Science Grade 7 Water Cycle Diagram

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Questions and Answers

What is evaporation?

  • Water that is in the ground
  • Solid or liquid water that falls to the ground
  • Liquid to gas & gain thermal energy (correct)
  • Gas to liquid & loss thermal energy

What occurs during condensation?

  • The change of state from a liquid to solid
  • Solid or liquid water that falls to the ground
  • Gas to liquid & loss thermal energy (correct)
  • Water from precipitation that flows on Earth's surface

What is precipitation?

Solid or liquid water that falls to the ground

What is runoff?

<p>Water from precipitation and snow melt that flows over Earth's surface</p> Signup and view all the answers

How long can a person survive without water?

<p>A few days</p> Signup and view all the answers

How long can a person live without food?

<p>Over a month</p> Signup and view all the answers

How does water help an organism's body?

<p>It transports substances to all tissues and organs, this ONLY happens in cells.</p> Signup and view all the answers

What two things are mostly made of water?

<p>Plants &amp; Animals</p> Signup and view all the answers

How much of the human body is water?

<p>Over half</p> Signup and view all the answers

What is groundwater?

<p>Water that is in the ground, water that seeps through the soil and cracks in rocks.</p> Signup and view all the answers

What is melting?

<p>The change of state from a solid to a liquid; occurs when a solid gains thermal energy.</p> Signup and view all the answers

What is sublimation?

<p>The change of state from a solid to a gas without first becoming a liquid.</p> Signup and view all the answers

What is freezing?

<p>The change of state from a liquid to a solid; occurs when a solid loses thermal energy.</p> Signup and view all the answers

What is deposition?

<p>The change of state from a gas to a solid; occurs when a gas loses thermal energy.</p> Signup and view all the answers

What is an aquifer?

<p>Loose rock or soil that is saturated with groundwater.</p> Signup and view all the answers

What does the water table refer to?

<p>The depth at which loose rock or soil below Earth's surface are saturated with water.</p> Signup and view all the answers

What does a water particle look like?

<p>2 Hydrogen particles and one Oxygen particle, big Oxygen in the middle and a hydrogen on either side, like Mickey Mouse ears.</p> Signup and view all the answers

On a piece of paper, draw a ______ and label it!

<p>Water particle</p> Signup and view all the answers

What is the water cycle?

<p>A continuous pattern in nature in which water moves around as it changes state above, on, and below the surface of Earth.</p> Signup and view all the answers

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Study Notes

Water Cycle Key Concepts

  • Evaporation: Transition from liquid to gas where water gains thermal energy.
  • Condensation: Conversion of gas to liquid where water loses thermal energy.
  • Precipitation: Water, in solid or liquid form, falls to Earth (e.g., rain, snow).
  • Runoff: Water that flows over the Earth's surface following precipitation and snowmelt.
  • Collection: Accumulation of water in bodies like rivers, lakes, and oceans.

Water Survival Facts

  • A person can survive without water for only a few days.
  • Humans can live over a month without food.

Importance of Water in Organisms

  • Water is essential for transporting substances to tissues and organs, occurring solely within cells.
  • Both plants and animals primarily consist of water.

Water Composition in Humans

  • Over half of the human body is composed of water.

Groundwater and Aquifers

  • Groundwater: Water that infiltrates the soil, filling cracks in rocks and serving as a source for springs and wells.
  • Aquifer: Saturated loose rock or soil that holds groundwater.

Changes of State in Water

  • Melting: Changes from solid to liquid when gaining thermal energy.
  • Sublimation: Transitions from solid to gas without becoming liquid, occurring with added thermal energy.
  • Freezing: Changes from liquid to solid when losing thermal energy.
  • Deposition: Conversion from gas to solid when a gas loses thermal energy.

Water Cycle Mechanics

  • Water Table: Depth where rock and soil are saturated with water; marks the upper level of aquifers.
  • The water cycle is a continuous natural process where water circulates through different states above, on, and below Earth's surface.

Water Molecule Structure

  • A water particle consists of two hydrogen atoms and one oxygen atom, resembling Mickey Mouse ears with the oxygen atom as the larger central portion.

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