An example of an element is 

Salt, sugar and water are examples of:

A compound is made of

The stomach is part of the digestive system

What system transports essential nutrients throughout the body

Washing daily, brushing your teeth, and wearing clean clothes is an example of good hygiene

What is the largest ocean on Earth?

What do we use to measure mass?

Matter is anything that fits in a suitcase.

Different angles of the sun's rays