Science Quiz

Which layer of Earth's atmosphere is closest to the surface?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

What is the primary function of the human respiratory system?

• To pump blood

• To digest food

• To exchange gases

• To produce hormones

Which piece of lab equipment is used to measure the volume of a liquid accurately?

• Beaker

• Test tube

• Graduated cylinder

• Petri dish

What should you always wear to protect your eyes during a lab experiment?

• Gloves

• Lab coat

• Safety goggles

• Face mask

Which technique is used to separate a solid from a liquid in a mixture?

• Filtration

• Evaporation

• Distillation

• Chromatography

What force is responsible for keeping us grounded on Earth?

• Magnetic force

• Gravitational force

• Frictional force

• Centripetal force

Which state of matter has a definite shape and volume?

• Solid

• Liquid

• Gas

• Plasma

Which of the following is a non-contact force?

• Friction

• Tension

• Gravity

• Normal force

Which of the following is a contact force?

• Magnetic force

• Electrostatic force

• Friction

• Gravitational force

Which planet is known as the "Red Planet"?

• Venus

• Mars

• Jupiter

• Saturn