Earth Science for STEM: Quarter 1 Module 1

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Questions and Answers

What is the primary purpose of the Self-Learning Module (SLM) mentioned?

To provide employment opportunities for students

To prepare students for international examinations

To offer resources for teachers to use in classrooms

To allow students to learn while at home (correct)

Which of the following is NOT mentioned as a development team member?

Researcher (correct)

Writer

Illustrator

Editor

What year was the first edition of this module published?

2021 (correct)

2018

2020

2022

What does Republic Act 8293, section 176 specify regarding government works?

Prior approval is needed for commercial exploitation of government works. Signup and view all the answers

Who is listed as the Secretary of Education in the provided document?

Leonor Magtolis Briones Signup and view all the answers

Which of the following is a task associated with the development of the module?

Designing the module layout Signup and view all the answers

What is the address of the Department of Education's Region IV-A CALABARZON?

Gate 2, Karangalan Village, Cainta, Rizal Signup and view all the answers

Which of the following activities is suggested for learners in this module?

Learn individually at home Signup and view all the answers

What is the primary reason that temperature affects the ability of a planet to support life?

It regulates the speed of chemical reactions. Signup and view all the answers

Why is liquid water crucial for supporting life on Earth?

It serves as a solvent for biochemical reactions. Signup and view all the answers

How does the atmosphere play a role in sustaining life on Earth?

It regulates temperature and contains gases needed for respiration. Signup and view all the answers

What is the primary method through which living organisms harness energy?

Through photosynthesis and cellular respiration. Signup and view all the answers

How are nutrients typically recycled on Earth?

By being consumed and excreted by organisms. Signup and view all the answers

What requirement must be fulfilled for a planet to ensure it can support life?

Adequate levels of liquid water. Signup and view all the answers

Which of the following factors is least likely to directly affect a planet's ability to support life?

The geological age of the planet. Signup and view all the answers

Which characteristic of nutrients is essential for life on Earth?

They must be renewable and replaceable. Signup and view all the answers

What role does temperature play in supporting life on Earth?

It influences the speed of chemical reactions and the state of water. Signup and view all the answers

Why is water considered essential for life on Earth?

It facilitates chemical reactions necessary for biological processes. Signup and view all the answers

What function does the atmosphere serve in relation to life on Earth?

It provides chemicals such as nitrogen and carbon dioxide needed for life. Signup and view all the answers

How does the presence of greenhouse gases affect Earth?

They trap heat, maintaining a temperature suitable for life. Signup and view all the answers

What is a significant feature of water in its liquid state on Earth?

It allows living organisms to consume it for biological processes. Signup and view all the answers

What characteristic of Earth contributes to its ability to hold a significant amount of atmosphere?

The planet's size and its distance from the sun. Signup and view all the answers

Which description best relates to Earth's early environment?

It lacked the necessary conditions for life to exist. Signup and view all the answers

What effect does low temperature have on chemical reactions in living organisms?

It slows down chemical reactions and can produce ice, hindering life. Signup and view all the answers

What is the most significant factor affecting Earth's temperature?

Gas in the atmosphere Signup and view all the answers

Which of the following is not a function of Earth's atmosphere?

It provides energy. Signup and view all the answers

Which statement best defines a greenhouse gas?

It is a gas that traps heat. Signup and view all the answers

What can be inferred about an Earth-like planet with a thick carbon dioxide atmosphere and no volcanic activity?

The planet is hot and no nutrient cycling occurs. Signup and view all the answers

How does the ozone layer benefit life on Earth?

By protecting it from the sun’s harmful radiation. Signup and view all the answers

What is the expected effect of an increase in greenhouse gases in Earth’s atmosphere?

Earth’s temperature will increase. Signup and view all the answers

What is one role of the atmosphere in relation to meteorites?

It protects Earth by burning up small to medium size meteorites. Signup and view all the answers

What concept explains why increased atmospheric gases lead to global warming?

The greenhouse effect. Signup and view all the answers

What is the potential consequence of the complete depletion of the ozone layer?

Increased penetration of ultraviolet radiation to Earth's surface Signup and view all the answers

Which options are not functions attributed to Earth's ozone layer?

Producing rainfall Signup and view all the answers

Which factor is considered essential for life to exist on Earth?

Liquid water Signup and view all the answers

How does temperature influence Earth's ability to support life?

Temperature regulates biological and chemical processes Signup and view all the answers

Which statement about living organisms and energy is true?

Some organisms can utilize energy from chemical substances Signup and view all the answers

What factor affects a planet's ability to retain its atmosphere?

All of the above Signup and view all the answers

If Earth were larger than its current size, how would its atmosphere be affected?

It would possess a denser atmosphere Signup and view all the answers

In what way do volcanoes contribute to supporting life on Earth?

They assist in nutrient cycling within ecosystems Signup and view all the answers

Study Notes

Introduction to Earth's Characteristics for Life

Earth is approximately 4.543 billion years old; early conditions were inhospitable for life.
The transformation of the environment over time allowed life to evolve from microorganisms to complex organisms.

Key Characteristics Essential for Life

Temperature
- Influences molecular movement and reaction rates; ideal temperature is crucial for life.
- Too low temperatures can freeze water; too high can degrade biological molecules.
Water
- Fundamental for biological processes; absence disrupts essential life reactions.
- Exists as ice at poles and as liquid along the equator, making it consumable for organisms.
Atmosphere
- Acts as a protective shield against solar radiation and small meteorite impacts.
- Contains greenhouse gases (e.g., CO2 and CH4) that trap heat, preventing extreme cooling.
- Provides essential chemicals like nitrogen and CO2 for sustaining life; influenced by planetary size and solar distance.
Energy
- Necessary for biological processes; life harnesses energy mainly from sunlight (photosynthesis) or chemical substances (chemosynthesis).
Nutrients
- Vital for growth and development of organisms; recycled through natural processes on Earth.

Role of Biological Factors

Temperature affects the ability of a planet to maintain life-supporting conditions.
Liquid water is crucial for all known life; it enables chemical reactions necessary for biological functions.
The atmosphere is essential for protecting living organisms from harmful radiation and providing gases for respiration and photosynthesis.

Assessment Questions

Understanding of temperature, water, atmosphere, energy, and nutrients is fundamental for assessing Earth’s ability tosupport life.
Evaluating the effects of these factors helps explain their significance in sustaining biological diversity.

Multiple Choice Questions Overview

Factors influencing Earth's temperature include orbital size and distance from the sun.
The atmosphere protects against radiation, provides insulation, and facilitates nutrient cycling.
Greenhouse gases function to trap heat, affecting global temperature.
Ozone layer depletion could lead to increased harmful radiation reaching the Earth's surface.

Conclusion

Earth’s unique combination of temperature, water, atmosphere, energy, and nutrients creates optimal conditions for life.
Changes in any of these factors could significantly impact the planet's biodiversity and livability.

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Description

Explore the essential characteristics of Earth that support life in this first module of the Earth Science curriculum for STEM students. This quiz covers fundamental concepts regarding the planet's environment and its significance for sustaining life. Enhance your understanding of Earth Science with this engaging assessment.