Where is it found?
Why do we use it?
Give the three digestive juices.
What kind of mineral matter do we find in vegetables?
Why should potato parings, leaves and stalks of cabbage not be put in the dust bin or garbage pail?
What should be done with them?
Which are the most important warmth-giving foods?
Give another name for these foods?
Why are they so called?
What is combustion?