Description
What our Water Cycle STEM lesson plan includes
Lesson Objectives and Overview: Water Cycle STEM teaches students about the water cycle. By the end of the lesson, they will be able to name the parts of the water cycle and explain how the cycle operates. This lesson is for students in 5th grade and 6th grade.
Classroom Procedure
Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the yellow box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand.
Options for Lesson
There are suggestions in the “Options for Lesson” section of the classroom procedure page for additional activities or ideas. Invite a guest speaker such as a meteorologist or environmental scientist. Take students on a nature walk to observe real-world examples of the water cycle. Create a classroom water cycle mural or 3D model. Start a simple classroom water conservation project to connect the cycle to real-life responsibility.
Teacher Notes
The teacher notes page provides an extra paragraph of information to help guide the lesson. You can use the blank lines to write down any other ideas or thoughts you have about the topic as you prepare.
WATER CYCLE STEM LESSON PLAN CONTENT PAGES
The Water Cycle STEM lesson includes two content pages. Did you know that the water you drink today might be the same water that dinosaurs drank millions of years ago? That’s right! Earth has been recycling the same water for billions of years through a process called the water cycle. This cycle moves water around our planet, from the oceans, lakes, rivers, and streams to the sky and into your glass of water.
The water cycle is the natural way water moves through our Earth. It has no beginning or end. Water changes into different forms—liquid (like rain), gas (like steam), and solid (like snow). This cycle is powered by the sun and works in a repeating pattern. Scientists call it a cycle because it keeps going around and around without stopping.
Evaporation and Transpiration
The first step is called evaporation. The sun heats up the water when it shines on rivers, lakes, or oceans. The warm water turns into a gas called water vapor and rises into the sky. Even puddles disappear this way! A simple way to think of evaporation is to think about sweat. When you are hot, you begin to sweat. But as you cool, sweat evaporates from your skin.
But water doesn’t only evaporate from lakes and oceans. It also comes from plants! This process is called transpiration. Plants take in water through their roots and release some of it into the air through their leaves. It’s like plants breathing out tiny water droplets. Together, evaporation and transpiration help fill the sky with water vapor.
Condensation and Precipitation
As water vapor rises higher, it gets colder. When the vapor cools down, it changes back into tiny water droplets. This is called condensation. These tiny drops group together to form clouds. The more water in the air, the bigger and darker the clouds can get. That’s why storm clouds look so full and gray!
Eventually, the clouds get too full of water. The drops become heavy and fall to the ground as precipitation. This happens in the form of rain, snow, sleet, or hail, depending on how cold it is. Precipitation brings water back to the earth’s surface, where it can begin the cycle again.
After water falls, it needs to go somewhere. Some of it runs off into rivers, lakes, and oceans. This is called collection. Some water soaks into the ground and becomes groundwater, which we use for wells and drinking. Water can stay in lakes and oceans for a long time before it evaporates again.
The Continuous Cycle
Water is constantly moving—even when we can’t see it. The water evaporating in one part of the world can fall as rain in another! A drop of water that starts in the Atlantic Ocean might end up in a cloud over Africa and fall as snow in Antarctica!
The water cycle affects everything around you. It helps plants grow, fills your bathtub, and even brings snow for sledding in winter! Every living thing on Earth needs water to survive, and the water cycle ensures we don’t run out. Without the water cycle, we wouldn’t have clean water to drink, grow food with, or take showers in. The cycle helps clean the water, too! When water evaporates, it leaves any dirt and salt behind, becoming fresh again. Nature has a clever way of recycling water to keep life going.
Now you know that the water cycle is a never-ending story. From dinosaur days to today, water has been on an exciting trip—changing forms, traveling through the sky and land, and keeping all life alive. So, next time you sip water, think about how it might have once been part of a cloud, an ocean, or even a dino’s drink!
WATER CYCLE STEM LESSON PLAN WORKSHEETS
The Water Cycle STEM lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. Each one will reinforce students’ comprehension of lesson material in different ways and help them demonstrate when they learned. Use the guidelines on the classroom procedure page to determine when to distribute each worksheet to the class.
MODEL ACTIVITY WORKSHEET
In this activity, students will create a mini water cycle inside a plastic bag to see evaporation, condensation, and precipitation in action! They will follow the steps to create the mini water cycle. Then they will answer the observation questions at the bottom of the page.
CARD GAME PRACTICE WORKSHEET
For the practice worksheet, students will follow the steps to create the cards and play the water cycle card game. If they want to, students can find pictures or illustrations matching the vocabulary word or definition of the cards. Or they can draw them.
WATER CYCLE DETECTIVE HOMEWORK ASSIGNMENT
Students will become water cycle detectives at home. They must look closely at the water around you—whether inside their house or outside in nature. Their job is to find an example of water doing something interesting and figure out which part of the water cycle they are observing in that moment.
Worksheet Answer Keys
There is an answer key for the homework worksheet, but it is a sample response given the nature of the assignment. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits this page. Otherwise, you can simply print out the applicable pages and keep this as reference for yourself when grading assignments.






