How can a slinky be used to demonstrate sound waves?

Meiosis is the second form of cell division we have looked at and it happens to make sperm and eggs, which have half the normal chromosome number of the organism.

Notes and HOMEWORK can be viewed here, and you can also view an animation.

H/W should be completed by friday

We are now starting some revision on the key topic of particles.

Have a look at this animation on solids, liquids and gases

A genetically-modified (GM) strain of malaria-resistant mosquito has been created that is better able to survive than disease-carrying insects.

Today we cloned cauliflower by tissue culture. We will leave these somewhere warm and light for a few weeks and observe what happens to them.

Why did we place the cauliflower in bleach and use sterilised forceps?

We also had a look at the technique that cattle farmers use called embryo transplantation. This is a method of cloning animals.

Have a look at a slideshow about embryo transplants by clicking on the link below

Cloning animals

Now look at pages 16 and 17 of your workbook and answer the questions

Got a few minutes? How much cash can you get on the physics millionaire?

Click the link to find out.

millionaire_physics.ppt