Science for Grade 1
1 Introduction to Science
1-1 What is Science?
1-2 Importance of Science in Daily Life
1-3 Basic Scientific Tools and Equipment
2 Observing and Describing
2-1 Observing Objects and Events
2-2 Describing Objects Using Senses
2-3 Recording Observations
3 Classifying and Grouping
3-1 Understanding Classification
3-2 Grouping Objects Based on Similarities
3-3 Using Classification Keys
4 Measuring and Comparing
4-1 Introduction to Measurement
4-2 Measuring Length, Weight, and Volume
4-3 Comparing Measurements
5 Exploring Materials and Substances
5-1 Identifying Common Materials
5-2 Properties of Materials (e g , hardness, flexibility)
5-3 Changes in Materials (e g , melting, dissolving)
6 Investigating Forces and Motion
6-1 Understanding Forces
6-2 Observing Motion
6-3 Simple Machines (e g , lever, pulley)
7 Exploring Living Things
7-1 Identifying Plants and Animals
7-2 Basic Needs of Living Things
7-3 Life Cycles of Plants and Animals
8 Understanding the Environment
8-1 Ecosystems and Habitats
8-2 Interactions Between Living Things and the Environment
8-3 Importance of Biodiversity
9 Weather and Climate
9-1 Observing Weather Patterns
9-2 Understanding Climate
9-3 Weather Instruments and Their Use
10 Safety in Science
10-1 Importance of Safety in Science Experiments
10-2 Handling Equipment Safely
10-3 Emergency Procedures in the Science Lab
Understanding Climate

Understanding Climate

1. What is Climate?

Climate is the long-term pattern of weather in a particular area. It includes the average weather conditions over many years, such as temperature, rainfall, and wind patterns.

Example: The climate of a desert is usually hot and dry, with very little rain throughout the year.

2. Climate Zones

The Earth is divided into different climate zones based on temperature and rainfall. These zones include tropical, temperate, and polar climates.

Example: The Amazon rainforest is in the tropical climate zone, where it is warm and humid all year round.

3. Factors Affecting Climate

Several factors influence climate, including latitude, altitude, ocean currents, and the Earth's tilt. These factors determine how much sunlight an area receives and how warm or cold it gets.

Example: The Mediterranean climate is influenced by the warm ocean currents and the Earth's tilt, resulting in hot, dry summers and mild, wet winters.

4. Climate Change

Climate change refers to significant changes in global temperatures and weather patterns over a long period. It is often caused by human activities, such as burning fossil fuels and deforestation.

Example: The melting of polar ice caps is a result of climate change, leading to rising sea levels and changes in ocean currents.

5. Seasons

Seasons are the result of the Earth's tilt and its orbit around the Sun. Different parts of the Earth receive varying amounts of sunlight throughout the year, causing changes in temperature and weather.

Example: In the Northern Hemisphere, summer occurs when the North Pole is tilted towards the Sun, resulting in longer days and warmer temperatures.

6. Weather vs. Climate

Weather is the day-to-day conditions of the atmosphere, such as rain, wind, and temperature. Climate, on the other hand, is the long-term average of these conditions over many years.

Example: A sunny day with a temperature of 25°C is weather. The average temperature of 20°C over 30 years in the same area is climate.

7. Importance of Understanding Climate

Understanding climate helps us predict weather patterns, plan for natural disasters, and manage resources effectively. It also helps us address issues related to climate change and its impact on the environment.

Example: Farmers use climate information to decide when to plant and harvest crops, ensuring they can grow food efficiently.