Energy Flow

What is it called when liquid water changes into water vapor?

• Precipitation
• Evaporation
• Runoff
• Condensation

What is it called when water falls from clouds to the ground?

• Precipitation
• Evaporation
• Runoff
• Condensation

What is it called when water vapor changes into liquid water?

• Precipitation
• Evaporation
• Runoff
• Condensation

Which of these is an example of precipitation?

• Snow
• Clouds
• Vapor
• Air

What is the water cycle?

• when water melts
• the three forms of water
• when clouds form
• the movement of water from the atmosphere to Earth and back

What provides the energy to make the water cycle happen?

• moon
• rivers
• sun

Durning which stage do clouds form?

• evaporation
• condensation
• precipitation

What "fixes" nitrogen so plants can use it?

• respiration
• plants get nitrogen from the air
• photosynthesis
• bacteria

Where do plants get nitrogen from?

• the air
• plants
• animals
• the soil

Where do animals get nitrogen from?

• the food they eat
• plants
• animals
• the soil