Skip to main content
 

Teaching Through Trade Books

The Sun's Energy

Energy is one of the crosscutting concepts that bridges different disciplines in the Next Generation Science Standards (NGSS Lead States 2013). In the activities presented this month, younger students examine how energy is produced by the Sun and reaches the Earth as sunlight, which warms the Earth’s surface. Students also explore how materials of different colors absorb or reflect sunlight at different rates. Through simple investigations, students determine that different materials can be used to protect themselves from the Sun’s energy. Older students examine how the energy from the Sun is the basis for all of the life on Earth and how it progresses through food chains and food webs. They develop food chains and food webs to show how all begins with plants, which get their energy from the Sun.

This Month’s Trade Books

Sun and Shade
figure1

By Mary Lindeen
ISBN: 978-1-68404-091-9
Norwood House Press
32 pages
Grades K–2

Synopsis

Through very basic language, this book engages emerging readers in ideas related to the Sun and shade. Using photos, the book also shows how the Sun helps certain processes, as well as things that can create shade.

Pass the Energy, Please!
figure2

By Barbara Shaw McKinney
Illustrated by Chad Wallace
ISBN: 978-0-06-445177-2
HarperCollins
32 pages
Grades 1–4

Synopsis

This book focuses on food chains and how energy is passed from one animal or plant to the next along the way. The text uses rhyme and incorporates herbivores, carnivores, insects, and plants into the food chain, increasing the steps of the food chain throughout the book.

Grades K–2: Sunny Days

Purpose

To discuss the ideas of Sun and shade, identify whether black or white objects absorb or reflect the Sun’s energy, and use that information to build a structure that reduces the warming effect of sunlight on the area.

MATERIALS

Engage

Begin by showing students an umbrella and ask them when they would use an umbrella. Although the common answer is “when it is raining,” continue to prompt students for other times and, if necessary, show them either a picture of a beach umbrella or the cover of the book to help them generate additional answers. Once students understand that an umbrella is often used at the beach or at home on a patio, ask them to consider why they would use an umbrella at the beach.

Read Sun and Shade to students. After reading it through once, ask students to discuss the following questions. Refer back to the story if necessary.

  • How does the Sun help plants, animals, and people stay alive?
  • Can you describe a time where you were outside in the Sun and it felt too hot or it was too bright out?
  • Looking at the picture of the girl on page 14, why do you think she is sitting under an umbrella? If you were sitting in the shade, what are you doing to the sunlight?
  • What are other objects that help create shade that can protect plants, animals, and people?
  • Compare the temperature you think you would feel in the Sun and the shade. Which do you think would be warmer? Cooler?

Explore

In this activity, students examine how sunlight warms the Earth’s surface, explore how colors absorb or reflect light, and determine how that impacts the temperature of an object or place. Begin this exploration by providing students with a sheet of black construction paper and a sheet of white construction paper. Ask them to consider the color of clothing a person would wear in the summer in warm locations and in the winter when it is cooler. Although there are other variables to consider when dressing for different temperatures, such as fiber, texture, and weight associated with clothing types, the goal here is to help students focus on the color of the clothing. Ask students, “If you only had T-shirts that were black or white, which would they prefer to wear to a warm location?” Allow students time to consider this question and then discuss their reasoning. Most students, without realizing it, will associate the color white with staying cooler or being cooler (think snow, ice, etc.).

figure4

Next, ask students to place a small, clear plastic cup or sealable bag with an ice cube in it on each sheet of paper, and place the sheets of paper in a sunny area such as on a windowsill or, if possible, outside on the playground. Then, repeat the activity, but this time, place the ice cube under each sheet of paper. Throughout both of these trials, students should first make a prediction and then record their observations on the What Happens to the Ice Cube student data sheet (see NSTA Connection).

Explain

Bring the class back together to discuss the findings. Questions to prompt the discussion include:

  • In the first investigation, where the ice cubes were on top of the sheets of paper, what did you observe? How many of you noticed that the ice cube on the black paper melted first? Did any of you notice the ice cube on the white paper melting first? (As some students may have made observations that the ice cube on the white paper melted first, it is important to discuss potential reasons or other variables. Students can speculate what may have caused that change, such as the ice cubes being different sizes or the sheets of paper receiving different amounts of sunlight.)
  • In the second investigation, where the ice cubes were under the sheets of paper, which ice cube melted first? Was there a difference in how quickly each ice cube melted? (The ice cube under the black sheet of paper will melt quicker than the one under the white paper, but this will take longer than the ones in direct sunlight from the first investigation.)
  • How is the first investigation similar to when you are at the beach and in the sunlight? Although the ice cube melts and you won’t, what might happen if you stay in the Sun too long? How is the second investigation similar to using an umbrella for shade? What happens to the energy or heat we get from the Sun when we use an umbrella for shade?
  • When sunlight hits the umbrella or a light-colored surface, it bounces back or is reflected off of the surface. Can you draw what you think this looks like on the student data sheet? Dark colors help absorb or soak up sunlight and make an object feel warmer. Can you draw what you think this looks like on the student data sheet?

Using the photos of various types of outdoor shelters, ask students to describe how each shelter helps reflect sunlight and keep the inside of the shelter cooler.

figure5

Elaborate

Students are now asked to demonstrate their understanding that dark colors absorb sunlight and light colors reflect sunlight, as well as the fact that certain types of shelter will help keep an area cooler. Provide groups of students with building materials including different-colored construction paper, craft sticks, or skewers and tape, and the My Island Visit sheet (see NSTA Connection). (Safety note: Remind students to handle skewers carefully, as they have sharp ends. When using skewers, students should wear safety glasses.) Pose the following challenge to them:

You want to go to an island for a vacation, and the island gets a lot of Sun during the day. You do not want to get sunburned and want to stay cool, so you need to build a shelter (you do not have any sunscreen). The first task is to explain to your parents what color of clothing you should wear for your island visit. The second task is to build a shelter once you get there using the materials provided, which will help reduce the warming effect of sunlight on the area and help you stay cooler.

Allow students time to consider their first task and record their answers on the My Island Visit student sheet. Ask them to sketch or draw the color shirt they would wear and write why they chose that color. For the second activity, ask students to first sketch their shelter design and label the parts before building it. Then, ask them to build their shelter using the materials provided. Have each group describe its shelter to the teacher and explain why it will keep students cooler than being in direct sunlight.

Once all shelters are constructed, test them outside on the playground by placing an ice cube in a plastic cup or sealable bag and placing it under the shelter, and place another ice cube in the same type of container next to the shelter. It is important for the teacher to make sure that both ice cubes are on the same type of surface (i.e., both on blacktop or both on grass) and that neither is already in a shady area. Ask students to make observations about what happens to the ice cubes and record them on the sheet.

Evaluate

Through their answers, students show their initial understanding of how the Sun produces energy and how we can protect ourselves from the Sun. Students then draw conclusions about how the color of an object (either black or white) absorbs or reflects the Sun’s energy. Finally, students are asked to apply their understanding of Sun versus shade and the color of objects and their impact on temperature in direct sunlight by determining what they should wear to an island and what type of structure they would build as a shelter.

figure6

Grades 3–5: Energy Flows

Purpose

To explain how energy from the Sun is transferred from one plant or animal to the next in a food chain or web.

MATERIALS

Engage

Show students the Fabulous Food Chain video (see Internet Resources) and ask them to focus on the idea that there are food chains and food webs, as well as how energy from the Sun is at the beginning of the chain. Stop at the following points in the video for discussion:

  • 0:24: Where does any living thing get its energy from?
  • 0:53: Where are humans in the food chain?
  • 1:36: What is a food chain? An ecosystem? What does a food chain do within an ecosystem?
  • 2:40: What is the example food chain given in the video? Which animal was at the top of this food chain?

Explore

In the video, the definition of a food chain is a model that shows how energy flows between living things in an ecosystem. Ask students to break into groups and read the book (or read the book aloud to the class). Explain that with each page spread, a food chain or link in a food chain is discussed. Ask students to use their Pass the Energy, Please! student data sheet (see NSTA Connection) to explore the different links in a food chain and determine how many links are shown for each page spread. For example, pages 4 and 5 show that there is a single link (at the top of the page), which is a green plant. Students would then explain by illustrating the food chain and/or describing it in words that the plant obtains its energy from the Sun and makes its own food.

It is important that students read the words and not simply look at the pictures. The key to the food chains are:

  • pp. 6–7: One link; seaweed is a plant and gets its energy from the Sun.
  • pp. 8–9: Two links; large herbivores (e.g., gorillas, buffalo, pandas) get their energy by eating large amounts of plants, which get their energy from the Sun.
  • pp. 10–11: Three links; cheetahs eat gazelles, which eat grass, which gets its energy from the Sun.
  • pp. 12–15: Four links; owls eat snakes, which eat mice, which eat milkweed seeds.
  • pp. 16–19: Five links; polar bears eat seals, which eat fish (anchovies), which eat zooplankton, which eat phytoplankton. It may be necessary to discuss what zooplankton and phytoplankton are ahead of time.
  • pp. 20–23: Six links; a red fox eats a weasel, which eats a bird (warbler), which eats spiders, which ate a caterpillar, which ate goldenrod plants.

When students arrive at pages 24–26, ask them to consider why the links in the upper corner of the page appear broken and what is happening on that page. In this case there isn’t a chain, but rather a variety of decomposers helping break down a dead animal and obtain the energy they need from it. The decomposers are a vulture, beetle, maggot, moth, ant, bacteria, fungus, and earthworm.

Explain

Bring students back together and ask them to explain what links they found in each chain and determine whether there is agreement as to how energy moves from one living thing to the next. Ask them to create links out of paper strips to represent animals and how the links of the food chain are connected. Use the chains as a model to show individual food chains.

Next, ask students to use a hawk as the top consumer (top of the food chain) and to create as many potential food chains as possible showing the hawk at the top. Ask students: “Are there places that these individual food chains could be connected together? How does this food web demonstrate what an ecosystem is?”

Elaborate

Engage students in the online game Build a Food Chain or Fun With Food Webs (see Internet Resources), so they can demonstrate their understanding. After they have created their food webs or food chains, ask them to turn their student sheet over and write a short narrative about what a food web and food chain are.

Evaluate

Students are first asked to connect their understanding about food chains and ecosystems before they construct food chains from information provided in the story. Finally, through the online game and written narrative, they demonstrate their ability to construct a food chain/food web on their own and explain the steps within it.

Connecting to Three-Dimensional Standards (Sun and Shade)

Science and Engineering Practice

Constructing Explanations and Designing Solutions

Classroom Connection:  
Students describe which type of clothing they would wear at the beach and a type of shelter they would build to protect themselves from the Sun.


Disciplinary Core Idea

PS3.B: Conservation of Energy and Energy Transfer
Sunlight warms Earth’s surface

Classroom Connection:
Students investigate which color absorbs more sunlight and heat, and melt an ice cube.


Crosscutting Concept

Cause and Effect

Classroom Connection:
Students investigate how different colors absorb or reflect the Sun’s energy.


Performance Expectation

  • The materials, lessons, and activities outlined in the article are just one step toward reaching the performance expectation listed below.

K-PS3-2. Use tools and materials provided to design and build a structure that will reduce the warming effect of sunlight on an area.

Connecting to Three-Dimensional Standards (Pass the Energy, Please!)

Science and Engineering Practice

Developing and Using Models

Classroom Connection:  
Students develop models that demonstrate how various organisms are part of a food chain.


Disciplinary Core Idea

PS3.D: Energy in Chemical Processes and Everyday Life
The energy released from food was once energy from the Sun that was captured by plants in the chemical process that forms plant matter.

Classroom Connection:
Students describe how plants get their energy from the Sun and provide energy to other organisms that consume them.


Crosscutting Concept

Energy and Matter

Classroom Connection:
Students explain how energy from the Sun is transferred to different organisms in a food chain.


Performance Expectation

  • The materials, lessons, and activities outlined in the article are just one step toward reaching the performance expectation listed below.

5-PS3-1. Use models to describe that the energy in animals’ food (used for body repair, growth, motion, and to maintain body warmth) was once energy from the Sun.

Connecting to the Common Core State Standards

This section provides the Common Core for English Language Arts and/or Mathematics standards addressed in this column to allow for cross-curricular planning and integration. The Standards state that students should be able to do the following at grade level.


ENGLISH/LANGUAGE ARTS

Reading Standards for Informational Texts K–5 – Key Ideas and Details

  • Grade 4: “Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text.”

LANGUAGE STANDARDS

Writing Standards K–5 – Research to Build and Present Knowledge

  • Grade K: “With guidance and support from adults, recall information from experiences or gather information from provided sources to answer a question.”

Writing Standards K–5 – Text Types and Purposes

  • Grade K: “Use a combination of drawing, dictating, and writing to compose informative/explanatory texts in which they name what they are writing about and supply some information about the topic.”
  • Grade 2: “Write informative/explanatory texts in which they introduce a topic, use facts and definitions to develop points, and provide a concluding statement or section."
  • Grade 4: “Write informative/explanatory texts to examine a topic and convey ideas and information clearly.”

Speaking and Listening Standards K–5 – Comprehension and Collaboration

  • Grade 1: “Participate in collaborative conversations with diverse partners about grade 1 topics and texts with peers and adults in small and larger groups.”

Speaking and Listening Standards K–5 – Presentation of Knowledge and Ideas

  • Grade K: “Add drawings or other visual displays to descriptions as desired to provide additional details.”
  • Grade 1: “Add drawings or other visual displays to descriptions when appropriate to clarify ideas, thoughts, and feelings.”

Vocabulary Acquisition and Use is one of the standards for language. This particular standard is across grade levels: “Determine or clarify the meaning of unknown and multiple-meaning words and phrases based on grade [appropriate] reading and content.”Furthermore, the Common Core for ELA provide a standard related to the Range of Text Types for K–5 where it indicates that students in K–5 should apply the Reading standards to a wide range of texts to include informational science books.

References

National Governors Association Center for Best Practices and Council of Chief State School Officers (NGAC and CCSSO). 2010. Common core state standards. Washington, DC: NGAC and CCSSO.

NGSS Lead States. 2013. Next Generation Science Standards: For states, by states. Washington, DC: National Academies Press.

Build a Food Chain Game

The Dirt on Decomposers

Fabulous Food Chains Video

Food Chain, Food Web Video for Kids

Fun With Food Webs

Royce C.A. 2018. Teaching Through Trade Books: Energy explorations. Science and Children 55 (5): 20–25.

Topics

Earth & Space Science

Levels

Elementary

Asset 2