Human circulatory

Have you ever wondered how oxygen and nutrients travel throughout your body? Your heart works continuously to pump blood and keep your body functioning.

In this WebQuest, you will become a science investigator and explore the human circulatory system using online educational resources. You will discover the functions of the heart, blood, and blood vessels and learn how to maintain a healthy circulatory system. Get ready to investigate how this amazing system keeps you alive!

Your task is to create an educational poster or infographic about the human circulatory system.

Your output must include:

1. The three main components of the circulatory system.
2. The functions of the heart, blood, arteries, veins, and capillaries.
3. A diagram showing the pathway of blood circulation.
4. Three healthy habits that help maintain a healthy circulatory system.
5. A short explanation of why the circulatory system is important.

You may work individually or in small groups, following your teacher’s instructions.

Step 1: Explore. Read the online resources provided in the Resources section.

Step 2: Identify. List the major components of the circulatory system and explain their functions.

Step 3: Investigate. Find out how the heart pumps blood and how arteries, veins, and capillaries transport blood throughout the body.

Step 4: Illustrate. Draw a diagram showing how blood travels between the heart, lungs, and body.

Step 5: Apply. Identify three healthy habits that help protect the heart and circulatory system.

Step 6: Create. Prepare your poster or infographic using paper and coloring materials or a digital design tool.

Step 7: Present. Share your output with the class and explain what you learned from the activity.

Evaluation

Students will be evaluated based on the following criteria, with a total of 100 points:

1. Accuracy of Scientific Information – 30 points The poster or infographic presents correct information about the heart, blood, and blood vessels.

2. Diagram and Correct Labels – 25 points The diagram clearly illustrates blood circulation and correctly labels the major components of the circulatory system.

3. Healthy Habits and Recommendations – 15 points The output includes three appropriate healthy habits that help maintain a healthy circulatory system.

4. Creativity and Organization – 15 points The poster or infographic is neat, creative, well-organized, and easy to understand.

5. Presentation and Use of Resources – 15 points Students clearly explain their output and use the provided educational resources appropriately.

Grading Scale:

• 90–100 points: Excellent – Demonstrates a thorough understanding of the topic.
• 80–89 points: Very Good – Demonstrates good understanding with minor errors.
• 70–79 points: Satisfactory – Demonstrates basic understanding but needs improvement.
• Below 70 points: Needs Improvement – Requires additional guidance and review.

Students will receive feedback based on their performance to help them improve their understanding of the human circulatory system.

Congratulations! You have completed your investigation of the human circulatory system. Through this WebQuest, you learned how the heart, blood, and blood vessels work together to transport oxygen and nutrients throughout the body.

You also discovered the importance of maintaining a healthy heart through proper nutrition, regular physical activity, and healthy daily habits.

Reflect on these questions:

1. What important information did you learn about the circulatory system?
2. How did the online resources help you understand the lesson?
3. How can you apply your learning to your daily life?

Credits

Created by: Janisah M. Dimaporo

Subject: Science 8 – The Human Circulatory System

Educational Resources:

• KidsHealth. Your Heart and Circulatory System. https://kidshealth.org/en/kids/heart.html
• Khan Academy. Circulatory System. https://www.khanacademy.org/science/biology/human-biology/circulatory-s…
• Khan Academy. Respiratory and Circulatory Systems. https://en.khanacademy.org/science/ms-biology/x0c5bb03129646fd6%3Acells…

Purpose: This WebQuest was developed for educational purposes to help Grade 8 students understand the human circulatory system through online research, inquiry-based learning, and creative activities.

Acknowledgment: Credit is given to the educational websites listed above for the learning resources used as references in developing this WebQuest.

Teacher Page: Exploring the Human Circulatory System

Subject: Science
Grade Level: Grade 8
Topic: The Human Circulatory System
Time Allotment: 60 minutes
Teaching Approach: Inquiry-Based Learning and Collaborative Learning

Overview

This WebQuest helps students explore the human circulatory system using online educational resources. Students will investigate the functions of the heart, blood, and blood vessels and explain how blood circulates throughout the body.

Learning Objectives

At the end of the activity, students should be able to:

1. Identify the major components of the circulatory system.
2. Explain the functions of the heart, blood, arteries, veins, and capillaries.
3. Describe the pathway of blood circulation.
4. Identify healthy habits that help maintain a healthy circulatory system.

Target Learners

This WebQuest is designed for Grade 8 Science students who have basic knowledge of the human body and its organ systems.

Materials Needed

• Computer, tablet, or smartphone
• Internet connection
• Printed learning materials as an alternative
• Paper, markers, and coloring materials
• Online educational resources listed in the WebQuest

Teaching Procedure

1. Introduce the topic by asking students about the function of the heart.
2. Guide students in exploring the recommended online resources.
3. Let students identify the components and functions of the circulatory system.
4. Ask students to create a poster or infographic illustrating blood circulation.
5. Have students present their outputs and explain their findings.
6. Assess their understanding using the provided rubric.

Assessment

Students will be assessed based on scientific accuracy, correct labeling, healthy-heart recommendations, creativity, organization, and presentation.

Teacher’s Role

The teacher will serve as a facilitator by guiding students through the investigation, answering questions, checking the reliability of information, and providing feedback. The teacher should ensure that all students can access the resources and provide printed alternatives when internet access is limited.

Educational Value

This WebQuest promotes independent learning, critical thinking, collaboration, and responsible use of online resources. It allows students to actively explore scientific concepts and apply their learning through a creative output.

Adaptation

For students with limited internet access, the teacher may provide printed copies of the resources and diagrams. Students who need additional support may work with a partner or use labeled illustrations to help them understand the lesson.