Water Basics
This molecule is made of two different types of atoms and is essential for all life on Earth.
What is water (H₂O)?
This change in state happens when ice turns into liquid water.
What is melting?
This term describes the amount of salt dissolved in water.
What is salinity?
Most of Earth’s water is found in this form.
What is saltwater?
This process uses living organisms to clean polluted soil or water.
What is bioremediation?
Name the two elements that combine to form a water molecule.
What are hydrogen and oxygen?
This change in state occurs when water vapour turns into liquid droplets.
What is condensation?
This large body of slowly moving ice forms over hundreds of years from compacted snow.
What is a glacier?
The average salinity of ocean water is about this percentage.
What is 3.5%?
Bioremediation is often used to clean up this type of environmental problem.
What is pollution or contamination?
Water in lakes and rivers exists in this state of matter.
What is liquid?
Name the process where liquid water becomes a gas.
What is evaporation?
This is an area of land where all water drains into the same river, lake, or body of water.
What is a watershed?
Water with very high salt content is called this.
What is brine water?
These organizations help manage water resources and protect watersheds in Ontario.
What are Conservation Authorities?
Identify one place in nature where water exists as a gas.
What is water vapour in the atmosphere (clouds/air)?
This change in state occurs when a solid turns directly into a gas.
What is sublimation?
This underground layer stores water that can be used by wells.
What is an aquifer?
Large bodies of water resist rapid temperature change because they act as this.
What is a heat sink?
Name one responsibility of Ontario Conservation Authorities.
What is flood control, water protection, land management, or conservation?
Explain why water is often called essential for life on Earth.
What is that it supports life processes, regulates temperature, and is needed by all living things?
This change in state happens when a gas turns directly into a solid, such as frost forming.
What is deposition?
This invisible boundary separates saturated ground from unsaturated ground.
What is the water table?
Explain how oceans help regulate Earth’s climate.
What is that they absorb and store large amounts of heat energy?
Human activity can change this underground water level by pumping or land use.
What is the water table?