Physical & chemical change

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Physical Change Physical changes in a substance affect its physical properties No new substance is formed during a physical change. Physical changes are usually reversible.

Transcript of Physical & chemical change

Page 1: Physical & chemical change

Physical Change

Physical changes in a substance affect its physical properties

No new substance is formed during a physical change.

Physical changes are usually reversible.

Page 2: Physical & chemical change

Ice into water…

Melting ice into water…

Is this an example of physical change?

Ask yourself:‘Can water be turned back into ice?’

(i.e can the change be reversed?)

Page 3: Physical & chemical change

Dissolving salt into water

Is this an example of Physical change?

Can you write down a method for reversing this process?

Page 4: Physical & chemical change

Chemical Change

Changes of matter that produce new substances.

The new substances have chemical properties which are different from the original substances.

Chemical changes are usually difficult to reverse.

Page 5: Physical & chemical change

Signs of chemical change

There is a permanent colour change A gas is given off There is a change in temperature A precipitate (solid) forms when two

liquids are mixed Light is emitted

Can you think of others?


Physical and Chemical Changes AKS 11: Distinguish between a physical and chemical change.

Physical and Chemical Changes AKS 11: Distinguish between a physical and chemical change.

Physical and Chemical Changes Change is COOL!. Physical vs. Chemical Changes Physical changes occur when substances or objects undergo a change without.

Physical and Chemical Changes Change is COOL!. Physical vs. Chemical Changes Physical changes occur when substances or objects undergo a change without.

Physical and Chemical Changes. Objective: Chemical/Physical Change □ The learner will be able to distinguish between a physical and chemical change.

Physical and Chemical Changes. Objective: Chemical/Physical Change □ The learner will be able to distinguish between a physical and chemical change.

Physical change Chemical change Nuclear change

Physical change Chemical change Nuclear change

Chemical Reactions. Chemical & Physical Changes In a physical change, the chemical composition of the substance remains constant. Examples of physical.

Chemical Reactions. Chemical & Physical Changes In a physical change, the chemical composition of the substance remains constant. Examples of physical.

Chemical Reactions - Observing Chemical Change Properties and Changes in Matter Matter can undergo both physical change and chemical change.

Chemical Reactions - Observing Chemical Change Properties and Changes in Matter Matter can undergo both physical change and chemical change.

Is it a Chemical or Physical Change?. A half eaten apple turns brown. Physical or Chemical Change?

Is it a Chemical or Physical Change?. A half eaten apple turns brown. Physical or Chemical Change?

Example of Physical Change Example of Chemical Change.

Example of Physical Change Example of Chemical Change.

Ch. 2 - Classification of Matter I. Describing Matter Physical Property Physical Change Chemical Change Chemical Property MATTER.

Ch. 2 - Classification of Matter I. Describing Matter Physical Property Physical Change Chemical Change Chemical Property MATTER.

Chemical Reactions. Questions 1.What is the difference between a chemical and physical change? 2.Give an example of a chemical change and a physical change.

Chemical Reactions. Questions 1.What is the difference between a chemical and physical change? 2.Give an example of a chemical change and a physical change.

Chemical Reactions - Apple Inc.a1.phobos.apple.com/us/r30/CobaltPublic/v4/9c/bf/f... · Baking the dough Your Turn! Physical Change Physical Change Chemical Change . During a chemical

Chemical Reactions - Apple Inc.a1.phobos.apple.com/us/r30/CobaltPublic/v4/9c/bf/f... · Baking the dough Your Turn! Physical Change Physical Change Chemical Change . During a chemical

Physical vs Chemical change PPT

Physical vs Chemical change PPT

Physical and Chemical Changes 6.Sc.P.K.11 Contrast physical and chemical change.

Physical and Chemical Changes 6.Sc.P.K.11 Contrast physical and chemical change.

Physical and Chemical Change in Matter

Physical and Chemical Change in Matter

Chemical and Physical Change Demonstrations

Chemical and Physical Change Demonstrations

Physical Or Chemical Change Qz

Physical Or Chemical Change Qz

Chemical or Physical Change?. Physical Change Chemical before change is the same chemical afterwards. Only its form has been altered. Examples: Big piece.

Chemical or Physical Change?. Physical Change Chemical before change is the same chemical afterwards. Only its form has been altered. Examples: Big piece.

Chemical & Physical Change D. Crowley, 2008. Chemical & Physical Change To know the difference between a chemical and physical change Wednesday, August.

Chemical & Physical Change D. Crowley, 2008. Chemical & Physical Change To know the difference between a chemical and physical change Wednesday, August.

Chemical vs. Physical Change

Chemical vs. Physical Change

Physical change or chemical change

Physical change or chemical change