Mixtures and Solutions Quiz

What is the main question being investigated in this session?

• How can mixtures be created?

• How can a mixture be separated?

• How do filters work?

• What are the properties of solids?

Which material is described as having a hard, coarse, and rocky texture?

• Diatomaceous earth

• Salt

• Gravel

• Sand

What is the color of diatomaceous earth as observed in the investigation?

• Black

• Cream

• White

• Brown

What happens to salt when it is mixed with water?

• It remains unchanged

• It forms a cloudy mixture

• It dissolves

• It floats on water

What was observed when diatomaceous earth was mixed with water?

• The mixture became cloudy

• The powder dissolved

• The powder floated

• The mixture became clear

Which method was successful in separating gravel from water?

• Using a screen

• Using a magnet

• Evaporation

• Using a filter paper

Which method was successful in separating diatomaceous earth from water?

• Using a magnet

• Using a sieve

• Using a filter paper

• Using a screen

Why was the filter paper unsuccessful in separating salt from water?

• The salt dissolved in water

• The salt particles are too large

• The salt evaporated

• The filter paper was too coarse

What is the primary reason the screen was unable to separate salt from water?

• The screen was clogged

• The salt dissolved in water

• The salt particles were too large

• The screen holes were too large

What will be the focus of the next investigation?

• Separating salt from water

• Properties of solids

• Using different filters

• Creating new mixtures