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States of matter 🧊➡️💦➡️🌬️ Matter is all things are made of some materials. It's found in 3 forms: solid, liquid and gas. Did you know? 🧪 You breathe in oxygen and breathe out carbon dioxide.
Weighing solids ✏️ Solids are often weighed in kilograms and grams. Did you know? 🧊 A solid has a fixed volume and shape.
Measuring liquids 💦 Liquids like water, juice and milk are measured in litres and millilitres. Did you know? 🥤 Liquids don't have a definite shape. They take the shape of the container.
Height of people 👥 The height of people is usually measured by feet and inches. Did you know? It takes you a few minutes to finish a meal, but it takes your body about 12 hours to digest this food.
Measuring distance 🛣️ The distance that you cover while going from one place to another is calculated in metres and kilometres. Did you know? 🐆 The cheetah is the fastest land animal in the world.
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Weather ☔️ The day to day condition of the sun, wind and clouds is said to be the weather of a particular day.
Climate 🌬️ Climate is the condition of the sun, wind and clouds of a particular place over a longer period of time. Did you know? ☃️ There are many types of clouds: cumulus, stratus, cirrus and nimbus.
How is rain formed? 🌧️ The heat from the sun turns the water from the rivers, oceans and seas into water vapour. This vapour condenses into clouds and into raindrops.
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Rotation 🔄 Rotation is our Earth turns round once in one day. The side that faces the sun has day and the portion doesn't face the sun has night.
Revolution 🌏🌞 Revolution is our Earth takes one year to go around the sun.
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Temperature 🌡️ The temperature of something tells you how hot or cold it is.
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What is light? Something that helps you see everything around you is called light. Did you know? 💡 Scientists study more about light in a branch of Physics known as optics.
Sources of light 🔦 You can get light from natural as well as artificial sources. The sun and the moon are natural sources. Electric lights are said to be artificial sources.
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Sound 🔊 Sound is something you hear with your ears.
