Tuesday 8th April

OK, Here are your tasks for today:

1. Again, make sure that you have read and responded to any comments Mrs Bonzo has left on your blog

2. Load the eScience2 Cd on the virtual CD drive and carry out the ‘foodwebs’ interactive. Or just open the textbook:

K:\Student\Student Access\MS – HS\Science\Grade 7 Science\Heinemann 2\eScience2.pdf

and click on the link on page 139.

Work through the interactive and use it to help you review the topic so far.

The last section of the interactive shows the organisms arranged in pyramid shape. Can you work out why (and explain in your blog) there is a bigger area for the producers than the consumers?

3. Challenge: see if you can find a simple diagram of a food pyramid (pyramid of numbers) on the internet and embed it to your blog. Can you explain why the pyramid gets smaller as it gets closer to the top? What is happening to the energy?

EXTENSION QUESTION:

Create a new post entitled ‘decomposers’.

Find an image, video or animation of an organism decomposing from the internet and embed it to your blog. Explain what is happening to the organism – where is it going? Is it just ‘disappearing’?

~ by bisdragonsscience on April 8, 2008.