Classification of Matter: Pure Substances vs. Mixtures

What is the definition of matter?

• Anything that is solid

• Anything that is liquid

• Anything that can be seen and touched

• Anything that occupies space and has mass

Which of the following is an example of matter?

• A shadow

• A reflection

• A pencil

• A thought

How can pure substances be defined?

• Single substances that can be broken down by physical means

• Multiple substances that cannot be broken down by physical means

• Single substances that cannot be broken down by physical means

• Multiple substances that can be broken down by physical means

Which of the following is a pure substance?

• Salad

• Orange juice

• Gold

• Air

What is a homogeneous mixture?

• A single compound

• A mixture with a uniform appearance and composition

• A mixture with a varied appearance and composition

• A single element

Which of the following is a heterogeneous mixture?

• Pulp-free orange juice

• Table salt

• Salad

• Gold coins

Why is a chocolate chip cookie considered a heterogeneous mixture?

• It is a single element

• It has a varied appearance with different amounts of chips in each bite

• It is a single compound

• It has a uniform appearance

What is the classification of ice?

• Homogeneous mixture

• Compound

• Element

• Heterogeneous mixture

How would you classify a glass of milk?

• Compound

• Homogeneous mixture

• Element

• Heterogeneous mixture

What are the four main categories of matter?

• Elements, compounds, homogeneous mixtures, heterogeneous mixtures

• Solids, liquids, gases, plasma

• Metals, non-metals, metalloids, noble gases

• Organic, inorganic, physical, analytical