Complete the 12 sentences below. Choose the best answer for each one.
1The ............... wore goggles before heating the liquid in the lab.
Wrong!
A person who carries out an experiment is a "researcher".
2Mia collected a small ............... of river water in a clean bottle.
Wrong!
A small amount taken to test is a "sample".
3The ............... did not receive the new fertilizer, so the class could compare the plants fairly.
Wrong!
The group that does not receive the new fertilizer is the "control group".
4In this plant experiment, the amount of light was the main ............... .
Wrong!
The factor you change or measure in an experiment is a "variable".
5Before starting, Leo wrote a ............... predicting that salt would make the ice melt faster.
Wrong!
A testable prediction made before an experiment is a "hypothesis".
6Aisha wrote down one ...............: bubbles appeared when the powder touched the vinegar.
Wrong!
Something you notice and record during an experiment is an "observation".
7The students put all their temperature ............... into a table.
Wrong!
Numbers collected during an experiment are "data".
8We described our ............... clearly so another team could repeat the experiment.
Wrong!
The steps you follow in an experiment are the "method".
9The final ............... showed that the blue paper dried in three minutes.
Wrong!
What you find after the experiment is the "result".
10At the end of the report, Sara wrote a ............... based on the results.
Wrong!
A final statement based on the results is a "conclusion".
11Please clean the ............... on your bench, including the test tubes and thermometer.
Wrong!
Tools used in an experiment are "equipment".
12To make it a ..............., we changed only the amount of sugar and kept the water temperature the same.
Wrong!
When only one thing changes and everything else stays the same, it is a "fair test".
Done.
Score: 0/12
Answers
- The researcher wore goggles before heating the liquid in the lab.
- Mia collected a small sample of river water in a clean bottle.
- The control group did not receive the new fertilizer, so the class could compare the plants fairly.
- In this plant experiment, the amount of light was the main variable.
- Before starting, Leo wrote a hypothesis predicting that salt would make the ice melt faster.
- Aisha wrote down one observation: bubbles appeared when the powder touched the vinegar.
- The students put all their temperature data into a table.
- We described our method clearly so another team could repeat the experiment.
- The final result showed that the blue paper dried in three minutes.
- At the end of the report, Sara wrote a conclusion based on the results.
- Please clean the equipment on your bench, including the test tubes and thermometer.
- To make it a fair test, we changed only the amount of sugar and kept the water temperature the same.
