Physical/Chemical Changes & Chemical Reactions Flashcard Review* 2425

Physical/Chemical Changes & Chemical Reactions Flashcard Review* 2425

Assessment

Flashcard

Science

7th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances with different properties.

2.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

3.

FLASHCARD QUESTION

Front

Example of a chemical change: Baking cookies.

Back

Baking cookies involves a chemical change as the ingredients undergo a transformation to create a new product.

4.

FLASHCARD QUESTION

Front

Example of a chemical change: Baking soda and vinegar reaction.

Back

This reaction produces carbon dioxide gas, indicating a chemical change.

5.

FLASHCARD QUESTION

Front

Example of a chemical change: Permanently dyeing your hair.

Back

The dye chemically alters the hair structure, resulting in a new color.

6.

FLASHCARD QUESTION

Front

Example of a chemical change: Iron fence rusting.

Back

Rusting is a chemical change where iron reacts with oxygen and moisture to form rust.

7.

FLASHCARD QUESTION

Front

Example of a physical change: Dissolving sugar in water.

Back

The sugar dissolves but retains its chemical identity; it can be recovered by evaporating the water.

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