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Questions and Answers
What is the branch of science that deals with the study of the composition and properties of matter and the changes it undergoes?
What is the branch of science that deals with the study of the composition and properties of matter and the changes it undergoes?
Chemistry
What are the two types of changes observed in matter in our daily life?
What are the two types of changes observed in matter in our daily life?
Physical changes and chemical changes
Define physical changes and provide an example.
Define physical changes and provide an example.
Physical changes are temporary changes in which no new substance is formed. Example: Water changing into ice on freezing.
Explain the concept of chemical changes with an example.
Explain the concept of chemical changes with an example.
What are some of the physical properties that might change during a physical change?
What are some of the physical properties that might change during a physical change?
What is the branch of science that deals with the study of the composition and properties of matter and the changes it undergoes?
What is the branch of science that deals with the study of the composition and properties of matter and the changes it undergoes?
What are the two types of changes observed in matter in our daily life?
What are the two types of changes observed in matter in our daily life?
Define physical changes and provide an example.
Define physical changes and provide an example.
Explain chemical changes and provide an example.
Explain chemical changes and provide an example.
What are the characteristics of physical changes?
What are the characteristics of physical changes?
Flashcards
Chemistry
Chemistry
The branch of science that studies the composition, properties, and changes of matter.
Physical Change
Physical Change
A temporary change in matter where no new substance is formed.
Chemical Change
Chemical Change
A change in matter where one or more new substances are formed.
Physical Properties
Physical Properties
Characteristic traits that can be observed without changing the substance's identity, like color or size.
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Matter
Matter
Anything that has mass and takes up space.
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Types of Changes
Types of Changes
Matter can undergo physical or chemical changes.
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Rusting of Iron
Rusting of Iron
A chemical change where iron reacts with oxygen to form iron oxide (rust).
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Water to Ice
Water to Ice
An example of a physical change where water changes its state (solid) but remains water.
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New Substance
New Substance
A substance with a different chemical makeup/formula than the initial material.
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Temporary Change
Temporary Change
A change that can sometimes be reversed easily.
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Chemical Composition
Chemical Composition
The atoms and the ratios of elements in a substance.
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State Change
State Change
Transformation from one state of matter (solid, liquid, gas) to another.
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Color Change
Color Change
A physical property that indicates a change like when leaves in autumn turn from green to red, orange, or yellow.
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Shape Change
Shape Change
A physical change where the form or shape of matter is altered without changing the chemical composition.
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Size Change
Size Change
A physical change altering the extent or dimensions of matter, without altering the chemical recipe.
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What is Chemistry
- Chemistry is the branch of science that deals with the study of the composition and properties of matter and the changes it undergoes.
Types of Changes in Matter
- There are two types of changes in matter: physical changes and chemical changes.
Physical Changes
- A physical change is a temporary change in which no new substance is formed.
- The chemical composition of the original substances remains the same.
- Physical properties like color, state, shape, and size may change.
- Example: Water changing into ice on freezing and then melting back into water when kept at room temperature.
- This type of change is reversible, meaning the original substance can be regained.
Chemical Changes
- A chemical change is a permanent change in which a new substance is formed.
- The chemical composition of the original substance changes.
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