Science is the study of the natural world—how things work, why they happen, and what rules they follow. Scientists observe, ask questions, test ideas, and learn from evidence.

Main branches of science

• Physics ⚡ – energy, motion, force, light
• Chemistry 🧪 – substances, reactions, elements
• Biology 🧬 – living things: plants, animals, humans
• Earth Science 🌍 – Earth, weather, oceans, earthquakes
• Astronomy 🌌 – space, stars, planets

Basic science facts (general knowledge)

• The Earth revolves around the Sun
• Humans have 206 bones
• Water is made of hydrogen and oxygen (H₂O)
• Plants make food by photosynthesis
• The heart pumps blood through the body
• Sound needs a medium (air, water) to travel
• Light travels faster than sound

Science in daily life

• Electricity powers phones and lights
• Medicine helps cure diseases
• Science helps improve farming and food
• Technology comes from scientific discoveries

If you want, I can:

• Explain any topic (physics, chemistry, biology)
• Give exam notes (Grade 7–12)
• Do questions & answers
• Make it very easy or more advanced

Just tell me what part of science you want 👌