A Moldy Experience!

Posted on

Hi, this is Lilly and Claire!

Our class did a mold experiment to practice using the scientific method.  Our teacher said to pair up in groups of three for the project collaboration.  To go with the project, we made a science journal and we’re going to keep track of the results.

Here we are writing about our observations! We collaborated to get the best detail. We made our journals out of small gift bags.


First, we got a piece of bread.  We had to split the bread into three parts.  Then, we rubbed one of the pieces on a desk, one on a shoe, and the last on our tongue.  Each of us had to hypothesize which piece of bread we thought would have the most mold based off information we researched.

The petri dish with the three parts. Reminds me of a fraction!

 

After that, we put it in a petri dish.  The petri dish was split into three equal parts.  It was clear so we could see the mold as it grew.  We had to label it afterward so we knew which bread piece was which.   We put tape on the sides so it would be extra tight.  Once we had mold growing we didn’t want take the chance that it would open!  Yuck!


Look at what is happening to our bread!

Last we put it in a big black container under a desk.  We would check the mold twice a week.  It took a couple of weeks for the mold to become visible.   Once it did we were amazed at the different colors we saw!

Yummmm!

These are most of the colors we saw: yellow, black and blue-green.  We also saw white fluffy looking mold. Some people didn’t have any mold at all…my group!  Bummer!    We must be too clean.

There I am with my moldless bread! I am not looking too happy!

 

Here are some facts about mold…

There are five basic types of mold that grow on bread. The most common mold is penicillium.

Alexander Fleming discovered this mold.

Alexander Fleming

He found that this mold kills germs. He used this to make a medicine called penicillin which saved millions of lives over the last 80 years.
Mold is…
not a plant.
like mushrooms and toadstools. 
one of natures cleaners.
used as flavoring for foods such as blue cheese and soy sauce. 

What do you think would happen to our world if we didn’t have mold?

 


A Must Read by Lilly!

Posted on

Hi, I’m Lillian  and I’m in 3rd grade at Peralta Trail Elementary.

I read The Hostile Hospital.

It’s about three Baudalaire orphans who’s parents perished in a terrible fire. There new guardian is Count Olaf,  a villainous person who would do anything for the Baudalaires fortune. He ends up trying to do unnecessary surgery on the oldest Baudalaire, Violet.

I would recommend this book and the entire series because it is fun, adventurous and challenging.

Here is a video from Lemony Snickett’s picture book called 13 Words. We found it on the Lemony Snickett Official Website where he gave us the embed code for our blog.  

As you listen to the book, did you learn a new word and its meaning?  What was that word?

 


Never Get an Addition or Subtraction Problem Wrong Again!

Posted on

Mrs. Fraher went to a math class by Kim Sutton and learned about the digital root of a number. When she taught us, she gave us a challenge to try to find out the theory of doing it with subtraction on our own.  Three kids found it out- Claire,Lilly, and me, Justin. We found this song on the Internet that was written by Kim Sutton and performed by Ron Brown… this is only part of the song.

By Justin 🙂

Digital Root by Kim Sutton © 2008

performed by Ron Brown

Digital root, digital root, Can you find the digital root?
Digital root, digital root, Can you find the digital root?

The digital root of a number is the sum of all its digits.
Keep adding that sum, Until you’re done,
And a single digit is the final outcome.

That’s the digital root. Digital root, digital root,
Can you find the digital root?

Let’s take a number like 53.  Add the 5 to the 3
The sum is 8. You’re doing great.
The digital root is 8. The digital root is 8.

Our teacher challenged us to use Show Me on an iPad to teach others how to do digital roots for addition and subtraction.  Here are the problems we used digital roots for.   In order to do this, we had to create a problem, write a script so we wouldn’t forget what to do, and then we practiced until each of us knew how to do it without mistakes.  Each of us has a different kind of problem.

by Lillian

 

 

Here’s a couple questions by Claire:

Do you think digital roots will help you get better at math?  Will you get more problems correct on your test if you use digital roots?  Let us know!

 


ePals from Down Under

Posted on

ePals From Down Under       

by Justin and Lillian

ePals is a website where you can communicate with other people in different countries by sending e-mails back and fourth.    ePals is a very safe environment, and no other companies, except for ePals, can email each other.   We are partnered with Mrs. Farlam’s class in Australia, it is really fun having the ePals.   We also have ePals in Kenya, Africa but right know we are working on Port Lincoln, Australia.
http://www.epals.com/
http://australia.gov.au/
http://en.wikipedia.org/wiki/Australia
Earlier this week, Justin and I were interviewing kids in our class.   We were interviewing them to ask and learn what they learned about Australia.   Then Justin and I picked which ones we liked best.    After both of us chose which three we liked best.   We would video tape them on the I Pod Touches and have them say what they learned.
http://www.apple.com/education/ipodtouch-iphone/
Lilly and I were doing the video taping with the I-Pod touches or as Mrs. Fraher calls them I touches.   It took lots of observation to see if they were doing anything distracting in the video.   It was extra hard getting the right moment when it was quietest in the hall, and of course having everybody asking what are we doing?  It was exciting to kind of be the teacher.

Here are the videos we came up with.