Watu Core Six Measurement

1. What term names molten rock expelled by a volcano?

lava

magma

tephra

mantle

2. What force causes unsupported objects to fall toward Earth?

gravity

electromagnetism

magnetism

van der Waals force

3. Which scientific law states that matter is neither created nor destroyed in a chemical reaction?

conservation of mass

conservation of energy

conservation of momentum

law of definite proportions

4. What is the most abundant gas in Earths atmosphere by volume?

nitrogen

oxygen

argon

carbon dioxide

5. In the water cycle, which process changes liquid water into water vapor?

evaporation

condensation

sublimation

precipitation

6. Which rule correctly describes the force between two magnetic poles?

Opposite poles attract each other

Like poles attract each other

Opposite poles repel each other

Geographic north and south poles attract each other