Chemical and Physical Changes in Matter

Mr. Cory Cole introduces a science lesson on properties and changes in matter. The lesson covers key vocabulary, physical and chemical properties, and changes. Students learn through definitions, examples, and interactive Q&A. The lesson concludes with a science experiment and a recap.

What is the main focus of this week's science lesson?

• Learning about plant biology

• Studying the water cycle

• Understanding properties and changes in matter

• Exploring the solar system

Which of the following is a physical property?

• Reactivity with acid

• Ability to rust

• Flammability

• Density

What happens during a physical change?

• A new substance is formed

• The physical properties of the substance change

• The substance changes its chemical composition

• The substance emits light

Which of the following is an example of a chemical change?

• Breaking glass

• Melting ice

• Boiling water

• Burning wood

What is a key indicator of a chemical change?

• Change in texture

• Change in size

• Change in color

• Change in shape

Why should tools be oiled?

• To increase their weight

• To change their color

• To prevent rusting

• To make them shiny

What is one method to prevent naturally occurring chemical changes?

• Heating

• Freezing

• Drying

• Melting

What is the purpose of the science experiment for the week?

• To explore physical changes

• To study the water cycle

• To observe chemical changes

• To learn about plant growth

What is the difference between physical and chemical properties?

• Chemical properties can be observed without changing the substance

• Chemical properties do not involve particle rearrangement

• Physical properties can be observed without changing the substance

• Physical properties involve changes in composition

What is the result of a chemical change?

• The substance changes its state

• A new substance is formed

• The substance changes its size

• The substance remains the same