chemical and physical changes

5/22/2019

Ms. Nguyen demonstrates physical and chemical changes. (click the image to see more)

Today was a very exciting day of learning. Our guest teacher Ms. Nguyen started off the day by taking us to the gym to work on our field hockey skills. Following this, student's worked on their cross curricular math and fine arts activity. They are making amazing geometric designs using reflections, translations and rotations. After recess, students were introduced to their new math unit on measurement (see Learning intentions below). The afternoon was spent with some exciting demonstrations to teach students the differences between physical and chemical changes. We closed off the day getting deep into or inquiry on religions.

***BE AT SCHOOL BY 8:30 AM TOMORROW***

1) Gratitude Journal Entry

2)Field Trip Tomorrow

Bring your compass card a bag lunch or money to buy lunch
Dress for the weather
Be at school at 8:30am

3) Science:

Complete you Lab writ up for the baking soda a vinegar lab

4) Post A Response:

Today you learned about physical and chemical changes in science
Post 8 different changes (about 4 that are physical changes and 4 that are chemical changes)
Reply to another students post and say whether you think the change is PHYSICAL or CHEMICAL
Check the reply to you post. If you disagree with any of the answers to the 8 changes you posted reply and explain your thinking.

or

5/22/2019 04:57:31 pm

nathan

Nathan

5/22/2019 05:02:32 pm

Coke and Mentos
Breaking a tv
Flipping pages in a book
eating and then spitting paper out
Digesting food
Breaking glass
Melting ice cub
Cutting wood

Joseph

5/22/2019 06:58:57 pm

Chemical
Physical
Physical
Physical
Chemical
Physical
Physical
Physical

Sophie

5/22/2019 06:59:18 pm

physical:
Cutting wood
Breaking glass
Melting ice (i think physical)
Flipping pages ina book
Breaking a tv

chemical:
Digesting food
Eating then spittimg paper out
Coke and mentos

sophie

5/22/2019 07:13:01 pm

Oops, for the spitting paper i meant physical change

Sarah

5/22/2019 08:23:57 pm

Mr. Fisher

5/22/2019 09:38:14 pm

@Sophie- I really like how you categorized the answers into physical and chemical! Awesome!

Lucas

5/22/2019 05:08:19 pm

2nd

5/22/2019 06:42:46 pm

Breaking a controller
Eating food
Melting ice
Burning wood
Burning paper
Cutting paper
Combining salt and water
Coke and mentos

Annabelle

5/22/2019 07:39:22 pm

Physical Changes:
Breaking a controller
Melting ice
Cutting paper
Combining salt and water

Chemical Changes:
Eating food
Burning wood
Burning paper
Coke and mentos

5/22/2019 09:39:25 pm

@Annabelle- Nice job categories the answers! Great idea!

Kaden

5/22/2019 05:13:15 pm

3rd

Jafeth

5/22/2019 05:26:17 pm

5/22/2019 05:56:26 pm

paper burning
mixing water and oil
mixing hot water and cold water
braking a lego structure down
braking glass
popping a balloon
water getting frozen
getting a pen out of a box

Krizia

5/22/2019 07:54:29 pm

Chemical
Physical
Physical
Physical
Physical
Physical
Physical
Physical

Hailey Im

5/22/2019 05:53:30 pm

ice melting
paper crumpling
boiling water
crushing a can

digesting food
burning wood
cooking an egg
baking a cake

5/22/2019 05:54:22 pm

1st side is physical change and 2nd side is chemical change.

Vivian

5/22/2019 06:01:28 pm

chemical change
-baking a cookie
-burning plastic
-making a smoothie
-water+food dye

physical change
-melting ice
-water+salt
-throwing a shoe
-recycling

5/22/2019 09:40:16 pm

@Vivian- Great work categorizing your answers! I like that:)

5/22/2019 09:43:48 pm

@Vivian- Wait! is this your list or is it answers to another post?

nick volokh

5/22/2019 06:41:12 pm

Butter melts
crushing a can
Breaking a glass
water evaporates

rust
fermentation
burn
tarnish

5/22/2019 06:57:03 pm

Chemical changes:
-> Digesting food
-> Burning paper
-> Cooking an egg
-> Iron rusting

Physical changes:
-> Ice melting
-> Crumpling paper
-> Salt + Water
-> Chewing food

Mr. Fishet

5/22/2019 09:33:19 pm

Joseph needs answers!

5/22/2019 09:42:54 pm

@Joseph- Are these the answers to another student or is this your list?

5/22/2019 07:12:10 pm

Rust forming
Sweating
Freezing water
Cutting a piece of paper
Germination of seed
Burning wood
Cutting hair
Baking a cake

Mountain

5/22/2019 07:21:12 pm

Rust forming: both
Sweating: chemical
Freezing water: physical
Cutting a piece of paper: physical
Germination of seed: both?
Burning wood: chemical
Cutting hair: physical
Baking cake: chemical

Ester

5/22/2019 07:40:23 pm

chemical
physical
physical
physical
chemical
chemical
physical
chemical

JESS

5/22/2019 10:11:47 pm

i really like your examples sophie :)

5/22/2019 07:18:52 pm

Ripping a piece of paper
Coke and mentos
Boiling water
Freezing water
Adding salt to water
Breaking glass
Digesting food
Oil and water

Taya

5/22/2019 07:23:29 pm

Physical
Cemical
Phisical
Phisical
Phisical
Phisical
Cemical
Phisical

5/22/2019 07:19:52 pm

the prosses of stepping on grass
the prosses of freezing
the prosses of mixing water with salt
the prosess of mixing water with food colouring
the prosses of baking a cake
the prosses of burning paper
the prosses of stiching
the prosess of mixing red paint with blue paint

5/22/2019 09:33:50 pm

Taya needs answers!

5/22/2019 07:25:13 pm

Burning Paper
Freezing Water
Ripping Paper
Vinegar and Baking Soda
Ice Melting
Alka-Seltzer
Dissolving Salt In Water
Food Breaking Down By Stomach Acid

5/22/2019 07:44:12 pm

I meant to say alka seltzer dissolved in water.

5/22/2019 09:34:11 pm

Answers please!

5/22/2019 07:37:29 pm

dissolving medicine (tablet)
powdered juice in water
ripping paper
breaking a wall
seasoning in soup
burning styrofoam
cutting in half metal
taking a bite of an apple

Vincent Qi

5/22/2019 09:16:01 pm

Chemical or physical. Dissolving something is always physical, but using an acid changes its properties.

Physical. Dissolved substances can always be obtained back from either filter, evaporation or other matter changes.

Physical

Physical

Physical

Chemical

Physical. Did you mean: cutting metal in half"?

Physical or Chemical. Physical is its only taking a bite. Chemical is the acids break down the composition.

Nice work. Try to specify some of your examples next time, such as the apple one.

5/22/2019 08:15:59 pm

Opening a water bottle
Digesting food
Dying your hair (with bleach)
Freezing ice
Bread molding
Tearing apart a book
Inflating a balloon
Lighting a match

5/22/2019 09:31:21 pm

Answers needed here!

Owen

5/22/2019 08:21:46 pm

Burned paper
digesting food
ripped pants
broken phone
burning finger
a bite of an apple
folding a paper
ice melting

5/22/2019 09:31:53 pm

Answers needed!

ivan

5/22/2019 09:58:00 pm

Burned paper - chemical
digesting food - chemical
ripped pants - physical
broken phone - physical
burning finger - chemical
a bite of an apple - physical
folding a paper - physical
ice melting - physical

Matthew

5/23/2019 07:54:55 pm

Chemical
Chemical
Physical
Physical
Chemical
Physical
Physical
Chemical

5/22/2019 08:22:23 pm

Boiling water
Getting a tattoo
Backing soda and water
H+0=h20
Drawing on a paper
Getting sunburnt
Making a fire

5/22/2019 09:34:48 pm

Answer these questions for Sarah!

Jessica

5/22/2019 09:49:44 pm

PHYSICAL:
- getting a tattoo
- H20
- drawing on paper
- baking soda and water
CHEMICAL:
- making a . fire
- getting sunburnt

boiling water?

5/22/2019 09:09:19 pm

Sawing a boat in half.
Microwaving food.
Sharpening a pencil.
Washing your clothes.
A working nuclear reactor.
Dying your hair.
Poaching an egg.
Dynamite=Boom
The filament of a light bulb being used out.

5/22/2019 09:35:14 pm

Vincent needs someone to answer these!

Jorge

5/22/2019 10:57:50 pm

-Phil swift
I might get some wrong:
PHYSICAL
CHEMICAL
CHEMICAL
??????????PHYSYCAL????????????
CHEMICAL-bleaching
PHYSICAL?
CHEMICAL
CHEMICAL

5/22/2019 09:36:35 pm

let’s get SUPPORTING our classmates Div. 1! We need your help! Thank You:)

5/22/2019 09:47:15 pm

@ EVERYONE- Just to clarify you were supposed to post a list of changes and another student needs to identify which of the changes on your list are chemical and which are physical changes!

You DO NOT identify which changes are physical or chemical on your own list!

5/22/2019 10:07:37 pm

food color and water
adding mentos to coke
melting ice
breaking your phone
making a smoothie
chewing gum
cutting paper
boiling an egg

Tom

5/23/2019 08:01:57 am

CHEMICAL
CHEMICAL
PHYSICAL
PHYSICAL
CHEMICAL
PHYSICAL
PHYSICAL
CHEMICAL

5/22/2019 10:07:43 pm

- sawing a piece of wood
- crumpling a piece of paper
- sweating
- cutting your nails
- breaking a glass bottle
- mixing the eggwhite and the egg yolk of an egg
- food being broken down in your stomach
- burning paper

5/22/2019 10:55:00 pm

PHYSICAL
PHYSICAL
CHEMICAL (I don't think your skin can suck sweat back)
PHYSICAL
PHYSICAL
PHYSICAL
CHEMICAL
CHEMICAL

5/22/2019 10:53:11 pm

Baking a cake
Exploding dynamite
Chewing 5 gum (stimulate your senses)
Making a smoothie with a blender
Leaving the ice cream outside (it melted)
Burning a house
Mixing food coloring
Melting a plastic cup

5/23/2019 07:57:48 am

Coke and milk
Breaking a bone
Food being digested
Ripping paper
Meteor hitting land
House on fire
Infection spreading
Food colouring into water

5/23/2019 08:07:59 pm

Cracking my hand
Water evaporating
Food digesting
Cracking peanuts
Pouring milk in cereal
Folding paper
Ripping a plush toy

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chemical and physical changes

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