Exploring the Conservation of Mass in Chemical Reactions

Exploring the Conservation of Mass in Chemical Reactions

Assessment

Interactive Video

Science

6th - 10th Grade

Hard

NGSS
MS-PS1-2, MS-PS1-5, MS-PS2-5

Standards-aligned

Created by

Olivia Brooks

FREE Resource

Standards-aligned

NGSS.MS-PS1-2
,
NGSS.MS-PS1-5
,
NGSS.MS-PS2-5
The video tutorial explains the properties of steel wool, primarily composed of iron, and its reaction with vinegar and oxygen. The process demonstrates the law of conservation of mass, as the mass remains unchanged despite the chemical reaction. The reaction results in the formation of iron oxide, commonly known as rust, which is characterized by a color change and brittleness.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary element that steel wool is made of?

Zinc

Aluminum

Iron

Copper

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a property of steel wool?

Very thin fibers

Gray metallic color

Rough surface

Smooth surface

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does vinegar do to the steel wool?

Makes it shiny

Strips away some of the wax

Covers it with wax

Turns it into powder

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the balloon sucked into the flask?

The balloon is deflated

The flask is cooled

Oxygen is used up in a chemical reaction

The flask is heated

Tags

NGSS.MS-PS2-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the law of conservation of mass state?

Mass is destroyed during a chemical reaction

Mass is created during a chemical reaction

Mass changes form during a chemical reaction

Mass is neither created nor destroyed

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What evidence shows that a chemical reaction occurred with the steel wool?

The steel wool melted

The balloon was sucked into the flask

The steel wool turned into liquid

The steel wool expanded

Tags

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the new color of the steel wool after the reaction?

Blue

Gray

Green

Brownish reddish

Tags

NGSS.MS-PS1-2

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