February 4

Chemical Reactions & Completing Homework 🔬

📅 What We Did in Class:
1️⃣ Finished Elements, Compounds & Mixtures + Chemical Formulas Homework (20 minutes)

• Reviewed definitions and concepts from the previous assignment.

• Ensured all work was complete and accurate before moving on to new material.

2️⃣ Chemical Reactions Notes (Direct Instruction)

• Defined what a chemical reaction is.

• Discussed how molecules break apart and form new substances during chemical reactions.

• Identified reactants (starting substances) and products (new substances formed).

• Learned how atoms interact and how chemical bonds are broken and reformed.

• Explored six key signs that indicate a chemical reaction is taking place, such as:

  • Color change

  • Gas production (bubbles)

  • Formation of a precipitate

  • Temperature change

  • Light production

  • Odor change

💡 Why This Matters:
Chemical reactions are everywhere in daily life, from cooking food to rusting metal. Understanding how atoms rearrange during reactions helps us make sense of the physical and chemical world around us.

✅ Make sure your notes are complete and ready for review!