Mixtures

What is matter?

• A substance that cannot be seen or touched

• A substance that does not occupy space

• A substance that occupies space, has mass, and is composed of microscopic particles

• A substance that has no mass

Tags

NGSS.MS-PS1-5

What is a mixture?

• A single substance with uniform properties

• A substance that changes its properties

• A sample of matter consisting of two or more substances in varying proportions

• A substance that cannot be separated

What are physical properties?

• Properties that are not measurable

• Properties that change the substance

• Characteristics that cannot be observed

• Observable characteristics of matter that can be used to identify particular materials

Which tool can be used to separate iron filings from sand?

• Tweezers

• Coffee filter

• Sieve

• Magnet

What is a substance?

• A particular kind of matter with uniform properties

• A mixture of different materials

• A property of matter

• A tool used for separation

Which of the following is an example of a mixture?

• Sand and water

• Pure water

• Iron

• Oxygen

What does a sieve do?

• Separates larger particles from smaller ones

• Attracts magnetic materials

• Measures mass

• Filters liquids

What is the purpose of using a coffee filter in separation?

• To filter out fine particles from a liquid

• To attract iron filings

• To measure the volume of a liquid

• To separate large particles