QUESTION: QUESTIONS AND ANSWERS ON INTRODUCTION TO INTEGRATED SCIENCE II

INTRODUCTION TO SCIENCE TRY QUESTIONS

SECTION B

QUESTION (1)

1. (a) Explain each of the following terms:

  • i. teaching portfolio

    A teaching portfolio is a collection of documents and materials that showcase a teacher's skills, experiences, and accomplishments in teaching. It often includes lesson plans, teaching philosophies, student assessments, and reflections on teaching practices.

  • ii. technology

    In the context of teaching, technology refers to the use of digital tools, resources, and methods to enhance teaching and learning. This can include educational software, online resources, multimedia content, and digital communication tools.

  • iii. teaching philosophy

    A teaching philosophy is a statement that outlines a teacher's beliefs, values, and approaches to teaching. It reflects the teacher's understanding of how students learn best and guides their instructional decisions.

1. (b) State any five (5) components of a science teaching portfolio.

  • Lesson plans: Detailed plans for science lessons.
  • Student assessments: Examples of assessments used to evaluate student learning.
  • Teaching reflections: Reflections on teaching practices and student outcomes.
  • Science teaching resources: Materials used in science teaching like worksheets or labs.
  • Evidence of student learning: Samples of student work showing learning outcomes.

1. (c) Distinguish between renewable and non-renewable sources of energy? Citing TWO examples in each case.

Renewable energy sources are replenished naturally and can be used sustainably. Examples: Solar energy, Wind energy.

Non-renewable energy sources are finite and will eventually run out. Examples: Fossil fuels (like coal), Natural gas.


QUESTION (2)

2. (a) State the various conversion in the following: A boy ringing a bell

When a boy rings a bell: Mechanical energy (from the boy's action) is converted to sound energy (the bell's ring).

2. (b) i. Explain to Basic Six learners the meaning of environment

For Basic Six learners, the environment means the surroundings where we live, including plants, animals, air, water, and land. It's where living things interact.

2. (b) ii. List the four components of environment

  • Atmosphere (air)
  • Hydrosphere (water)
  • Lithosphere (land)
  • Biosphere (living things)

2. (c) Discuss four negative effects of deforestation on the environment.

  • Loss of biodiversity: Deforestation leads to loss of habitats for many species.
  • Soil erosion: Without trees, soil can be washed away by rain.
  • Climate change: Trees absorb CO2; deforestation increases CO2 levels.
  • Disruption of water cycles: Deforestation affects local water cycles and can lead to reduced rainfall.

QUESTION (3)

3. (a) Explain each of the following terms:

  • i. Ohm’s law

    Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. Formula: V = IR.

  • ii. The law of conservation of energy

    The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

3. (b) With the aid of a diagram, Briefly explain the water cycle

The water cycle involves evaporation, condensation, and precipitation. Water evaporates from surfaces, condenses into clouds, and falls back as rain or other precipitation.

3. (c) As a Basic 5 teacher, identify any (2) misconceptions your pupils will have about the environment and suggest their corresponding scientific facts.

  • Misconception: Cutting down trees doesn't affect the environment.

    Scientific fact: Cutting down trees contributes to loss of biodiversity, increases carbon dioxide, and affects climate.

  • Misconception: Littering doesn't harm the environment.

    Scientific fact: Littering harms wildlife, pollutes water bodies, and affects human health.


QUESTION (4)

4. (i) Explain the term first aid

First aid is the initial assistance given to a person suffering from an injury or illness before professional medical help arrives.

4. (ii) State any 3 key aspects of First Aid

  • Assess the situation and ensure safety.
  • Call for professional help if needed.
  • Provide basic care for injuries or conditions.

QUESTION (5)

5. (a) List any five activities carried out by scientists during a scientific investigation

  • Observing phenomena.
  • Formulating hypotheses.
  • Conducting experiments.
  • Collecting data.
  • Drawing conclusions.

5. (b) Distinguish between conductors and insulators and give one example each.

Conductors: Allow electricity to flow through them. Example: Copper.

Insulators: Do not allow electricity to flow through them. Example: Rubber.

5. (I) What is immunity?

Immunity is the body's ability to resist infection or disease.

5. (II) Explain two ways to acquire immunity

  • Natural immunity: Through infection and recovery.
  • Vaccination: Through vaccines that stimulate the body's immune response.

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