Science for Grade 2
1 Introduction to Science
1-1 What is Science?
1-2 Importance of Science in Everyday Life
1-3 Basic Scientific Tools and Equipment
2 The Living World
2-1 Living and Non-Living Things
2-2 Characteristics of Living Things
2-3 Plants
2-3 1 Parts of a Plant
2-3 2 Functions of Plant Parts
2-3 3 Types of Plants
2-4 Animals
2-4 1 Types of Animals
2-4 2 Characteristics of Different Animals
2-4 3 Animal Habitats
3 The Human Body
3-1 Parts of the Human Body
3-2 Functions of Body Parts
3-3 Basic Needs of Humans
3-4 Health and Hygiene
4 The Earth and Beyond
4-1 The Earth
4-1 1 Earth’s Surface
4-1 2 Land and Water Forms
4-2 The Sky
4-2 1 Sun, Moon, and Stars
4-2 2 Day and Night
4-2 3 Weather and Seasons
5 Materials and Their Properties
5-1 Types of Materials
5-2 Properties of Materials
5-3 Changes in Materials
5-4 Recycling and Conservation
6 Forces and Motion
6-1 What is a Force?
6-2 Types of Forces
6-3 Motion
6-4 Simple Machines
7 Energy and Its Forms
7-1 What is Energy?
7-2 Types of Energy
7-3 Sources of Energy
7-4 Energy Conversion
8 Simple Experiments and Observations
8-1 Importance of Experiments
8-2 Basic Scientific Method
8-3 Simple Experiments to Observe Scientific Concepts
9 Safety in Science
9-1 Importance of Safety
9-2 Safety Rules in the Science Lab
9-3 Handling Equipment and Materials Safely
Basic Needs of Humans

Basic Needs of Humans

1. Food

Food is essential for providing the energy and nutrients our bodies need to function. Different types of food give us different nutrients, such as proteins, carbohydrates, fats, vitamins, and minerals. Eating a balanced diet helps us grow, stay healthy, and have the energy to play and learn.

Imagine food as the fuel for a car. Just as a car needs gasoline to run, our bodies need food to keep us moving and active.

2. Water

Water is crucial for our bodies to work properly. It helps to regulate body temperature, transport nutrients, and remove waste. Our bodies are made up of about 60% water, so it's important to drink enough water every day to stay hydrated and healthy.

Think of water as the liquid that keeps our body's engine running smoothly. Just like a car needs water to cool down, our bodies need water to stay cool and function well.

3. Air

Air, or more specifically, the oxygen in the air, is vital for our survival. Our bodies need oxygen to produce energy and keep our organs working. We breathe in oxygen and breathe out carbon dioxide, which is a waste product. This process is called respiration and is essential for life.

Imagine air as the wind that powers a sailboat. Just as a sailboat needs wind to move, our bodies need air to keep us alive and active.