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7G: States of Matter

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Why are solids, liquids and gases stored seperatesehold recycling centres? They all have different properties and have to be handled in different ways
What is volume measured in? Cubic Centimetres (cmᵌ)
Why are liquids transported in sealed containers? Liquids can flow, which makes it easy for liquids to be pumped in and out of the sealed containers
What is the definition of dense? When an object is to heavy for its volume
What do some gas cylinders contain which is burned in gas cookers? Propane
Put these states of matter in order, according to their densities (most dense - least dense) Solids - Liquids - Gases
Name 3 observations Scientists have made about ice. Ice can keep its shape, ice can't be squashed and ice can turn into a liquid when it is heated
The particles in solids make what movements? The particles are very close together and vibrate in fixed places.
The particles in gases make what movements? The particles are far apart and bounce off each other, when they collide
What are the properties of a liquid? Liquids can flow and can take the shape of any container
What is diffusion? Diffusion is when the particles move from a high concentration to a lower concentration
What happens to the particles in a balloon when you blow air inside? More particles are blown into the balloon, making the pressure increase
Why is methane gas produced in landfill sites dangerous? Gasses flow very easily, so the methane gas can flow through the landfill site and collect in pockets.
Explain how a balloon expands. A balloon expands because of the air particles that are in the air blown. The particles hit the side of the balloon, which makes the rubber stretch
Why do old fridges need to be checked? Old fridges contain a gas called CFCs which cause problems in the atmosphere
Created by: Toni.Perez