Density / Mixtures and Solutions Review

Front

What is density?

Back

Density is the mass of an object divided by its volume. It tells us how much matter is packed into a certain space.

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What is a mixture?

Back

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

Front

What is a solution?

Back

A solution is a special type of mixture where one substance (the solute) is completely dissolved in another (the solvent).

Front

What is filtration?

Back

Filtration is a method used to separate solids from liquids or gases using a filter that allows only the liquid or gas to pass through.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor, often used to separate a solute from a solvent in a solution.

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, such as iron, and is used to separate magnetic materials from non-magnetic ones.

Front

Why do some objects float while others sink?

Back

Objects float if they are less dense than the liquid they are in, and sink if they are more dense.

Front

What is the best method to separate sand and water?

Back

The best method to separate sand and water is filtration.

Front

What is the best method to separate paper clips from sand?

Back

The best method to separate paper clips from sand is magnetism.

Front

What happens to sugar when it is mixed with water?

Back

When sugar is mixed with water, it dissolves to form a solution.