a short report on it. so here it is! :)

Sound

Today we will be looking about how sound works, I have four questions about sound, which are going to help us understand. I will be answering these four questions; What is sound? How does sound travel? Does sound work in space? Why does sound at different speeds through different materials?

What is sound? Sound is the energy things produce when they vibrate, for example, if you were to clap. Your hands would vibrate at very high speed (usually so fast, you can’t see them vibrating) The vibrations are very strong, causing the air to vibrate, so the vibrations go all through the air, eventually causing the air in your ears to vibrate, and that’s when you can hear the sound of the clap.

How does sound travel? In someway, the sound is a lot like light, Sound travels from some source, just like light, (it would come from the sun or even a lightbulb), It’s very fast and needs something to travel through/bounce off of, so it won’t work in places with no air, gas, or anything,  (like I explain in the next paragraph).

In the article, I learned that sound is like light, it needs something to travel through or bounce off of, this can be things like air, water, glass, or metal. After reading this I wondered if you could hear anything in space because there is no air or gas or anything for sound to travel through. So, can you hear in space? The answer is no, in 1660 Robert Boyle did an experiment testing if we could hear anything if we put a clock in a jar and sucked all the air out. It was proved that we could not hear anything, because there was nothing for the sound to travel through, so in space with no gas or air, you would not be able to hear anything.

Another question I formed while reading the article was, Why does sound at different speeds through different materials? Sound can travel through more solid materials because the molecules are closer together, making it easier to bounce off of solid objects, so when the vibrations bounce off a solid material, the vibrations are stronger and move faster. 

I reckon sound is very interesting, and by looking at these questions I feel like I have a better understanding of sound, and I hope you do too. 

Sources: 

https://www.explainthatstuff.com/sound.html

https://www.youtube.com/watch?v=qV4lR9EWGlY

Rocket Film :)

 Hey bloggers! this is our science film that Skylah, Ngawai, Braeden, Hana, and I made. We still need to add a few more clips and then it will be done. We have explained in the video what we were doing this term with rockets, I hope you enjoyed our rocket film :)

(it might be a bit hard to hear what we're saying, sorry) 

Have you ever launched a rocket? Thanks for watching, bye!

Probability-Maths

 Hey bloggers!

This week in maths we have been doing probability. Here is a slide of three questions that we had to answer,  we used maths trees to figure them out. I didn't finish the last question, but yeah. 

Have you learned probability in math?

What are you learning right now?