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chemistry end of the year exam for year 7 cambridge IGCSE lower secondary

1. Write the chemical symbols of the following atoms [10]

Example: Flourine  = F

1. Hydrogen                             .……………..

2. Sodium                                ………………  

3. chlorine                               ….……………

4. Magnesium                         …………….…

5. carbon                                  ………………

6. nitrogen                               ………………

7. potassium                            ………………

8. sulfur                                   ………………

9. oxygen                                ……………….

10. calcium                              ………………

2. Matter is made up of particles that are in a continuous state of motion. Describe how particles in the following move [3]

1. solids …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

2. Liquids

…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

3. gases

…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

3. Give 3 differences between solids and gases. [6]

solids Liquids
1………………………………………………………………     2………………………………………………………………     3……………………………………………………………… 1………………………………………………………………     2………………………………………………………………     3………………………………………………………………

4. What is the meaning of the following? [4]

1. Melting

……………………………………………………………………………………………………………………………………………………………………………….

2. Evaporation

………………………………………………………………………………………………………………………………………………………………………….……

3. Freezing

………………………………………………………………………………………………………………………………………………………………………………

4. Sublimation

……………………………………………………………………………………………………………………………………………………………………………

5. Complete the table below to show what each item measures. [volume ,temperature,mass or time[8]

Burette                                  ……………………………

Pipette                                   …………………………….

Thermometer                      ……………………………

 Dropper                               ……………………………

Stop watch                          …………………………….

Measuring cylinder           …………………………….

Weighing machine             …………………………….

Stop clock                            …………………………….

6. complete the phrasal quiz below to match the word to its meaning. The first one has been done for you. [6]

1. sonorous                     Break easily when dropped

2. malleable                    ability to be drawn to wires

3. conductor                   do not shatter when dropped

4. shiny                          ability to  produce a ringing sound

5. ductile                       ability to reflect light

6 . strong                      ability to be hammered to shapes

7. Brittle                      to pass heat and electricity

7.name any 5 metals [5]

1……………………………………..

2……………………………………..

3……………………………………..

4……………………………………..

5……………………………………..

8.give 5 differences between metals and non-metals [10]

Metals                                                                   non-metals

1 ……………………………………..       …………………………………………..

……………………………………..       …………………………………………..

2……………………………………..       …………………………………………..

……………………………………..       …………………………………………..

3……………………………………..       …………………………………………..

……………………………………..       …………………………………………..

4……………………………………..       …………………………………………..

……………………………………..       …………………………………………..

5……………………………………..       …………………………………………..

……………………………………..       …………………………………………..

9. complete the passage below using the following words.  

diamond, electricity, iron, heat, tough, ring, polished, Cut [8]

Metals are shiny when fleshly …………………. Or ……………………….  They are strong and ………………… and if you tap them they ……………… like a bell. They are good conductors of ……………………… and ……………………….. A good example of a metal is ………………..