Year 7 science revision for assessment 1

Name the separation technique used to recover the salt from seawater.

• evaporation

• distillation

• filtration

• decanting

Two or more substances mingled together, but not chemically combined are known as a __________

• residue

• solution

• distillate

• mixture

In a coffee machine, the ground coffee is separated from the coffee solution by using..

• sand paper

• filter paper

• toilet paper

• tissue paper

Solid particles which are left on filter paper while filtration is called

• filtrate
• residue
• solvent
• solute

What is the correct order for obtaining salt from a mixture of sand and salt?

• Dissolving in water - filtration - evaporation

• Evaporation - filtration - dissolving in water

• Filtration - dissolving in water - evaporation

Which separation technique uses the apparatus shown in the diagram?

• filtration

• evaporation

• distillation

• chromatography

When you drop an object, what are the main energy transfers involved?

• Gravitational potential to thermal

• Kinetic to gravitaional potential

• Gravitational potential to chemical

• Gravitational potential to kinetic

Tags

NGSS.MS-PS3-5

When you release a stretched spring, what are the main energy transfers involved?

• Elastic to kinetic

• Kinetic to elastic

• Elastic to thermal

• Elastic to chemical

Which of these are fossil fuels?

• Coal

• Oil

• Gas

• All of the above

What is power measured in?

• Joules

• Hertz

• Watts

• Newtons