Quiz

Which of these is a form of matter that has a fixed shape and volume?

• A. Liquid
• B. Gas
• C. Solid
• D. Plasma

What is the process called when a liquid changes into a gas?

• A. Freezing
• B. Melting
• C. Evaporation
• D. Condensation

Which of these is NOT a simple machine?

• A. Lever
• B. Wheel and axle
• C. Pulley
• D. Battery

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

• A. Gravity
• B. Magnetism
• C. Friction
• D. Buoyancy

Which of these is a renewable resource?

• A. Coal
• B. Natural gas
• C. Wind
• D. Petroleum

What is the source of energy in the water cycle?

• A. Wind
• B. Sun
• C. Moon
• D. Earth

Which of these is an example of a non-renewable resource?

• A. Solar power
• B. Wind energy
• C. Fossil fuels
• D. Biomass

What type of energy does a moving car have?

• A. Solar energy
• B. Kinetic energy
• C. Potential energy
• D. Electrical energy

What is the process by which plants release water vapor into the air?

• A. Respiration
• B. Photosynthesis
• C. Transpiration
• D. Germination

Which of these helps to reduce friction?

• A. Lubricants
• B. Magnets
• C. Pulleys
• D. Gears