Separating Mixtures

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What property is used to separate sand and pebbles in a sieve?

Back

Size - The sieve allows smaller particles (sand) to pass through while larger particles (pebbles) remain.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as water.

Front

Which material dissolves in water: salt, oil, or cement?

Back

Salt - Salt is soluble in water, while oil and cement are not.

Front

What property is used to separate marbles of different colors?

Back

Color - Marbles can be sorted based on their color.

Front

What is the best method to separate small pebbles from sand?

Back

Pour the sand and pebbles through a screen with small holes.

Front

How can you make sugar dissolve faster in water?

Back

Stir the mixture - Stirring increases the interaction between sugar and water.

Front

What is filtration?

Back

Filtration is a process used to separate solids from liquids or gases using a filter.

Front

What is an example of a soluble substance?

Back

Sugar - Sugar dissolves in water, making it a soluble substance.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination of elements.