Presentation on theme: "HOW DO FORMS OF WATER CHANGE? Lesson 2 Learning Goal: You will understand how water changes form and apply what you know about the water cycle."— Presentation transcript:
HOW DO FORMS OF WATER CHANGE? Lesson 2 Learning Goal: You will understand how water changes form and apply what you know about the water cycle.
Forms Water Can Have Cold weather can freeze water from a liquid to a solid. Warm temperatures in the spring and summer keep water in liquid form. When water freezes it takes up more space.
Evaporation Water can also become a gas called water vapor. Evaporation is the process of a liquid becoming a gas! The Suns energy evaporates surface water. That then becomes water vapor in the air. You cannot see water vapor but you can sometimes feel it on a hot day.
Condensation Water vapor in the air can turn back into a liquid!! The process of water vapor changing to a liquid is condensation! When the air cools, condensation turns invisible water vapor back into drops of water. Small droplets form clouds and fog. Large drops that form on plants are dew.
The Water Cycle There is only a certain amount of water on Earth. It must be used again and again. The movement of water from Earths surface into the air and back again is the water cycle! Water changes form or state as it moves through the water cycle.
Precipitation When water particles in clouds grow in size and weight, they fall faster! Water that falls to Earth is called Precipitation!! The form of precipitation depends on the temperature at Earths surface.