Who first proposed the idea that matter is made up of tiny indivisible particles called "atoms"?

• Dalton

• Democritus

• Rutherford

• Lavoisier

Which scientist is known as the "Father of Modern Chemistry"?

• John Dalton

• Antoine Lavoisier

• J.J. Thomson

• James Chadwick

Which subatomic particle is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

In J.J. Thomson's cathode-ray experiment, the particles discovered were called:

• Neutrons

• Electrons

• Protons

• Alpha particles

Which scientist discovered the neutron?

• Rutherford

• Millikan

• Chadwick

• Harkins

Matter is defined as anything that:

• Occupies space and has mass

• Produces energy

• Can move freely

• Has no definite shape

Which state of matter has a definite shape and definite volume?

• Solid

• Liquid

• Gas

• Plasma

Which is an example of a physical change?

• Rusting of iron

• Digestion of food

• Melting of ice

• Burning of wood

Which mixture has a uniform composition throughout?

• Heterogeneous mixture

• Homogeneous mixture

• Suspension

• Colloid

Which state of matter is formed at extremely low temperatures, as predicted by Bose and Einstein?

• Plasma

• Gas

• BEC

• Liquid