Water Cycle Intro and Lesson

Earth’s Fresh

Water

Vocabulary

water cycle
evaporation
condensation
precipitation
transpiration

runoff

water vapor
groundwater

humidity

water cycle - the cycle through
which water moves to renew itself and
return to the earth as rain

​

Multiple Choice

Which provides energy for most life cycles on Earth?

• producers

• solar energy

  (sun)

• consumers

• decomposers

evaporation- when water turns into
a gas called water vapor. Wind and heat
from the sun speed up the evaporation

process.

1-Gains heat energy

2-Water drying on a car
3-Mud Puddle drying

up

4-Faster on Hot Days

5-Steam

6-Water to Gas

Multiple Choice

Which will evaporate faster?

• a puddle on a rainy day

• a puddle on a sunny day

• a puddle on a cloudy day

• a puddle on a overcast day

condensation - when water, in its
gas form, called water vapor, turns back

into its liquid form

1-fog on mirror
2-dew on grass
3-water outside
cup wets hands
4- cooling of gas

to liquid

5-loses heat

energy

Poll

In order for clouds to form. What must happen first?

• heat energy from the sun changes water in clouds from gas to liquid

• the sun heats the clouds which causes them to hold more rain

• the sun warms ocean water which then causes clouds to form when cooled

Multiple Choice

How are evaporation and condensation similar?

• both cause decreased air temperatures

• both cause an increase in temperatures

• both are caused by a warming of the atmosphere

• both are caused by changes in heat energy

precipitation -
when water in the form
of ice, rain, sleet, hail,

or snow, falls to Earth

1-rain
2-sleet
3-hail
4-snow

5- water that falls

from cloud when too

heavy

Poll

How does the sun impact the process of precipitation?

• Sun's energy causes water to collect into oceans, then it evaporates into the atmosphere to form clouds that then heat to release water

• Sun's energy causes water to evaporate into the atmosphere then form clouds that then release precipitation

Multiple Choice

After water condenses to form clouds, it falls back to the Earth as

• evaporation

• condensation

• precipitation

transpiration – the water that plants
give off as part of their respiratory
process (they “breathe” in carbon dioxide
and “breathe” out oxygen – in this
process, they also make water)

Poll

What will increase transpiration?

• increased runoff and increased cloud cover

• increased runoff and decreased cloud cover

• decreased runoff and increased cloud cover

• decreased runoff and decreased cloud cover

runoff – when

precipitation hits the

ground, it is either

absorbed, or it flows over
the surface of the earth.

Multiple Choice

What part of the water cycle requires plants to happen?

• evaporation

• condensation

• precipitation

• transpiration

water vapor - water in its gas form is
water vapor. If you can see it, it’s not
really water vapor!

Fill in the Blank

Put T for True and F for False.

Vapor is fancy way to say gaseous water.

Multiple Choice

Snow, Rain, Hail, and Fog are all forms of

• gas

• water

• wind

• clouds

groundwater – water that is in
the ground

humidity – the level of moisture in the
air; the amount of water vapor in the air

Multiple Choice

Snowfall is an example of

• condensation

• precipitation

• evaporation

• transpiration