Retreat Blog Post

1. What did the retreat mean to me?


I think that the retreat was a way of letting all of us kids bond. I feel that that goal was achieved, and that now I am not only closer to a lot more people in my grade, but also was able to get to know a lot of people in the grades above me. 


2. What did I learn about myself?


I learnt how to do archery.


3. What connections to science or math etc. did I find, or hear, or make, with any experience I had?


I made a connection to mutations when we were learning about sturgeons. We learnt that the sturgeons mutate in a way to blend in to their surroundings. We learnt about a case where some sturgeons mutated into logs, and when they said mutated, i thought of mutations.

The Human Genome Project Video - 3D Animation Introduction

Here is a link to the you tube video: http://www.youtube.com/watch?v=XuUpnAz5y1g


If anyone knows how to post the actual video on my blog, please tell me.

Definition of P-M-A-T

Prophase - the nuclear envelope disappears and replicated chromosomes coil into X shaped        chromosomes.


Metaphase - the tugging of the spindle fibres pulls the chromosomes into a single line across the middle of the cell.


Anaphase - the spindle fibres begin to contract and shorten. This action pulls the centromere apart, allowing the sister chromatids to move to opposite pole of the cell. Once they separate, each sister chromatin is considered a chromosome.


Telophase - final stage of mitosis. One complete set of chromosomes stand at each pole of the cell. The spindle fibres begin to disappear, and a nuclear membrane forms around each chromosome. Now there are two nuclei on one cell. The cell is ready to divide.

5 made up science questions with answers

Q1) What is a chromosome made up of? 
A: DNA


Q2) How many chromosomes are there in one human cell? 
A: 46 or 23 pairs


Q3) What organelle makes protein? 
A: Ribosomes


Q4) a) How would the bases, A, C, G and T be paired in DNA? 
A: A - T  C - G
      b) If ATTGTCACCTG was the sequence of one side of a part of DNA, what would the other side be? 
A: TAACAGTGGAC


Q5) Fill in the blank:
______ carries the information to make protein from the DNA to the ribosomes.
A: mRNA


By Mikaela (and Leora)

Mutation question answers for TB9 pg. 145

 1. It is important to protect the black Kermode bears, because black bears can carry the mutation gene for the Spirit bear.

     2. a) G is substituting for the C

         b) A is missing at the end of the sequence

         c) There is an extra G in the sequence

     3.   Positive, neutral and negative mutations.

     4.   For a whale, instead of having a blow whole on its face (nose) from a long time ago, now it has it on the top of its head. The whale adapted to its environment over time.

     5.   The mutation is bad. The cell is half of what it was before. It is a negative mutation.

     6.   Because having black or white fur does not affect the bear.

     7.   It could be a neutral or a negative mutation. For example, you have a hand, and a certain letter was taken away from the sequence of the protein, the hand won’t work.

     8.   The purpose is to replace a defective gene with a copy of the same gene to attempt to restore function.

How to get to BC Science 8 + 9 online

1. BC Science 8 Home Version - http://www.bcscience.com/bc8/pgs/enter_hv.html
2. BC Science 9 Home Version - http://www.bcscience.com/bc9/pgs/enter_hv.html
2. Click "click here to access Home Version Ebook"
3. Username: HA44. Password: SC44.

Cell = Life

Cell = Life

1.   What makes something living?

- They reproduce.
- They need energy.

- They react to their environment.

- They grow.

- They get rid of wastes.

2.   The cell is the smallest unit of life.

Cell ® ® ® ® Tissue ® ® ® ® Organ ® ® ® Organ Sytem ®

­                             - cardiac              - heart                     - digestive

Unicellular        - skin (epithinal)  - stomach         - circulatory

Organism         - muscle               - brain               - nervous

                         - nervous tissue

Organism

­

Multicellular

How is a single cell like a multicellular organism?

         - A single cell has specialized parts (organelles) to do different things.

         - A multicellular organism has specialized cells to do different things.

3. Identify the ORGANELLES of plant + animal cells. What are the JOBS?

         Animal cell:

         - Ribosome

         - Cytoplasm

- Cell membrane

         - Lysosome        

         - Golgi body

         - Nucleus

         - Vacuole

         - Mitochondrion

         - Endoplasmic reticulum

         Plant cell:

         - Mitochondrion

         - Cytoplasm

         - Endoplasmic reticulum

         - Chloroplast

         - Ribosomes

         - Golgi body

         - Cell membrane

         - Vacuole

         - Nucleus

         Jobs:

- Ribosome: Make proteins

         - Cytoplasm: Holds organelles, water, and other life supporting things Ariel- “Everything in a cell in the area between the nucleus membrane and cell membrane”

         - Cell membrane: Surrounds each cell to separate the inside of the cell to what’s around it

         - Lysosome: Recycle broken down organelles

         - Golgi body: Sorts protein into vesicles (wrapped membrane)

         - Nucleus: Controls what goes on inside the cell

         - Vacuole: Temporarily store waste sometimes

         - Mitochondria: Make energy

         - Endoplasmic reticulum: Transports protein from ribosomes to the Golgi body

         - Chloroplast: (only in plant cells) Changes the energy from the sun into chemical energy

First post

Science!!! 

Science is going to be really cool this year. We are using twitter and blogger and were told to take pictures during classes and many more tech things. Science this year is going to be very different to my science classes in the past. We always learnt in science by reading text books and having tests on what we read. But by being hands on and using all this tech stuff, I think we are going to learn a lot more.

I can't wait for the rest of the year of science!

-Mikaela