Parents take a Science lesson!!

On April 19 prospective Yr 7 parents visited SJI International to see how we teach. They were involved in several lessons from all subjects and the photos below show them engaed in a science lesson. Some made comment that it was the first time they had been in a science lab for more than 30 years! As you can see they seemed to really enjoy being back.

The scanning electron microscope

The scanning electron microscope (SEM) is capable of creating images of the surfaces of objects at very high magnification. It's amazing the detail that can be seen using this piece of equipment.

Have a look at these images and try to guess what they are of (the answers are at the bottom of this post)

1. (image width approx. 1mm)

2. (image width approx. 0.010mm)

3. (width of bottom image 0.025mm)

4. (image width 1mm)

5. (image width 0.015mm)



Answers:

1. A seed of the tabacco plant

2. Pollen grains from many types of flowers

3. E = red blood cells L=white blood cell

4. The gills of a fish

5. Cholera bacteria