Physical and Chemical Changes - Class 7

Physical and Chemical Changes - Class 7

Assessment

Flashcard

Chemistry

7th Grade

Practice Problem

Easy

Created by

Wayground Content

Used 12+ times

FREE Resource

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19 questions

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1.

FLASHCARD QUESTION

Front

The chemical formula for Magnesium Oxide?

Back

MgO

2.

FLASHCARD QUESTION

Front

Name the solution? Options: Iron Sulphate Solution, Iron sulphate solution, Iron Sulfate

Media Image

Back

Iron Sulphate Solution, Iron sulphate solution, Iron Sulfate

3.

FLASHCARD QUESTION

Front

Which of the following is only a physical change?

  • Rusting of Iron
  • Combustion of Magnesium Ribbon
  • Burning of Candle
  • Melting of wax

Back

Melting of wax

4.

FLASHCARD QUESTION

Front

Why does rusting of ships occur?

Back

The water of the sea contains salt

5.

FLASHCARD QUESTION

Front

Which of the following processes is used to prevent articles from rusting?

  • Crystallization
  • Digestion
  • Galvanization
  • Magnetic Effect

Back

Galvanization

6.

FLASHCARD QUESTION

Front

What is stainless steel mixed with so that it does not rust?

Media Image

Back

Iron

7.

FLASHCARD QUESTION

Front

Change of natural rubber latex to rubber sheet is a physical change. (True/False)

Media Image

Back

False

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