Chemistry Module 1 Lesson 1

​Module 1

By Lindsay Comer

Open Ended

Everything around you is made of what? Hint: 6 letter word

Matter!

Look around the room…

•Everything – all of the “stuff” around you – is made of matter!

•Chemistry is the study of matter and how it changes

Multiple Choice

Which step of the Scientific Method is a testable explanation of a situation or phenomena. (Hint: Typically written as an if-then statement.)

• Experiment

• Observation

• Hypothesis

• Data Analysis

​Your Hypothesis needs to be

Testable - can you design an experiment to test it?
Falsifiable - can it be proven wrong?

Multiple Choice

Which of the following is a relationship in nature supported by many experiments with no known exceptions?

• Scientific theory

• Legal law

• Scientific law

• General theory

Multiple Choice

Which of the following is an explanation of a natural phenomenon based on many observations and investigations over time?

• Scientific theory

• Legal law

• Scientific law

• General theory

Describe
Example: Law of Conservation of Mass
Matter cannot be created or destroyed - mass is conserved
CH₄ + 2 O₂ → CO₂ + 2 H₂O

​Scientific Law

Explain
Example: Atomic theory
Explains that all matter is made of atoms

Scientific Theory

Theory vs Law

Multiple Choice

If scientists are experimenting to gain knowledge for the sake of knowledge, what type of research are they conducting?

• Pure

• Applied

Multiple Choice

If scientists are helping to solve a specific problem, what type of research are they conducting?

• Pure

• Applied

Multiple Choice

The measurement of mass reflects...

• how much space the substance takes up

• how much Earth's gravitational pull affects the amount of matter

• how much matter is in a substance

• how much heat is a substance emitting

Multiple Choice

The measurement of weight reflects...

• how much space the substance takes up

• how much Earth's gravitational pull affects the amount of matter

• how much matter is in a substance

• how much heat is a substance emitting

Earth's gravitational pull on matter

​Weight

Amount of matter

​Mass

Mass vs Weight

Multiple Choice

Which would scientists use to measure amount of matter?

• Weight

• Mass

Open Ended

Why would a chemist need to use a model to study atoms and molecules?