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1.      Define the following ,
                            
                             (i)  Chemistry
                             
                             (ii) Laboratory
2.      People who study chemistry are known as  ...................
3.      Mention different material / objects made by application of chemistry.
                            (i)..............................

                            (ii).............................

                            (iii).............................

                            (iv).............................

                            (v)..............................
4.       Mention the importance of chemistry in your daily life.
                             (i)................................

                             (ii)...............................

                             (iii)...............................

                             (iv)..............................

                             (v)..............................
5.      (I) Define the word laboratory .

   (II) Mention at least  ten chemistry laboratory rules .
6.       Mention and explain the safety measures needed to avoid accidents in chemistry laboratory.
7.      (i) Identify possible causes of accidents in a chemistry laboratory

   (ii) Mention all the items found in a first Aid kit.
8.      Give the names of three apparatus used in a chemistry laboratory  in each of the following below;

    a) (i)Apparatus for holding thing_________,____________,_____________.

        (ii)Apparatus for taking measurements_________,____________,_________.

        (iii)Apparatus for heating  purpose _________,_____________,___________.

        (iv)Apparatus for doing chemical reactions _________,_________,_________.

   b) Give the user of each chemistry apparatus you have mentioned apparatus.
9.       (a) Define the word warning signs
 (b) Draw and label the basic chemical warning signs.
10.    a) Define the following terms;

                               (i)Heat

                               (ii)Flame


      b) Explain how Bunsen burner work ?
11.   a) Mention the types of flame.

                        (i).......................

                        (ii)......................

      b) Give the purposes of each types of a flame above.

      c) Give the difference between the types of flame above.
12.  Mention the uses of different types of flame.
13.  Draw and label ;

              (i) A Bunsen burner

              (ii) A non luminous

              (iii) A luminous
14.     Define the following terms
                       (i) scientific procedure
                       (ii) hypothesis
                       (iii)experiment
                       (iv) conclusion
                       (v) observation
15.  (a) Give the importance of scientific procedures.
   
        (b) What are the applications of scientific procedures.
16.   (a) Explain the meaning of matter.
 (b) Describe each of the three state of matter.

       (c) Explain  importance of changing one state of matter to another.
17.  Define  a) (i) chemical change.

                     (ii) physical change.

                 b) Give the characteristics of each of the above.

                 c) Give the differences between physical change and chemical change.
18.  Define   a) (i) Metal.

                (ii) Non metals.

                  b) Different between metal and non metal.
19.   Define the following  a) (i) compound

                                         (ii) mixture

                                  b) Give the differences between compound and mixtures.
20.  Define the following 
                                   a)  (i) solutions.

                                      (ii)suspensions.

                                      (iii) emulsion.

                                 b) Mention three classes of mixture.
21.  Define the following
                                 (i) Sublimation .

                                 (ii) Decantation.

                                 (iii) Filtration.

                                 (iv) Distillation.

                                 (v) Layer separation.
22.  Define the following
                                   
                                   a)  (i) Rusting
                                       (ii) Rust
                                       (iii) Air
                                       (iv) Combustion
                                       (v) Fire
                                       (vi) Fire fighting

                                  b) Mention the components of air and their percentage
23.  (a) Mention classes of fire , their burning materials and appropriate fire extinguisher.

          (b) What are the components needed to start fire .
       
          (c) What are the conditions necessary for ion to rust.
24.  (a) Classify the types of extinguisher according to the chemical they contain.

         (b) Explain with equation  how rusting occur .
        
         (c) Mention the methods of preventing rusting.

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