When you have weird look on your face
Here is a link to a drawing of Pi. It also gives a good explanation of how it works.See related link below for a good explanation
This has got to do with the capillary effect. Look at Related link below for full explanation.
Yes it does. To see the explanation, look to the related question below.
The link below has an easy explanation.
See the link below for a more complete explanation.
Click link below for photo and explanation!
It is a chemical change. Look at the explanation below the picture of the rusting nail. With toast a new substance has been formed due to the heat which caused the chemical change.
See the related links below for the explanation.
Yes and no. For an explanation see the link below.
See the link below for an explanation.
See related link below for a very good explanation
The process of mitosis. It's a pretty lengthy explanation, so check out the link below for the explanation.