8. Sınıf İngilizce Experiments and Laboratory Studies Testi Çöz



1 )Which item is commonly used in a science laboratory?

A) pillow
B) suitcase
C) test tube
D) dishwasher
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2 )Scientists do experiments to ---- their ideas.

A) decorate
B) invite
C) refuse
D) test
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3 )Which instruction is suitable in a laboratory?

A) Wear safety goggles before starting the experiment.
B) Taste every chemical to identify it.
C) Run between the laboratory tables.
D) Mix unknown substances without permission.
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4 )A researcher writes down what happens during an experiment. What is the researcher recording?

A) invitations
B) observations
C) chores
D) accommodation
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5 )Which sequence is logical for a simple scientific study?

A) Record results → ignore the question → break the equipment → guess
B) Publish a result → do no experiment → ask a question → erase the data
C) Ask a question → form an idea → test it → record the results
D) Mix chemicals → taste them → leave the lab → form no conclusion
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6 )Experiment note: “Plant A received sunlight and water. Plant B received water but stayed in darkness. After ten days, Plant A was healthy, but Plant B was pale.” What factor did the experiment test?

A) The effect of sound on water
B) The temperature of the laboratory walls
C) The colour of the plant pots
D) The effect of light on plant growth
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7 )Why should scientists repeat an experiment under the same conditions?

A) To check whether the results are reliable
B) To change the question after every trial
C) To avoid recording any data
D) To make the equipment less safe
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8 )Laboratory report: Material: two identical ice cubes Condition 1: room temperature Condition 2: refrigerator Observation: Cube 1 melted first. Which conclusion is supported?

A) Ice never melts at room temperature.
B) Ice melts faster at a higher temperature.
C) The refrigerator was warmer than the room.
D) The two ice cubes were tested under identical temperatures.
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9 )I. Put on protective gloves. II. Read the procedure carefully. III. Pour the chemical without measuring it. IV. Report a broken test tube. Which actions follow laboratory safety rules?

A) Only III
B) I and III
C) I, II and IV
D) II, III and IV
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10 )A team changes both the amount of water and the amount of sunlight in the same plant experiment. Why is it difficult to interpret the result?

A) Plants cannot be used in any scientific experiment.
B) Every experiment must have different materials in each trial.
C) Recording more than one observation always makes results invalid.
D) They changed more than one factor, so they cannot tell which factor caused the difference.
Boş



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