CONCEPT: Weather conditions change from day to day.
CONTENT OBJECTIVE: 0K2.00 To understand the relationship of clouds to rain and snow
INSTRUCTIONAL OBJECTIVES: The learner will:
2.01 observe the process of recycled water within a closed system.
2.02 discuss the water cycle.
OUTLINE OF CONTENT:
I. Types of precipitation
II. Evaporation forming clouds
TN COMPONENT OF SCIENCE: Process Of Science
To enable students to demonstrate the process of science by posing questions and investigating phenomena through language, methods and instruments of science
1.5 EXPLAINING - Phenomena and related information are made understandable through discussion that culminates in a higher level of learning
TN STANDARD(S): The learner will understand that:
1.5a Tables and graphs may be used to interpret the meaning and significance of data.
BENCHMARK: Graphs and tables provide visual results of observations
1.5b Nonmathematical language may be used to interpret the relationships presented in mathematical form.
BENCHMARK: Descriptions and comparisons may be presented in terms of number, shape, texture, size, weight, color, and motion.
Two instructional periods (30 minutes each)
Chalkboard, chalk, diagram of water cycle, video on rain or the water cycle, projector, screen; cut and paste ditto from book mentioned below; scissors, glue, crayons
Boys and girls, today we are going to learn what a water cycle is. Now let's think about a cycle, perhaps a bicycle. What do the wheels on a bicycle do? (They go over and over) Right, that's what happens in a water cycle. Water is used over and over. Why do we need to know about a water cycle? How many of you would like to know where rain and snow come from? Well, that's what we will learn about today.
Let's think about the last time we saw it rain. What did the rain form? (Puddles) In a day or two, were those puddles still there? (No) When they disappeared, where did the water go? (Into the air and up into the sky) When the rain goes into the air and up into the sky we say it evaporates. When the rain evaporates, or goes up into the air, who knows what it forms? (May have to give clues to get the class to say clouds.) These clouds are made up of all the drops of water that evaporated from the ground. What do you think would happen when a cloud gets heavy with water? (pause) What happens when you pick up something too heavy? (Drop it) So a cloud drops some of the water when it gets too heavy. When these clouds get heavy and the drops of water fall to the ground, what does it form on the ground for you to step in? (Puddles) In a few days what will happen to those puddles? (Evaporate)
Now boys and girls, think with me once again: What causes it to rain ? If you know raise your hand. (Call on a child to answer.) Right! Where does the water in the puddles go? (pause) Everyone answer. Right! If the same water is used over and over, put your thumbs up. You all have done a terrific job. I'm proud of you!
Today boys and girls, we are going to see a video on rain. You remember yesterday we learned all about what causes rain or snow. Think back with me. Raise your hand if you remember where water in a puddle goes. Now raise your hand if you remember why it rains. Everyone answer this next question. Is the same water used over and over that falls as rain? (pause) Yes it is! (show video)
Okay everybody think, put your thumbs up if the same water in rain and snow is used over and over.
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time this file has been accessed since 04/20/97.
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