Atoms, Molecules, and Chemical Bonds

Atoms, Molecules, and Chemical Bonds

Grade 12th Grade · Science · 45 min· 7.ps1.1 – Evaluate And Communicate Information That All Substances In The Universe Are Made Of Many Different Types Of Atoms That Combine In Various Ways. 7.ps1.2: Collect And Analyze Data About The Physical Properties Of The Components Of A Mixture To Use As Evidence That The Identities Of The Components Change During A Chemical Reaction.

What's Included

Learning Objective

I can evaluate and communicate information that all substances in the universe are made of many different types of atoms that combine in various ways.

Warm-Up Video

Professor Dave Explains · 4:15

Types of Matter: Elements, Compounds, and Mixtures

Guided Notes

3 key concepts

  • 1

    Matter can exist in three phases: solid, liquid, and gas. For example, water can be ice (solid), liquid water, or steam (gas).

  • 2

    A physical change does not alter the chemical composition of a substance, like melting ice, while a chemical change involves the breaking and forming of chemical bonds to create new substances, such as hydrogen and oxygen combining to form water (H₂O).

  • 3

    Mixtures are combinations of two or more pure substances that can be separated by physical processes; these can be homogeneous, like sugar and water, or heterogeneous, like oil and water.

Practice Questions

10 questions · Multiple choice & Short answer

Exit Ticket

Quick comprehension check

Describe the difference between a physical change and a chemical change. Give an example of each, based on the video.

Complete Lesson Package

Get all 3 ready-to-use resources:

Teacher Guide
Student Doc
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