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1.3.3 The “Law of Conservation of Energy” states that energy can be created and destroyed. (2)

2.3.4 Give a reason for your answer in 2.3.3. (2)

1.1.3  Why does the air conditioner unit in a room have to be placed at the top of the room? (2)

1.1.1 Which one is the worst heat conductor? (2)

The basic unit of life is the __________________

Which two functional groups are found in an amino acid 

Substances that are __________________ tend to repel or dislike water.  

The study of life is called _____________________________–

The study of life is called ______________________________

Give the name of the element described in question 42  ____________________