1. You shouldn’t leave your laboratory untidy after your experiments.
2. The scientists grew impatient with the bad results of his scientific research.
3. It is impossible for you to know everything in the field of science.
4. Latest developments in science help us find out more about unknown stars.
5. The researcher was undecided about announcing his scientific discovery.
6. It is improbable that fossil fuel will never run out.
7. They are trying to improve the new device because it is still imperfect.