The video tutorial by Melissa covers the basics of matter, including the classification of pure substances and mixtures. It explains the differences between elements, compounds, and the types of mixtures: homogeneous and heterogeneous. The tutorial includes practice questions to help viewers identify and classify different substances and mixtures. Melissa also provides resources for further learning.

What should you do before starting the study session?

• Take notes

• Download the free study plan

• Read the textbook

• Watch the entire video

What is matter composed of?

• None of the above

• Atoms and molecules

• Only molecules

• Only atoms

Tags

NGSS.MS-PS1-1

Which of the following is a pure substance?

• Salt water

• Iron

• Air

• Wet sand

What type of compound is NaCl?

• Covalent compound

• Ionic compound

• Metallic compound

• Organic compound

Which of the following is a homogeneous mixture?

• Black coffee

• Wet sand

• Orange juice with pulp

• Blood

What type of mixture is air?

• Pure substance

• Compound

• Heterogeneous

• Homogeneous

Which of the following is a heterogeneous mixture?

• Black coffee

• Tea with sugar

• Blood

• Salt water

What is the classification of carbon monoxide (CO)?

• Compound

• Element

• Homogeneous mixture

• Heterogeneous mixture

Tags

NGSS.MS-PS1-1

What type of mixture is tea with dissolved sugar?

• Homogeneous mixture

• Heterogeneous mixture

• Pure substance

• Element

Which of the following is an example of a compound?

• Silver

• Iron

• Salt water

• Carbon dioxide

Tags

NGSS.MS-PS1-1