Practice check: For everyday science, what is the chemical formula of water?

✅ D. None

✅ A. Frequency

✅ D. To keep the centre of gravity always vertically above the rope

✅ B. Mars

a: Venus | b: Mars | c: Mercury | d: Jupiter Read more

✅ A. Evaporation

a: Evaporation | b: Freezing | c: Condensation | d: Deposition Read more

✅ A. Galileo Galilei

✅ D. Pyrex glass

✅ B. Thermometer

a: Voltmeter | b: Thermometer | c: Seismometer | d: Barometer Read more