Exploring Pure Substances and Mixtures

Mr. Cy introduces the concept of matter, emphasizing its importance in science. He explains mass and inertia, their relationship, and discusses volume. The lesson covers the divisions of matter into pure substances and mixtures, detailing elements, compounds, and types of mixtures like homogeneous, heterogeneous, and colloids. The video concludes with a recap and encourages further exploration of physical and chemical properties.

Which branch of science is concerned with the study of living matter?

• Astronomy

• Physics

• Biology

• Chemistry

What is the relationship between mass and inertia?

• More mass means less inertia

• More mass means more inertia

• Mass and inertia are unrelated

• Inertia is the inverse of mass

What are the two main divisions of matter?

• Elements and Compounds

• Atoms and Molecules

• Pure Substances and Mixtures

• Solids and Liquids

Which of the following is a pure substance?

• Milk

• Saltwater

• Gold

• Air

What is a homogeneous mixture also known as?

• Emulsion

• Solution

• Suspension

• Colloid

Which of the following is an example of a heterogeneous mixture?

• Alloy

• Vinegar and oil

• Air

• Saltwater

What is the Tindle effect used to test?

• Whether a mixture is homogeneous

• Whether a mixture is a solution

• Whether a mixture is a colloid

• Whether a mixture is a pure substance

Which of the following is an example of an aerosol colloid?

• Fog

• Milk

• Mayonnaise

• Jelly

What type of colloid is milk?

• Aerosol

• Sole

• Foam

• Emulsion

Which of the following is an example of a gel colloid?

• Jelly

• Whipped cream

• Mayonnaise

• Smoke