Vocabulary
Molecules
Gravity
Energy
The Water Cycle
100
Rain, Snow, Sleet and hail that falls to the ground is call.........
Precipitation
100
What happens when molecules lose energy?
When liquid water loses thermal energy, it undergoes freezing : changing state from a liquid to a solid. We see many examples of this in everyday life. Puddles, ponds, lakes, and even parts of oceans freeze when the water becomes cold enough. At low temperatures, Earth's surface water freezes and forms solid ice.
100
What is gravity?
Gravity is the force of attraction between two objects. It is what makes things fall and what keeps us from floating off into space. Gravity is a fundamental force of nature.
100
What is energy?
The simplest definition of energy is "the ability to do work". Energy is how things change and move. It's everywhere around us and takes all sorts of forms. It takes energy to cook food, to drive to school, and to jump in the air.
100
Name two sources of water that evaporate into the atmosphere.
Sources of water that evaporate into the atmosphere include: water sources; plants; soil; animals
200
The change from a gas to a liquid is called......
Condensation
200
What happens when molecules gain energy?
During evaporation, molecules gain enough thermal energy to escape from the liquid surface into the air as water vapor. Water-vapor molecules spread out, breaking completely free of each other, and then disperse or spread out among the other gas molecules in the air.
200
Briefly, explain how gravity influences runoff.
The force of gravity pulls matter (ex. water) down from higher to lower elevations.
200
List three types of energy
Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear. In other research, you may find additional forms mentioned such as electrochemical, sound, electromagnetic and others.
200
How do clouds form?
When water vapor in the air loses heat or thermal energy to the atmosphere, the gas loses energy and changes its state to a liquid through a process called condensation. These tiny liquid water droplets are what form clouds.
300
The process by which sediment is laid down in new locations is called.........
Deposition
300
How can the water molecules you drink today be millions of years old?
Water molecules today have been continuously cycling on Earth for millions of years. The same processes of evaporation, precipitation, and condensation that are happening today have been happening for millions of years
300
The water cycle is driven by gravity and energy from what source?
The sun
300
How does gravity play a role in moving water in the water cycle?
Gravity pulls rain and snow down to Earth from the atmosphere through a process called precipitation. Gravity also pulls water from elevated areas such as mountains and hills down into lakes, oceans, and water reservoirs.
400
Evaporation of water from the leaves of a plant is called.........
Transpiration
400
How does Sun energy play a role in the water cycle?
The Sun’s energy evaporates water into the atmosphere from all types of sources, including bodies of water, plants, and animals. This water eventually falls back to Earth and moves along Earth’s surface until it is evaporated again by the Sun. The energy from the Sun is a driving force that gets the water cycling in and out of the atmosphere
500
The process by which a solid turns directly into a gas is called.......
Sublimation
500
Draw a sketch of the water cycle. Include at least three steps and label them.
