Water Cycle

Fill in the blank: The air that surrounds a planet is called the _______.

• atmosphere

• biosphere

• hydrosphere

• lithosphere

To heat a liquid until it bubbles and turns quickly into a gas is to _______.

• boil

• freeze

• melt

• condense

Fill in the blank: The process of a gas changing to a liquid is called _______.

• condensation

• evaporation

• sublimation

• deposition

Fill in the blank: A set of events that repeats in the same order over and over is called a _______.

• cycle

• pattern

• sequence

• routine

Fill in the blank: The process of a liquid changing to a gas is called _______.

• evaporation

• condensation

• sublimation

• freezing

Fill in the blank: A test used to discover new information about a question is called an _______.

• experiment

• survey

• observation

• interview

Fill in the blank: All the water (solid, liquid, gas) on and around planet Earth is called the _______.

• hydrosphere

• atmosphere

• lithosphere

• biosphere

Fill in the blank: A pretend version of something that scientists use when the real thing is too big, small, or complicated to work with is called a _______.

• model

• simulation

• replica

• graph

Fill in the blank: To pay close attention to something is to _______.

• observe

• ignore

• overlook

• neglect

Fill in the blank: Water falling from clouds in the sky, including rain, snow, and hail, is called _______.

• precipitation

• evaporation

• condensation

• transpiration