Air and water are natural resources that are essential for our survival. We cannot live without air or water.
Air
Air is present everywhere around us. We cannot see the air with our eyes but we can feel its presence.
Uses of air
We use air to fly kites and fill tires for vehicles.
Fire needs air to burn.
Air is necessary to dry wet clothes.
Windmills need air to move.
It helps to move sailboats.
Water
Water is a significant natural resource, and it is required for all living things to exist. Human beings need water to live and grow. Plants and animals also need water to survive.
Sources of water
The vital source of water is rain. The rainwater fills the seas, oceans, and lakes, and we use this water for various purposes. Many living things live under this water.
The rest of the water seeps into the ground. This water is called groundwater. We can draw groundwater by various methods like wells, hand pumps, etc.
Uses of water
We need water to drink and prepare food.
We need water to bathe.
We need water to wash clothes.
We need water to wash utensils.
WATCH AND LEARN
Class 1 Air and Water learning videos
Work through Air and Water with these lessons.
Video 1 of 9
LEARN BY DOING
Free Air and Water Olympiad Questions for Class 1
5 questions to build confidence. Choose an answer, then explore the explanation.
01
Luis measured the temperature every day for five days. Which day was the coldest?Monday - 61 degreesTuesday - 58 degreesWednesday - 66 degreesThursday - 72 degreesFriday - 75 degrees
Show answer & explanation
Answer: A. Tuesday
58 degrees is the lowest number in the set, making Tuesday the coldest day recorded.
02
The sea turtle starts life as an .
Show answer & explanation
The answer key for this sample question is not available yet.
03
You use a flashlight to shine a beam of light at a clear glass window. Which path will the light most likely follow?
Show answer & explanation
Answer: B. Some of the light will pass through the glass.
Clear glass is transparent, so most light passes through, but not necessarily all.
04
Cumulus, stratus and cirrus are all types of .
Show answer & explanation
The answer key for this sample question is not available yet.
05
You use a flashlight to shine a beam of light at mirror. Which path will the light follow?
Show answer & explanation
The answer key for this sample question is not available yet.