Conservation of Matter

Is this equation balanced?

• Yes, everything appears the same amount on each side.

• No, there are too many hydrogen on the left side.

• No, there are too many oxygen on the left side.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What is an example of a closed system to show the Law of Conservation of Matter?

• Blowing up a balloon and letting the air escape

• Blowing up a balloon and not tying it off

• Not covering a candle and letting it burn

• Covering a candle with a glass bottle and letting it burn

Tags

NGSS.MS-PS1-5

A balanced equation demonstrates

• Conservation of Matter

• Conservation of Energy

• Energy has neither been created or destroyed

• The mass of the products is greater

Tags

NGSS.MS-PS1-5

The total number of atoms on the reactants side is 15, what is the total number of atoms on the products side?

• Not enough information to answer

• 10

• 15

• 20

Tags

NGSS.MS-PS1-5

The conservation of matter states that

• all matter is made up of particles

• the amount of matter changes in a closed system.

• matter has weight and takes up space.

• the amount of matter stays the same in a closed system.

Tags

NGSS.MS-PS1-5

An oreo cookie has a mass of 20 grams. It gets crushed into crumbs for a recipe.

What is the mass of the crumbs?

• 10

• 15

• 20

• 25

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• Yes, everything appears the same amount on each side.

• No, there are too many copper on the left side.

• No, there are too many oxygen on the left side.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

When ice melts, the water has the same_____ as the ice

• temperature

• mass

• state of matter

• shape

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Sarah and Beth were each given a ball of clay that has a mass of 400 grams. Both students used all of their clay to make an object. Sarah rolled hers into a ball, and Beth made a long, skinny rope. What is the mass Sarah's ball?

• 100 grams

• 200 grams

• 400 grams

• 800 grams

The law of conservation of mass says substances can neither be _______ nor ___________.

• Built; torn down

• Blended together; separated

• Created; destroyed

• Condensed; extracted

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2