Exploring Atoms and Molecules
Grade 10th Grade · Science · 45 min
What's Included
Learning Objective
I can describe the basic structure of atoms and how they combine to form molecules.
Warm-Up Video
Stated Clearly · 12:15
What Is An Atom And How Do We Know?
Guided Notes
3 key concepts
- 1
Democritus first proposed the idea of the atom, calling them Atomos, meaning uncuttable, though he lacked evidence to support his claim.
- 2
Lavoisier found that certain pure substances, called elements, could not be broken down further through chemical reactions, leading to the discovery of the 118 elements on the periodic table.
- 3
John Dalton discovered that elements react in small, whole number ratios, suggesting that elements are made of tiny, indivisible units called atoms, which are nearly identical in size within a single element.
Practice Questions
6 questions · Multiple choice
Exit Ticket
Quick comprehension check
“Describe the basic structure of an atom and explain how atoms combine to form molecules, according to the information presented in the video.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
