A puddle on the playground shrinks and disappears after a sunny afternoon. What happened to the water?

Drops of water form on the outside of a cold glass of lemonade on a warm day. What is this called?

Snow falls from a thick gray cloud and covers the ground. What part of the water cycle is this?

Heavy rain flows across a parking lot and into a storm drain. What is this moving water called?

A farmer pumps water from a deep well under her field. What is this underground water called?

A town stores its drinking water in a lake held back by a large dam. What is this lake called?

Look at a white puffy cloud on a summer day. What is that cloud made of?

Water evaporates from lakes and oceans all day long. What supplies the energy that keeps the water cycle going?

After a storm, water gathers in oceans, lakes, and rivers. What is this part of the water cycle called?

Photos from space show water covering most of Earth's surface. Where is most of Earth's water found?

Only a small part of Earth's water is fresh water. Where is most of that fresh water held?

Warm air rises from a lake and reaches much colder air high above. What happens to the water it carries?

Wet clothes on a line dry in the wind, but no water drips off them. What is the water now?

Dew appears on cool grass in the morning because water vapor changes into liquid drops.

The water cycle stops on days when no rain falls.

When ocean water evaporates, the salt is left behind in the ocean.

Early in the morning, fog hangs over a lake. As the sun climbs, the tiny fog drops warm up and disappear into the air. What is happening to the fog drops?

Hailstones clatter onto a roof during a summer storm. What part of the water cycle is this?

Water droplets cling to the inside of a car windshield on a cold morning. What is this called?

Rain runs down a steep street and pours into a gutter at the curb. What is this moving water called?

Rain soaks into a garden and slowly sinks down into the spaces between grains of rock and soil. What is this water now called?

Two wet towels are hung up at the same time, one in bright sun and one in a shady room. Which dries first, and why?

Steam rising from a pot of soup cools near the ceiling and forms drops on it. Which two steps of the water cycle happened in order?

A mountain stream is fed all summer by a melting snowfield above it. What supplied the water in that stream?

Sleet taps against a window during a cold storm. What part of the water cycle is this?

A shallow dish of water is left on a sunny windowsill for two days and is empty on the third. Where did the water go?

Thick fog fills a valley at dawn. What is that fog made of?

A spring bubbles out of a hillside and starts a small creek. Where did that water come from?

A town's reservoir drops several feet during a long dry spell. Which part of the water cycle has fallen off?

Warm moist air is pushed up the side of a mountain and cools as it rises. What happens to the water it carries?

Frost forms on a car roof overnight and melts into drops after sunrise. Which part of the water cycle put the water on the roof?

Snow on a field melts in spring, and the water sinks into the ground rather than flowing away. What is this water becoming?

An irrigation ditch is left running across a hard clay field, and most of the water flows off the far end. Why did so little of it soak in?

A class fills a covered jar halfway with water and leaves it in the sun. Drops form on the lid and the water level does not change. What does this model show?

Which part of the water cycle moves water from the ocean into the air?

Which part of the water cycle returns water from the air to the ground?

Water vapor in the air can be seen with the eyes, which is why steam and clouds look white.

Water that soaks into the ground can return to a river later, so the same water is used again and again.

A town takes its drinking water from a river fed by mountain snow. In a winter with very little snow, what is the town's supply likely to do the next summer?

Ocean water evaporates, falls on land as rain, and flows back to the sea in rivers. What does this path show about Earth's water?