If I burned a piece of paper into ashes which statement would be true?

mass of the ashes would be equal to the mass of the paper before the chemical change

The mass would be less than the mass of the paper because it burned

The volume would be less than the volume of the paper before the chemical change

Sample A is 30 degrees Celsius and Sample B is 100 degree Celsius. If I were to drop a skittle in each, which would have an increased reaction?

Sample B because the temperature is greater than A

Sample A because the temperature is lower than B

Sample A because the temperature is greater than B

Sample B because the temperature is lower than A

I am in a rush and need my bagel to cook within 2 minutes. What should I do?

Increase the temperature of the toaster

Decrease the temperature of the toaster

If I placed one fruit in the fridge and the other in a warm windowsill what would happen?

The windowsill would increase how fast the fruit ripens because it is warm

The fruit would ripen faster in a cold fridge

The windowsill would decrease how fast the fruit ripens because it is cold

If I have a cookie that is 20 grams and crush it into a fine power what would be true?

The mass of the powder would be the same as the mass of the cookie

the mass of the powder would be less than the mass of the cookie

the mass of powder would be greater than the mass of the cookie

If I burn wood until it is ash, what would be the outcome?

the mass of the ash will be equal to the mass of the wood

the mass of the ash will be more than the mass of the wood

the volume of the wood would be less than the volume of the ash

I was roasting a marshmallow and noticed it turned brown/black after being heated. I can conclude...

The brown/black solid is a new substance meaning a chemical change

the brown/black solid is a new substance meaning a physical change

The brown/black solid changed size and color meaning a physical change

What does the law of conservation of mass state?

the total mass changes because of chemical changes

the total mass changes because of gases

What happens during a physical change?

a substance may look or feel different, but does not lose its identity

the identity of the substance is changed

Which is a clue that a chemical change has occurred?

a beaker suddenly becomes very warm when you mix two room temperature liquids in it

a liquid forms bubbles when it reaches a high temperature

water changes color when you add food coloring to it

a car door feels hot if you touch it on a summer afternoon

what type of arrangement and motion do particles in a liquid have?

particles are in contact with each other, but they are able to slip past on another

particles are closely packed together and vibrating

particles are not in contact with each other and are moving very quickly

particles are not in contact with on another and are moving at extreme speeds

Which of the following summarizes the law of conservation of mass when dealing with a chemical change?

the total mass of the reactants equals the total mass of the products

the total mass of the reactants is greater than the total mass of the products

the total mass of the reactants is less than the total mass of the products

3.2 Changes of Matter

Authored by Olivia Boone

Science

8th Grade

NGSS covered

Used 232+ times

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37 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Can be reversed & NO new substance formed

physical change

chemical change

Tags

NGSS.MS-PS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A new substance is formed & is irreversible or not easy reversed

physical change

chemical change

Tags

NGSS.MS-PS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

melting ice cream

physical change

chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cooking Eggs

chemical change

physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If I heat a substance and it burns it is a .....

chemical change

physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

You put 3 ice cubes in a sealed bag and record the mass of the ice in the bag. You wait for the ice to melt. What would you discover?

The mass of the water in the bag will be less than the mass of the ice in the bag.

The mass of the water in the bag will be more than the mass of the ice in the bag.

The mass of the water in the bag will be the same as the mass of the ice in the bag

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If I have a cookie that is 30 grams. If I crush it up the mass of the crumbs would be?

The mass would be the same

The mass would be less

The mass would be greater

Tags

NGSS.MS-PS1-2

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3.2 Changes of Matter

Can be reversed & NO new substance formed

A new substance is formed & is irreversible or not easy reversed

melting ice cream

Cooking Eggs

If I heat a substance and it burns it is a .....

You put 3 ice cubes in a sealed bag and record the mass of the ice in the bag. You wait for the ice to melt. What would you discover?

If I have a cookie that is 30 grams. If I crush it up the mass of the crumbs would be?

If I burned a piece of paper into ashes which statement would be true?

As I increase temperature, the reaction rate will...

Sample A is 30 degrees Celsius and Sample B is 100 degree Celsius. If I were to drop a skittle in each, which would have an increased reaction?

Access all questions and much more by creating a free account

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