A sieve separates objects mainly by…
Particle size
Birth date
Chemical name
Temperature alone
Trivia for Kids 8–14 · Mixed
Separation Station
Ten fresh questions for ages 8–14 exploring separation station. Mixed difficulty with explanations and host verification notes in the import file.
A magnet removes iron filings from sand using a difference in…
Magnetic response
Melting point
Solubility only
Colour only
Distillation separates a liquid mixture using differences in…
Magnetic poles
Boiling behaviour
Letter count
Grain shape only
True or false: Dissolving a solid always destroys its chemical identity.
True
False
Chromatography splits ink colours because components…
All have identical attraction
Become new elements
Move differently through the system
Travel only by magnetism
Why let muddy water stand before pouring the clearer top off?
Water loses all microbes
Heavy particles settle
Mud becomes invisible oxygen
Salt turns into stones
A centrifuge speeds separation mainly by…
Freezing labels
Bright lighting
Rapid spinning
Adding fragrance
Crystals can be recovered from a dissolved solid by…
Magnetising every molecule
Cutting the water
Adding only air bubbles
Concentrating the solution
Why does a separating funnel suit oil and water?
They have identical densities
Both must be solids
It changes oil into water
They form distinct liquid layers
Reverse osmosis uses pressure to drive water through…
A solid glass wall
A metal sieve with large holes
An open fishing net
A selective membrane