Introduction to Basic Science

Science Grade 3 Revision Sheet

1. 📌 Essentials

• Science involves asking questions, observing, and experimenting.
• Living things need air, water, food, and shelter.
• Plant parts: roots, stems, leaves, flowers.
• Animal groups: mammals, birds, insects, reptiles.
• Major human organs: heart, lungs, stomach.
• Earth's layers: crust, mantle, core.
• Landforms: mountains, valleys, rivers, plains.
• Weather phenomena: rain, snow, wind, sunshine.
• States of matter: solid, liquid, gas.
• Forces: push, pull, gravity.
• Re and conserve to protect the environment.
• Scientific method: question, hypothesis, experiment, observe, conclude.

2. 🧩 Key Structures & Components