Sheridan

Sheridan's Page

 This week we did a lot of experiments. One of my favorites was the liquid nitrogen. It was very cold so it froze everything it touched. Mr. Burtis put lettuce in there and it shattered like glass when he dropped it. Also, he put a penny in it and when he took it out he hit it with a hammer and it broke into about 5 pieces. When he put a carrot in the liquid nitrogen it froze so much that when he hit it with a hammer it didn’t even brake. This week was very fun.

This week I learned about succession. Succession is when a plant dies another one takes over. For example: if the president gets killed the vice president takes over. The president line of successors goes down through all of the people in court. Whenever the president talks in front of the congress, one person always has to go somewhere else. Every time it is a different person going to a different place.

This week I learned that biotic organism is a living organism. I also learned that if something was living but is dead, it is still biotic. For example: a leaf on a tree. If a leaf fell of a tree, it is still biotic. Also if your shirt is made of cotton it is still biotic. It’s biotic because cotton is living so is your shirt.

This week i learned that the nucleus is like the brain of the cell. I was taught this last year but I remembered again this year. I also leaned that in the nucleus, is the DNA. In toondoo I made a comic about the nucleus. The nucleus also holds the nucleolus. The nucleolus makes ribosomes. THe ribosomes either float by them selves, or atatch themselves to the rough endoplasic reticulem or ER.

Also this week i learned that on toondoo you can make comics. This week I made three comics. Two were about cell organelles and one was about the benifits about being multicellular. I think toondoo is a fun idea and an awesome way to learn. I like the way you can make a person or you can choose from the pre-loaded figures.

=Practice week 3/17/09 =

Today i learned that you can put pictures from the internet onto wikispace. I also learned that you can change the text and background color. I want to know how many pictures you can put on wikispace.