Let's explore the amazing world of matter with this KS2 Science quiz! It's the first of two quizzes all about the three states of matter: solids, liquids, and gases, focusing on how they act differently.
Everything is made of matter, and it can be solid, liquid, or gas. Look around - objects like toys are solids, ice is solid water. Drinks are liquids, and the air around you is invisible matter - a mix of gases like oxygen. Steam is water in a gas form.
Have you learned about matter states? Test your knowledge with this fun KS2 Science quiz on Solids, Liquids, and Gases!
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You can find more about this topic by visiting BBC Bitesize - Solids, liquids and gases
Solids stay the same shape and size, whatever container they are in
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The shape of a liquid changes to fit its container
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Gases always take the same shape and volume as their containers. If not held in a sealed container, a gas will keep spreading
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The particles of a solid are held together by strong forces of attraction
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Gases have low density, with particles moving randomly and at high speed
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Ice is a solid. If you heat it, it melts and becomes a liquid (water)
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When water (a liquid) is cold enough it freezes and turns into ice (a solid)
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Water boils at 100o C if you live close to sea-level. If you lived at the top of a 3,048 metre mountain, your water would boil at 90o C!
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The Celsius temperature scale is based on the freezing and boiling points of water - 0o C is the freezing point and 100o C is the boiling point
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You can see the tiny solid crystals when you look closely at sugar
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