Do you know the difference between water vapour and steam?

Watch this video to learn about the difference between water vapour and steam:

Making Supposition

Watch this video to learn more about Making Supposition:

Planet or plastic?

Heart breaking to see such negative impact of man on the environment.

click pic to view webpage

Theme: Interactions (Upper Block)
Topic: Man's impact on the environment

Some answers for your Reproduction in Plants topical practice booklet

How does position affect the size of the shadow?

Check this out (click on image below to go to the simulation)

From the drop-down menu, choose "light travel in a straight line".

You can shift the light source, the object and the screen to change the distances between them.

Reproduction in plants and reproduction in humans - revision and comparison

Summary for reproduction in plants