Science Fundamentals Quiz

Which of the following is the most important rule in the laboratory?

• Always wear a lab coat

• Never work alone in the lab

• Wear safety goggles when handling chemicals

• Eat and drink only after finishing your lab work

A student notices that a beaker is cracked. What should they do?

• Continue using it carefully

• Throw it in the trash

• Report it to the teacher immediately

• Try to tape it together

Which of the following is a unit of mass in the SI system?

• Gram

• Meter

• Liter

• Celsius

A cube measures 2.0 cm on each side and has a mass of 16.0 g. What is its density?

• 2.0 g/cm³

• 4.0 g/cm³

• 8.0 g/cm³

• 16.0 g/cm³

Which of the following is a physical property?

• Flammability

• Reactivity with acid

• Color

• Ability to rust

Which of the following is a chemical property?

• Melting point

• Density

• Odor

• Combustibility

Who is credited with the first modern atomic theory?

• Dalton

• Thomson

• Rutherford

• Bohr

Which atomic model proposed that electrons orbit the nucleus like planets around the sun?

• Dalton’s solid sphere

• Thomson’s plum pudding

• Rutherford’s nuclear model

• Bohr’s model

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

The number of protons in an atom is also known as the:

• Mass number

• Atomic number

• Charge number

• Isotope number