Physical & Chemical ChangesEarth Science Intro Unit

What are Physical Changes of Matter?• Physical Property-

1.A characteristic of a substance that can be observed and measured without changing the identity of the substance.

2. Use all your senses

I will be able to describe and identify physical and chemical properties of matter.

• Examples– Color – Size– Shape– Boiling point– Texture– Melting point– Mass– Magnetic attraction– Volume– Malleability– State of matter (solid, liquid,

gas)– Solubility– Electrical conductivity– Density

What are Physical Changes of Matter?Chemical Property-

1.Describes a substances ability to change into a new substance with different properties.

2.Some common chemical properties are:

a. Flammability – ability to burn

b. Reactivity – baking soda and vinegar

c. Rust - reacts with oxygend. Ripening of fruit

I will be able to describe and identify physical and chemical properties of matter.

What are Physical Changes of Matter?Physical Change:

1. A physical properties is changed from one form to another.

a. During a physical change the shape, size or appearance of an object may be altered.

b. The chemical make-up of the substance is not changed.

I will be able to describe the differences between chemical and physical changes of matter.

What are Physical Changes of Matter?Chemical Change:

1. Occur when one or more substances change into entirely new substances with different properties.

2. Chemical changes result in NEW substances, physical changes do not.

I will be able to describe the differences between chemical and physical changes of matter.

Signs that indicate a Chemical Change.1. Production of an odor2. Production of a gas

• Fizzing / foaming3. Changes in temperature

• Endothermic – absorbs heat (feels colder)

• Exothermic – gives off heat (feels hotter)

I will be able to identify if the following objects are chemical or physical changes of matter.

Chemical Physical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?

I will be able to identify if the following objects are chemical or physical changes of matter.

ChemicalPhysical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?

I will be able to identify if the following objects are chemical or physical changes of matter.

Physical Physical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?

I will be able to identify if the following objects are chemical or physical changes of matter.

Chemical Physical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?

I will be able to identify if the following objects are chemical or physical changes of matter.

ChemicalPhysical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?

I will be able to identify if the following objects are chemical or physical changes of matter.

Chemical Chemical

Chemical

PhysicalOr

Change?

Chemical

PhysicalOr

Change?