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YEAR 7 CHEMISTRY QUESTIONS

1. What is matter? [1]

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

2. State the 3 states of matter and in each give an example? [3]

1……………………………………………………………………………

2……………………………………………………………………………

3……………………………………………………………………………

3. Matter is made up of very tiny particles that are too small to see. Draw 3 diagrams to show how these particles are arranged in the 3 states of matter. [3]

4. When matter is heated, it changes as shown below.

Complete the diagram by placing the following words where there is ? sign. [4]

Melting, freezing, condensation, evaporation, sublimation, reverse sublimation.

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

1. Melting

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

2. Evaporation

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

3. Freezing

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

4. Sublimation

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

6. Complete the passage below.

A solid has a fixed s……………….while a liquid takes the shape of a c……..…….

A gas moves freely while a liquid f……. towards a slope. A gas can be c…………. while liquid and solids can not be c…………..……….. [5]

7. Complete the table below to show what each item measures. [volume or temperature[5]

Burette                           ………………………………..

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

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

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

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