SKIN ONLINE IGCSE COORDINATED SCIENCE CLASS Parts Function Epidermis Top Layer of the skin. Provides protection against bacteria and germs Dermis The layer where most receptors are.

An electric field is a region of electrical charge. We have two types of charges that create an electric field. Positive charge and negative charge. Positive charge:.

Rotational symmetry is the number of times a shape can fit into itself when it is rotated 360 degrees about its centre. Lets look at some of.

STATIC CHARGE ONLINE IGCSE PHYSICS CLASS Static charges are electrical charges comprised of Positive and Negative charges.  Static charges do not move since it resides statically on.