KS3 Science Quiz

What is the basic structural and functional unit of all living organisms?

• molecule

• organism

• atom

• cell

What type of reaction occurs when two or more substances combine to form a new substance?

• Synthesis reaction

• Neutralization reaction

• Combustion reaction

• Decomposition reaction

What is the force that pulls objects towards the center of the Earth?

• magnetism

• repulsion

• gravity

• friction

What is the flow of electric charge through a conductor called?

• electric current

• electricity stop

• magnetic charge

• static flow

What is the name for the horizontal rows in the periodic table?

• columns

• periods

• squares

• groups

What is the name for the vertical columns in the periodic table?

• categories

• rows

• groups

• families

Which organelle is known as the 'powerhouse' of the cell?

• mitochondria

• endoplasmic reticulum

• ribosome

• nucleus

What is the force that opposes the motion of objects through air or water?

• acceleration

• lift

• drag

• push

What is the property of certain substances that allows them to attract or repel each other?

• Gravitational force

• Frictional force

• Electrostatic force

• Magnetic force

What is the name for the center of an atom?

• Proton

• Neutron

• Nucleus

• Electron