Year 8 - Whats The Matter 2 Revision 1

Particles in solids are

• Close together and vibrating, and held in position

• Close together but free to move around

• Far apart and moving fast

How is most of Earth's fresh water stored?

• As groundwater

• In lakes and rivers

• As ice in polar ice caps and glaciers

• As water vapour in the atmosphere

Steam is often described as the gas state of water. Why must this be incorrect?

• Steam is not a form of water

• Steam is white but water vapour is blue

• Steam is visible but water vapour is invisible

• Water does not have a gas state

What is the correct definition of volume?

• How much matter is in an object, measured in kilograms

• Can't be squeezed into a smaller space

• Changes shape easily and flows

• How much space something takes up, measured in litres

What is the correct definition of mass?

• How much matter is in an object, measured in kilograms

• Does not change shape easily

• Changes shape easily and flows

• How much space something takes up, measured in litres

What is the correct definition of fluid?

• Can't be squeezed into a smaller space

• Changes shape easily and flows

• To squeeze or squash

• How much space something takes up, measured in litres

What is the correct definition of incompressible?

• To squeeze or squash

• How much space something takes up, measured in litres

• Does not change shape easily

• Can't be squeezed into a smaller space

Which statements best describes the properties of a gas?

• Rigid and can't be compressed

• Fluid that finds lowest place in container

• Fluid that expands or compresses to fill a container

Which statement best describes the properties of liquids?

• Rigid and can't be compressed

• Fluid that finds lowest place in a container

• Fluid that expands or compresses to fill a container

Which statements about gases are true?

• They are fluids that change shape depending on their container

• Their particles are slow

• They don't tend to fill up the entire space of a container

• Their volume is fixed