Unit 3: Water ESL Test

What property of water allows certain insects to stand on water without sinking? Which property of water is responsible for this phenomenon?

• Capillary action

• High Specific heat

• Surface tension

• Adhesion

What is the chemical formula of a water molecule?

• H2O

• H2O2

• HO

• H3O

Mason and Aria are observing the sky and wondering which step of the Water Cycle forms clouds?

• Evaporation

• Transpiration

• Precipitation

• Condensation

What is the process called when water accumulates in rivers, ponds, and seas on the Earth's surface?

• Collection

• Condensation

• Precipitation

• Evaporation

Mrs. Smith noticed dew on the grass in the morning. By the afternoon, the dew was gone. What happened to the dew?

La señora Smith notó rocío en el césped por la mañana. Por la tarde, el rocío había desaparecido. ¿Qué le pasó al rocío?

• The dew condensed and disappeared as water vapor.

  El rocío se condensó y desapareció como vapor de agua.

• The dew was absorbed by the grass.

  El rocío fue absorbido por el césped.

• The dew evaporated into the air as water vapor.

  El rocío se evaporó en el aire como vapor de agua.

• The dew precipitated and formed clouds in the sky.

  El rocío se precipitó y formó nubes en el cielo.

What is the primary producer in most aquatic ecosystems?

• Zooplankton

• Coral

• Phytoplankton

• Algae

During a school field trip to a local river, Liam noticed that the water looked clear, but their teacher warned them that not all clear water is safe to drink. Sometimes water contains pathogens. What are pathogens?

• Organisms that cause illness or disease (enfermedades)

• Trash Pollution

• Bugs

• Dirty water

What is the name of the ecosystem where saltwater and freshwater mix together?

• Desert

• Lake

• Estuary

• Wetland

Which two main types of aquatic ecosystems exist?

• Wetlands and estuaries

• Freshwater and marine

• Oceans and seas

• Coral reefs and mangroves

What is the term for the concentration of salt in a body of water?

• Desalination

• Salinity

• Condensation