# Grade 7 Science Module: Earth around the Sun

This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.

Each SLM is composed of different parts. Each part shall guide you step-by-step as you discover and understand the lesson prepared for you.

Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these.

Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task.

Hello kids! How are you doing today? You’ve probably noticed longer nights than daytime in December or longer daylight than nights in the summer. While the occurrence of the day and nights is due to the earth’s rotation around its axis, what do you think causes this variation in day and night on earth?

In your previous grade, you tracked the weather for the whole school year. You found out that there are two seasons in the Philippines: rainy and dry. You might have noticed too that there are months of the year when it is cold and months when it is hot.

The seasons follow each other regularly and you can tell in advance when it is going to be warm or cold and when it is going to be rainy or not.

But can you explain why there are seasons at all? Do you know why the seasons change? In this module you will learn the position of the earth in its orbit, and its characteristics around the sun.

Most Essential Learning Competency:

• Using Models, relate the position of the Earth in its orbit to the height of the sun in the sky.

After going through this module, you are expected to:

• Determine the characteristics of the Earth’s orbit from the sun.
• Illustrate the Earth and its orbit at different times of the year.
• Explain the relationship of the height of the sun in the sky to the seasons.

SCI7-Q4-MOD7

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