FREE The Nucleus #1 | Crash Course Chemistry YouTube Video Lesson

Make atomic structure easier to teach with a no-prep YouTube video lesson focused on the nucleus, protons, neutrons, electrons, isotopes, atomic mass, atomic number, and how chemists describe the basic structure of atoms.

This free lesson helps students understand why the nucleus matters in chemistry. Students track how protons and neutrons define atomic identity, how electrons relate to the structure of atoms, and how isotope examples help explain why atoms of the same element can have different masses.

Use this free video guide for Grades 8-12 chemistry, physical science, NGSS review, science literacy, sub plans, or guided video lessons. This resource works well at the start of an atomic structure unit, as an introduction to matter and the periodic table, or as a quick review before bonding, reactions, or stoichiometry.

Want the larger set? After trying this free lesson, view the paid Crash Course Chemistry #2-#16 set here: Crash Course Chemistry #2-#16 Video Lesson Set.

Classroom Use at a Glance

• Best for: Grades 8-12 chemistry, physical science, atomic structure, matter, NGSS review, sub plans, and guided video lessons
• Use cases: atomic structure, matter, periodic table, isotope, chemistry foundations, bell-ringer extension, flipped lesson, absent-student makeup work, review, or sub plans
• Key themes: nucleus, protons, neutrons, electrons, atomic number, atomic mass, isotopes, elements, atoms, and chemical identity
• Differentiation: students can complete the written video guide or use the 10-question multiple-choice quiz as an alternate assessment
• Time needed: video runtime plus about 20-45 minutes for discussion, written responses, and assessment

What’s Included

• Student worksheet with rigorous short-answer questions
• End-of-video reflection and challenge questions
• 10-question multiple-choice quiz
• Teacher guide and lesson plan
• Worksheet and quiz answer keys
• NGSS and CCSS science literacy alignment
• Printable worksheet, Google Slides/PPTX, Google Forms quiz, and Google Classroom link PDF

Flexible Lesson Pacing

• 20-Minute Quick Clip: bell-ringers, early finisher blocks, quick review, or short sub plans
• 30-Minute Flexible Mini-Lesson: full short-answer guide while keeping the lesson compact
• 45-Minute Full Mini-Lesson: guided discussion, vocabulary support, and in-class writing time

Skills Addressed

• Explain the basic structure of atoms
• Identify the role of the nucleus
• Connect protons to atomic identity
• Describe neutrons, isotopes, and atomic mass
• Use chemistry vocabulary in context
• Support answers with evidence from the video
• CCSS Anchor alignment connects vocabulary, evidence, discussion, and supported interpretation to NGSS HS-PS1-1.

Video is not included. This product provides classroom-ready materials to use with the Crash Course Chemistry YouTube video.