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7.experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.
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8.Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments
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9.hypothesis is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories
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10.Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of information to increase understanding of a topic or issue.
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Answer:
1. Science
2. technology
3.chemistry
4. Matter
5. scientific investigation
6. scientist
7. Experiment
8. observation
9. hypothesis
10. research
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