Physical or Chemical Physical or Chemical ChangesChanges

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Mrs. Kapela’s ClassMrs. Kapela’s Class

Boiling Boiling WaterWater

This is a This is a physical physical change change because no because no new new substance is substance is formed, and it formed, and it is still His still H22O. O. Nick and Jacob

Alka Seltzer in Alka Seltzer in SodaSoda

Our experimentOur experimentis a chemical is a chemical change because change because the Alka-seltzer the Alka-seltzer can not go back to can not go back to being the same being the same and because there and because there is a new substance is a new substance which is the fizz which is the fizz (CO(CO22).).Drake and Dominique

Breaking a Breaking a StickStick

This is a This is a physical physical change change because there because there is no new is no new substance. It substance. It is still wood is still wood just smaller.just smaller.

Gianni and Phillip

Burning PaperBurning Paper

It is a chemical It is a chemical change because change because the new the new substance is ash substance is ash and can not be and can not be reversed back reversed back to it’s original to it’s original shape. shape.

Connor and Lyndsey

Melting WaxMelting Wax

Melting Wax is a Melting Wax is a physical change physical change because it is still because it is still wax. The wax only wax. The wax only changed state changed state from a solid to a from a solid to a liquid. Also there liquid. Also there is no new is no new substance.substance.Eric and Paige

Milk Turning Milk Turning SourSour

It’s a chemical It’s a chemical change change because you because you can not can not change it back change it back to fresh milk to fresh milk and it is now a and it is now a new new substance.substance.Jianna and Christan

Mixing Colored Mixing Colored WaterWater

Mixing colored Mixing colored water is a water is a physical change. physical change. We know this We know this because even if because even if you change the you change the color of the color of the water it’s still water it’s still just water. It just water. It doesn’t make a doesn’t make a new substance. new substance.

Kenia and Colin

Rusting Steel Rusting Steel Wool Wool

Rusting steel Rusting steel wool is a wool is a chemical change chemical change because the steel because the steel wool can’t go wool can’t go back to just steel back to just steel wool after it is wool after it is rusted and the rusted and the steel changed to steel changed to rust.rust. Dylan and Alexa

Stretching Stretching ClayClay

Stretching clay Stretching clay is a physical is a physical change because change because there is no new there is no new substance substance formed and it formed and it can be can be stretched back stretched back to it’s original to it’s original position.position.

David and Tiffany

Tearing Tearing PaperPaper

This change is This change is a physical a physical changechange

because it’s because it’s still the same still the same substance substance when you when you ripped the ripped the paper.paper.Zachary and Ian

Vinegar and Baking Vinegar and Baking SodaSoda

This is a This is a chemical chemical change change because there because there is a new is a new substance substance which is fizz which is fizz (CO(CO22) and it ) and it can never go can never go back to regular back to regular baking soda. baking soda.

Nicole and Sharnell

Yeast Yeast BubblingBubbling

Before it was Before it was yeast and water yeast and water then it started to then it started to bubble. The bubble. The bubbles were bubbles were COCO22 which was which was new matter. So new matter. So that is called a that is called a chemical chemical change. change.

Isabelle and Dale

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Chemical Chemical Change show!Change show!