Mixtures
What is a mixture?
A combination of two or more substances that can be separated by physical means.
What is a property?
A characteristic or feature of a substance that can be observed or measured.
What is one method to separate solids?
Using a magnet or a sieve.
How can we separate a mixture?
By using techniques such as filtration, evaporation, or magnetic attraction.
Name one observable property.
Color, shape, or size.
What tool might you use to separate mixtures?
A filter or strainer.
What property can we use to separate parts of a mixture?
Observable properties like particle size, shape, color, and magnetic attraction.
How does color help in separating mixtures?
Different colors can indicate different substances, making it easier to separate them visually.
Explain how filtration works.
Filtration separates solids from liquids by passing the mixture through a filter, which allows the liquid to pass while retaining the solid.
What is particle size?
The size of the individual particles in a substance, which can affect how they can be separated.
What shape might indicate a substance?
The shape of a crystal or grain can help identify a solid in a mixture.
Give an example of a mixture that can be separated.
Sand and iron filings; they can be separated using a magnet.