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What is the primary function of the small intestine?A. Store f***s B. Absorb nutrients C. Produce bile D. Store urine
14/09/2026

What is the primary function of the small intestine?
A. Store f***s B. Absorb nutrients C. Produce bile D. Store urine

Find the distance between −6 and 4 on a number line.A. 2 units. B. 8 unitsC. 10 units. D. 12 units
14/09/2026

Find the distance between −6 and 4 on a number line.
A. 2 units. B. 8 units
C. 10 units. D. 12 units

Which of the following is an example of a derived quantity?A. Time. B. MassC. Lengthb. D. Speed
14/09/2026

Which of the following is an example of a derived quantity?
A. Time. B. Mass
C. Lengthb. D. Speed

If a = −5 and b = 3, find |a − b|.A. −8. B. −2C. 2. D. 8
12/09/2026

If a = −5 and b = 3, find |a − b|.
A. −8. B. −2
C. 2. D. 8

What is the best way to show that 1500 has exactly 3 significant figures?A. 1500 B. 1.5 × 10³ C. 1.50 × 10³ D. 15 × 1...
12/09/2026

What is the best way to show that 1500 has exactly 3 significant figures?
A. 1500 B. 1.5 × 10³ C. 1.50 × 10³ D. 15 × 10²

📝 QUICK CHECKWhich temperature scale is the SI unit?A. Celsius. B. FahrenheitC. Kelvin. D. Centigrade
12/09/2026

📝 QUICK CHECK
Which temperature scale is the SI unit?
A. Celsius. B. Fahrenheit
C. Kelvin. D. Centigrade

Which of the following is the SI unit of mass?A. Meter. B. KilogramC. Second. D. Kelvin
12/09/2026

Which of the following is the SI unit of mass?

A. Meter. B. Kilogram
C. Second. D. Kelvin

11/09/2026

🔬 SCIENTIFIC METHOD

🏫 Ballah G. Forkpa Foundation
Subject: General Science
Chapter 1: Scientific Foundations
Topic: Scientific Method
Level: High School
━━━━━━━━━━━━━━━
🎯 WHAT IS THE SCIENTIFIC METHOD?

The scientific method is a systematic process scientists use to investigate questions, solve problems, and reach conclusions based on evidence.

In simple words:

«It is a step-by-step way of finding answers using observation and evidence.»
━━━━━━━━━━━━
🔎 STEPS OF THE SCIENTIFIC METHOD

1️⃣ Observation 👀
Scientists observe something that catches their attention.

Example: A plant near a window grows faster than one kept in darkness.

2️⃣ Question ❓
They ask a question based on the observation.

Example: Does light affect plant growth?

3️⃣ Hypothesis 💡
A hypothesis is a testable prediction or possible explanation.

Example: If a plant receives more light, then it will grow faster.

4️⃣ Experiment 🧪
An experiment is carried out to test the hypothesis.

5️⃣ Collect & Analyze Data
Scientists record measurements and observations, then examine the results.

6️⃣ Conclusion ✅
The evidence is used to determine whether the results support or do not support the hypothesis.

7️⃣ Communicate Results 📢

Scientists share their findings through reports, presentations, or research papers.
━━━━━━━━━━━━━━━━━
⚙️ THREE IMPORTANT VARIABLES

🔵 Independent Variable: The factor you deliberately change.
Example: Amount of light.
🟢 Dependent Variable: The factor you measure.
Example: Plant growth.
🟡 Controlled Variables: Factors kept the same.
Example: Water, soil, temperature, and type of plant.

🧠 Memory Trick:
Independent = I change it.
Dependent = I measure it.
Controlled = I keep it the same.
━━━━━━━━━━━━━━
⭐ QUICK SUMMARY
Observation, Question, Hypothesis, Experiment, Data, Conclusion and Communication

🎓 EXAM TIP
Remember:
Testable prediction = Hypothesis 💡
Variable that is changed = Independent variable 🔵Variable that is measured = Dependent variables

🧠 BIOLOGY — NEURONSBallah G . Forkpa Foundation| Learn Today. Lead Tomorrow. 🌟Topic: NeuronsLevel: High School🎯 Learning...
11/09/2026

🧠 BIOLOGY — NEURONS

Ballah G . Forkpa Foundation| Learn Today. Lead Tomorrow. 🌟

Topic: Neurons
Level: High School

🎯 Learning Objectives

By the end of this lesson, you should be able to:
Define a neuron.
Identify the main parts of a neuron.
Explain the functions of each part.
Describe how neurons transmit nerve impulses.
Distinguish between sensory, relay, and motor neurons.

🧠 1. What Is a Neuron?

A neuron is a specialized cell that receives, processes, and transmits electrical and chemical signals in the nervous system.

👉 Think of a neuron as the body's communication wire. It carries messages between the brain, spinal cord, sense organs, muscles, and glands.

🔬 2. Main Parts of a Neuron

Part Function

Cell body Contains the nucleus and controls cell activities
Dendrites Receive signals from other cells
Axon Carries nerve impulses away from the cell body
Myelin sheath Insulates the axon and speeds up impulses
Axon terminals Pass signals to the next cell

🧠 Memory Trick

D-A-T = Dendrites, Axon, and Terminals

Dendrites receive, Axon carries, and Terminals transmit.

⚡ 3. How Does a Neuron Send a Message?

The basic pathway is:

Stimulus, Dendrites, Cell body, Axon, Axon terminals and Next cell

For example:

🔥 Touching a hot object
🫳sensory neurons detect the heat
🫳 nerve impulses travel toward the CNS
🫳 the brain/spinal cord processes the information
🫳 motor neurons send instructions
🫳 muscles contract
🫳 your hand moves away.

🧬 4. Types of Neurons

1️⃣ Sensory Neuron

Carries impulses from receptors to the central nervous system (CNS).

Receptor and CNS

2️⃣ Relay Neuron

Found mainly in the brain and spinal cord. It connects sensory neurons to motor neurons.

Sensory & Relay & Motor

3️⃣ Motor Neuron

Carries impulses from the CNS to effectors, such as muscles or glands.

CNS Effector

⚠️ Common Mistakes

❌ Dendrites carry impulses away from the cell body.
✅ Dendrites generally receive signals.

❌ The axon carries impulses toward the

10/09/2026

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