Question | Answer |
Name the main things that solids have | Solids stay in one place, unless they are pushed or pulled, do not flow, solids don't change their volume(cannot be squashed) |
Why heavy solids often sinks in liquids? | Because heavy solids are more dense than liquid so it sinks. |
If you put too much water in orange juice, what will happen? | The orange juice will dilute and you won't be able to see the orange juice |
What features do gas particles have? | the particles can move anywhere by themselves, they always bounce into things and us. |
Name the main things that liquids have | liquids can flow, it fill in whatever container it's in, cannot be squashed |
Why do we still smell the smelly gas even if the air is not moving? | Because the smelly particles move on their own, also known as diffusion |
Why does diffusion happen slower in liquids? | Because the particles move slower and there's less space between the particles |
How can the landfill sites owner stop the gases escaping into the air? | By covered in a layer of clay. |
What is a landfill site? | Large area which rubbish is left |
What can cause the gas to explode in the landfill site? | Sparks |
Why can't we feel the air pressure? | Because we are used to it |
When does a balloon stop expanding? | When the pressure inside of a balloon is the same as outside |
What happen to the particles when they're in cold air? | The particles will be close together and create more pressure |
What is aether? | aether is what gas particles held in |
Why does it difficult to pull the hemispheres out when the air is sucked out it these? | Because there is no air pressure inside the hemisphere so, the pressure of the air on the outside of the hemispheres pushes them together |