Physical and Chemical Changes

Physical and Chemical Changes

Assessment

Flashcard

Chemistry

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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20 questions

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1.

FLASHCARD QUESTION

Front

A change in which a substance undergoes changes in its physical properties is called _____.

Back

physical change

2.

FLASHCARD QUESTION

Front

Browning of an apple after it is cut is an example of ____.

Back

chemical change

3.

FLASHCARD QUESTION

Front

When Magnesium ribbon is burnt in oxygen, the product obtained is ___.

Back

Magnesium oxide

4.

FLASHCARD QUESTION

Front

When Magnesium ribbon is ignited using a candle flame, it burns with a __________.

Back

brilliant white light

5.

FLASHCARD QUESTION

Front

Which of the following is a physical change?

  • Rusting of iron
  • Melting of wax
  • Burning of coal
  • Curdling of milk

Back

Melting of wax

6.

FLASHCARD QUESTION

Front

Which of the following is a chemical change?

Twinkling of stars

,

Cutting of fruits

,

Cooking of vegetables

,

Boling of water

Back

Cooking of vegetables

7.

FLASHCARD QUESTION

Front

A chemical change may involve:
- change in color only
- change in temperature only
- evolution of gas only
- all of the above

Back

all of the above

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