Term
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Definition
| it is the amount of surface enclosed within its boundary lines. |
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Term
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Definition
| it is the amount of space taken up by an object! |
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Term
| how can you measure volume? |
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Definition
| multiply the length by width by height! |
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Term
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Definition
it is the mass per unit volume! =devidd volume into mass = mass over volume
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Term
| how do you find the density of an irregular solid? |
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Definition
- find out the mass of the volume by putting it on an electric balance.note the reading!
- find out the volume of the irregular solid by 1.fill up an overflow can just up to the top where the water falls out.2. wait until 1 drop drops out! 3. place a measuring cylinder underneath the overflowcan. 4. place the irregular solid into the overflow can with a string wrapped around it! 5. read the volume of the liquid!
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Term
| what are burettes and pippettes used for ? |
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Definition
| to transfer a definite amounts of liquid. |
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Term
- what is the unit and symbols of the following.
- length
- mass
- time
- temperature
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Definition
1.length = metres = symbol =m
2.mass = kilogram = symbol = kg
3.time = seconds = symbol = s
4.temperature = degrees celsius = 0 |
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Term
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Definition
| deals with how and why things behave as they do ! |
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Term
| how do scientists collect evidence? |
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Definition
| by observing and using information collected by other scientists! |
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Term
| what is the mass of the object! |
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Definition
| it is the amount stuff in it and the amount of matter in it |
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Term
| how is the mass of an object found ? |
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Definition
| by using a balance or scales! |
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Term
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Definition
| by A stopwatch or stopclock |
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Term
| how is the temperature of an object measured? |
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Definition
| how hot or cold the object is! |
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Term
| what is temperature measured with! |
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Definition
| a thermometer or a temperature sensor! |
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Term
what is the melting point of
1. melting point of ice
2. boiling point of water
3. normal temperature of human body! |
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Definition
1. 0 degrees celsius
2.100 degrees celsius
3. 37 degrees celsius |
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Term
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Definition
| it is used to seperate an insouble liguig using a material that allows the liquid to pass through e.g soil and water,rocksalt , pure water from sea water. |
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Term
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Definition
| it is when a liquid is changed to a gas e.g salt and water |
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Term
| what is simple distillation? |
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Definition
| to seperate a liquid and a soluble solid e.g pure water from sea water. |
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Term
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Definition
| is used to seperate mixtures of substances in solution. |
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