GSCE Combined Science Quiz

What is the molecule that carries genetic information?

• RNA

• DNA

• Protein

• Lipid

What is natural selection?

• The process where organisms better adapted to their environment tend to survive and reproduce.

• The artificial alteration of an organism’s DNA.

• The study of the Earth's physical structure.

• The process of water moving through a semipermeable membrane.

What is the pH range of acids?

• Less than 7

• Exactly 7

• Greater than 7

• Between 7 and 14

Which common kitchen item is an example of an alkali?

• Vinegar

• Lemon Juice

• Baking Soda

• Salt

What is the law of conservation of mass?

• • Mass can be created or destroyed in a chemical reaction.

• • Mass remains constant in a chemical reaction.

• • Mass changes in a physical reaction.

• • Mass decreases in a chemical reaction.

What must you do to balance a chemical equation?

• • Ensure the number of each type of atom on both sides of the equation is equal.

• • Make sure there are more products than reactants.

• • Add more reactants until they are used up.

• • Remove any coefficients.

What is a wave?

• • A particle that moves in space.

• • A disturbance that transfers energy.

• • A solid object.

• • A type of force.

What type of wave is a sound wave?

• • Electromagnetic wave

• • Longitudinal wave

• • Transverse wave

• • Surface wave

What part of the electromagnetic spectrum can humans see?

• • Radio waves

• • Microwaves

• • Visible light

• • Gamma rays

Name one type of electromagnetic radiation.

• • Sound waves

• • Radio waves

• • Ocean waves

• • Seismic waves