Bill Nye Water Cycle

In what three states can water exist?

• Solid, liquid, and plasma

• Solid, liquid, and gas

• Liquid, gas, and vapor

• Ice, water, and steam

What is the scientific term for the continuous movement of water around the Earth?

• Geological Cycle

• Biological Cycle

• Hydrological Cycle

• Atmospheric Cycle

What process describes water changing from a liquid to an invisible vapor?

• Condensation

• Precipitation

• Evaporation

• Collection

What happens to water molecules when water is heated?

• They slow down.

• They move faster.

• They become visible.

• They combine to form larger molecules.

What causes water to evaporate even when it is not boiling?

• All water molecules move at the same speed, allowing some to escape.

• Some water molecules gain enough energy to escape the liquid state.

• The air pressure above the water is extremely low, pulling molecules away.

• The water is secretly boiling at a microscopic level.

What process describes water vapor losing energy and turning into liquid water droplets on a cold surface?

• Evaporation

• Sublimation

• Condensation

• Precipitation

What is necessary for water vapor to condense into liquid water droplets and form clouds?

• Extremely high temperatures to energize the vapor.

• A completely vacuum-sealed environment.

• Tiny particles, such as dust, for the vapor to stick to.

• Constant stirring of the air to mix the vapor.

What is the primary energy source that drives Earth's water cycle?

• Geothermal heat from Earth's core.

• The moon's gravitational pull.

• Energy from the sun.

• Chemical reactions in the atmosphere.

Which four main stages describe the continuous movement of water on Earth?

• Evaporation, Condensation, Precipitation, Collection

• Melting, Freezing, Sublimation, Deposition

• Runoff, Infiltration, Transpiration, Absorption

• Boiling, Freezing, Evaporation, Condensation

What process causes water droplets in clouds to grow larger and eventually fall as rain?

• They absorb heat from the sun.

• They combine with dust particles.

• They bump into each other and stick together.

• They are pushed together by strong winds.