A granular substance is added to a liquid. Which of the following would provide evidence to suggest a chemical change has taken place?

The granules dissolve completely.

The volume of the liquid increases.

The granules seem to get smaller.

When two substances are mixed, they might form a new substance. Which of the following would indicate that a new substance has been formed?

The temperature of the mixture decreases.

The volume of the mixture increases.

The mass of the mixture increases.

One of the substances dissolves.

A student mixes two clear liquids together. After a few minutes, a white powder can be seen settling on the bottom of the test tube. Which of the following is a conclusion that the student can draw based on these observations? The two clear liquids -

have combined to produce a new substance.

were pure substances before they were mixed.

are toxic and should be handled with extreme caution.

have been stored too long and are no longer good.

A student added white crystals to a clear liquid. The crystals dissolved in the liquid. After a few seconds, the liquid became quite warm and then turned bright red in color. The first indication that a chemical change was taking place could be observed when -

the temperature of the liquid increased.

the crystals were added to the liquid.

the crystals dissolved in the liquid.

the color of the mixture changed.

Which of the following situations provides evidence that a chemical change has taken place?

Two liquids are mixed, and a solid substance forms.

Water, when boiled, evaporates and turns into vapor.

Sugar, when added to iced tea, dissolves into the liquid.

A piece of paper is cut into many small pieces.

A student notices that sugar, when heated over a flame, turns black. How does the student know that a new substance is being formed?

The color of the sugar changes to black.

A temperature of the sugar increases.

Sugar began to melt within the test tube.

Sugar started as white crystals.

A physical change occurs when a substance _____.

breaks into individual elements

A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?

Burning a piece of paper with a match.

Cutting a piece of paper with scissors.

Folding a piece of paper into an airplane.

Ripping a piece of paper with their hands.

Chemical & Physical Changes

Science

6th Grade

NGSS covered

Used 93+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

what is the definition of physical change?

any change that results in the formation of new chemical substances.

rusting

changes affecting the form of a chemical substance, but not its chemical composition.

any property that is measurable, whose value describes a state of a physical system

MULTIPLE CHOICE QUESTION

1 min • 1 pt

what is the definition of chemical change?

any change that results in the formation of new chemical substances.

changing clothes

matter cannot be created or destroyed, only change form

changes affecting the form of a chemical substance, but not its chemical composition.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is burning wood a chemical or physical change?

chemical

physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Is hammering wood together to build a house a chemical or physical change?

chemical

physical

Tags

NGSS.5-PS1-4

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is NOT an example of chemical change?

sour milk

burning wood

breaking a pencil

rust

Tags

NGSS.MS-PS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.

Chemical Change

Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Are hard boiled eggs a physical or chemical change?

Physical

Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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Chemical & Physical Changes

what is the definition of physical change?

what is the definition of chemical change?

Is burning wood a chemical or physical change?

Is hammering wood together to build a house a chemical or physical change?

Which of the following is NOT an example of chemical change?

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.

Are hard boiled eggs a physical or chemical change?

When you break a cracker into pieces it is a

Is melting iron a physical or chemical change?

When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?

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