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Worksheetsscience f1 dlp chp 5,6,7
Total questions: 15
Worksheet time: 9mins
Which of the following is a true statement about matters.
All matters have fixed shapes
shadows are matters
rusting is the chemical property of matters
combustion is the physical property of matters
Diagram 1 shows the movement of particles in a state of matter.
Which of the following substance experiences the movement of particles like above.
ice
water
water vapour
cooking oil
How to dissolve a solute faster in a solvent.
use solvent that is bigger in size
stir the mixture in slower rate
reduce the temperature of the solvent
increase the temperature of the solvent
Diagram 2 shows an element in the Periodic Table. Which of the following is a correct statement about the element.
it is a metal element
it is a semi-metal element
it is non-metal element
it is a noble gas
Dila wanted to extract essence oil from rose flowers. Which process should she carry out for that purpose.
sedimentation
chromatography
distillation
filtration
Diagram 3 shows the apparatus used in an experiment. Which of the following conclusion most suitable for the investigation.
electrolysis uses electricity energy from battery
the property of water is the same as property of oxygen and hydrogen
water is a chemical combination of water and hydrogen
water is a compound
Which of the following processes uses oxygen in the oxygen cycle.
I animal respiration
II rusting
III combustion
IV photosynthesis
I, II and III only
I,III and IV only
II, III and IV only
I, II, III and IV
Combustion could be avoided if one of its conditions is excluded.
Which of the following way is putting off fire by expelling oxygen.
pouring water on fire
pouring oil on fire
move inflammable materials away from fire
blowing a lit candle
Which of the following types of fire extinguisher most suitable for putting off fire caused by metals.
water
foam
dry powder
carbon dioxide
Diagram 4 shows an activity in an agriculture farm.
Which of the following pollutants are produced through the activity.
I radioactive materials
II pesticide
III chemical fertiliser
IV dust
I and II
II and III
II and IV
III and IV
section B
1. (a) Complete the diagram above with the correct processes.
i melting ii freezing
i freezing ii evaporation
i freezing ii boiling
i boiling ii freezing
1. (b)
i. A (a) is formed when two or more elements combine chemically.
1. (b)
ii. A (a) is formed when two or more elements ar compounds are mixed physically.
2. (a) Complete the missing conditions in the combustion triangle above.
i petrol ii fuel
i fuel ii heat
i heat ii petrol
i petroleum ii petrol
2. (b) Choose the correct statement.
i. All types of fires can be extinguished with water.
ii. Forest fire produces dust and soot.
i true ii false
i true ii true
i false ii false
i false ii true
