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7G Revision Science
Revision on waste and the environment.
Question | Answer |
---|---|
Where do non-recyclable materials go? | To landfill sights. |
Name 3 materials that are recyclable. | Paper, glass, metal. |
What are the 3 states of matter? | Solid, liquid and gas. |
What matter flows? | Gas and liquids. |
Which will take up the space of a container? | Gas. |
What is volume of an object? | It is the space it takes up measured in centimeters cubed. |
Which matter can be squashed and compressed? | Gas. |
Describe the particles of a solid. | The particles are very close together and are fixed but it is still vibrating. |
What is the name of the process of spreading of particles? | Diffusion. |
What is a vacuum? | It is a space where there are no air particles which will cause a 'sucking' force. |
What is air pressure? | It is the pushing force created by air when it wants to escape from a container. |
What makes landfills smell? | The natural gas they give off. |
How do the particles in gas move? | They bounce around randomly. |
How do the particles in liquid move? | They are close together and can go past each other. |
Can water be squashed? | No, only gas can. |