Download - Water Cycle
Water Cycle
By: Justine Dickard
2nd grade science
• Purpose: understand where water is found and the water cycle
• Objectives:• Learn that water is present in the air and what
different forms water has• Learn water cycle
• Directions: • Discuss water cycle and look at slides. After lesson is
complete, then answer questions about water cycle
Water is in air as…
• Clouds• Steam• fog, • rain
• Ice• Snow• Sleet• hail
Water vapor
• Water changes from liquid to vapor (gas) when energy heat is added to it. It becomes evaporation.
• When water vapor cools it becomes liquid again. This is called condensation.
Clouds
• Water droplets in air form clouds• When droplets or clouds get heavy enough
they fall to earth and create precipitation (rain, snow, sleet, and hail)
Where does precipitation go?
• Some precipitation soaks into the ground• Rest of precipitation collects in ponds and
lakes or streams and rivers which flow into oceans
Solid water forms
• Water droplets change to solid (snow, sleet, or hail) when the weather is cold enough.
Water cycle
• You should now be able to understand the three main parts of the water cycle: Precipitation, evaporation, and condensation. If you have any questions, now is the time to ask.
Question #1
• What makes rain fall?
Water droplets get heavy in clouds and fall
Heat energy is added to water vapor
The weather gets cold enough to make it rain
Question #2
• Where does some precipitation go after it falls?Sky
Ground
Puddles
Question #3
Label evaporation, condensation, and precipitation on the cycle chart.
You are correct!
Rain forms when water droplets form cloudsand gets too heavy.
Try again!
• Review what happens when heat energy is added to water vapor
Try again!
When weather gets cold enough, it can formsnow, sleet, or hail.
Try again!
Please review information on precipitation
Correct!
Precipitation can soak into the ground or collectin ponds, lakes, streams, rivers, and oceans.
Try again!
Please review information on precipitation
Condensation
Precipitation
Evaporation
Activities
• Water cycle chart Water cycle activity. (n.d.). Retrieved from
http://www.kidzone.ws/water/cactivity1.htm
• Relf, P. (1996). The magic school bus wet all over : A book about the water cycle. Scholastic Paperbacks.