Real World Application: Chemical vs. Physical Changes

Presentation

•

Science

•

7th - 8th Grade

•

Medium

•

NGSS

MS-PS1-2, MS-PS1-4, 5-PS1-4

Standards-aligned

OA Alamu

Used 2+ times

FREE Resource

16 Slides • 37 Questions

Real World Application: Chemical vs. Physical Changes

Presentation and Application Assessment

Mastery Activity:

On the NEXT Slide there will be about a 7 to 8 minute complete breakdown of physical and chemical changes (VIDEO). Watch the Video and take notes it is a youtube video. I like it because it ends in examples.

Multiple Choice

A mixture is the result of a physical change because...

The parts can be separated

A new substance is made

There is a chemical reaction

One part of the mixture disappears

Multiple Choice

What kind of properties can only be observed when a substance changes into a different substance?

physical properties

chemical properties

Multiple Choice

Fizzing, foaming, and burning are all examples of

Chemical change

Physical change

Multiple Choice

Change in color is a physical change.

True

False

Multiple Choice

Freezing Juice?

Physical Change

Chemical Change

Multiple Choice

Which of the following is NOT an example of a physical change?

crumpled paper

pencil sharpening

shrunken clothing

rust

Multiple Choice

A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?

Texture

Temperature

Shape

Mass

Multiple Choice

Is melting butter for popcorn a chemical or physical change?

chemical

physical

Multiple Choice

a piece of copper is cut in half

physical change

chemical change

Multiple Choice

fireworks explode

physical change

chemical change

Multiple Choice

ethyl alcohol boils at 79⁰C

physical change

chemical change

Multiple Choice

water absorbed by a paper towel

physical change

chemical change

Mastery Activity#2- PRESENTATION with Check IN Questions

On the NEXT Couple of slides, there is a presentation that will allow you to take any notes THAT YOU FEEL ARE IMPORTANT (In case you don't know what is important. ?? How did you do on the 10 questions Quiz after the VIDEO??? Whatever was tough, maybe the areas you want to focus on.)

Multiple Choice

Shredding a piece of paper

Chemical Change

Physical Change

Multiple Choice

Water freezing

Chemical Change

Physical Change

Multiple Choice

Glass bottle that is shattered

Chemical Change

Physical Change

Multiple Choice

Change in color, release of smell or light, and giving off heat are indicators of ___

a nuclear change

a physical change

a chemical change

a state change

Multiple Choice

Which of these is NOT an indicator of a chemical change?

a change in color

giving off or taking in of heat

the release of gases

a change in shape

Multiple Choice

In a chemical change, particles that make up two or more substances are rearranged to ___

form a mixture

form a new substance

mix into a solid

mix into a solution

FINAL ASSESSMENT/ REVIEW: HOW WELL DO I REALLY UNDERSTAND?

You will see much harder questions now- I hope you are ready and took notes.
HINT- If you get it wrong you may want to take notes on it- Copy the question and the answer- ASK us to break it down in CLASS
ARE YOU READY TO ROCK??????

Multiple Choice

Which is not a clue that could indicate a chemical change?

Change in color

Change in shape

Change in energy

Change in odor

Multiple Choice

Which is an example of chemical change?

Water freezes

Wood is cut

Bread is baked

Wire is bent

Multiple Choice

Which is an example of a physical change?

Metal rusting

Silver tarnishing

Water boiling

Paper burning

Multiple Choice

When a new substance is formed with different properties than the original substance it is called a

Chemical change

Physical change

Freezing

Boiling

Multiple Choice

Sublimation is a

chemical change

physical change

Multiple Choice

Under normal conditions ice melts at 0⁰C. Which of following describes this change?

physical change, heat is released

chemical change, heat is released

physical change, heat is absorbed

chemical change, heat is absorbed

Multiple Choice

Is sharpening a pencil a physical or chemical change?

Physical

Chemical

Multiple Choice

Is making orange juice a physical or chemical change?

Physical

Chemical

Multiple Choice

Which of these does NOT happen during a chemical change?

Atomic bonds are formed or break apart

New substance(s) are formed with different chemical properties

The number of atoms in the reaction stays the same

The chemical properties of the beginning substance(s) are the same as those of the end product(s)

Multiple Choice

A mixture is the result of a physical change because...

The parts can be separated

A new substance is made

There is a chemical reaction

One part of the mixture disappears

Multiple Choice

Properties that can be observed without changing the identity of the substance.

Physical

Chemical

Multiple Choice

Example of a physical property

magnetism

reactivity with oxygen

flammability

non-reactive

Multiple Choice

What kind of properties can only be observed when a substance changes into a different substance?

physical properties

chemical properties

Multiple Choice

The spoiling of milk is an example of which type of change?

Physical

Chemical

Both

Neither

Multiple Choice

Why is this a physical change?

It makes a mess

Same gas before and after

It changes form

It's not, it's a chemical change

Multiple Choice

Changes between states of matter are often which?

Chemical changes

Physical changes

Both

Neither

Multiple Choice

Gallium spoon melting is a physical change because a puddle of ___________ metal is left afterwards.

Iron

Steel

Aluminum

Gallium

Multiple Choice

Which of these is true of fruits blended together?

Chemical Change

Physical Change

Both types of changes

None of these

Poll

When it comes to being able to explain and Really identify real world examples of Physical and Chemical Changes, What level do you rate yourself? (BE HONEST- We will check and ask you later?)

4 - I am really, really good at the this concept. I can probably teach other students.

3- I get it, and I know the difference. I might get something wrong , but I don't need the teachers to really help me

2-I am still so, so. I probably need more practice to get much better.

1- I am so LOST. I do not get it at all. I probably need ONE on ONE help from my teacher

Real World Application: Chemical vs. Physical Changes

Presentation and Application Assessment

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