Ill give you more than 2.putting water in to the refrigerator to freeze it
cutting wood
dropping plates, or cups
chopping fruits or vegetables
tearing paper
breaking items
chewing pencils
peeling potatoes
Popping a balloon, chopping wood, tearing, folding, or crumpling paper. Pretty much anything that doesn't make a new substance.
1. Freezing water
2. condensation of water
You didnt change the chemical makeup, but rather the shape.
could also be a change in color or texture
cracking
splintering
melting or cutting
Freezing and thawing
freezing and melting are physical changes
Because there are currently four known states of matter, one change between each of these states yields three different types of state change. One is the change from a solid to a liquid, which we will call "melting." The second is the change from a liquid to a gas, which we call "vaporization." The third is the change from a gas to a plasma. There are terms for these changes in the reverse direction, and sublimation describes the change from a solid to a gas with no intermediate liquid phase.
CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.
When a substance changes phase, this is a physical changerather than a chemical change. When water freezes to become ice, or when ice melts to become water, its all physical.
physical change
freezing and melting are physical changes
1. Melting ice 2. Boiling water 3. Freezing water A physical change is when something goes from one state of matter to another Solid To Liquid, Gas to Liquid, Solid to Gas, Gas to Plasma, Plasma to liquid, Etc...
1. breaking a rock in half 2. ripping a piece of paper
The physical properties refer to the change in it's physical state like "shape", " size" etc. physical changes involve only the change of physical state. No heat or light is involved. Normally we can get the original form of state after the process for example :- 1) change in shape of balloon changes when we blow air into it 2) the paper can be crush and then the shape can be regained. 3) when the wax melts it's shape can be regained by solidification
euglena
Ice melting, water boiling and cutting paper. It usually has to do with changing the shape or state of the matter.
Because there are currently four known states of matter, one change between each of these states yields three different types of state change. One is the change from a solid to a liquid, which we will call "melting." The second is the change from a liquid to a gas, which we call "vaporization." The third is the change from a gas to a plasma. There are terms for these changes in the reverse direction, and sublimation describes the change from a solid to a gas with no intermediate liquid phase.
Like and as 1. as red as a rose. 2. bright like the sun.
1. First step: a physical change 2. Second step: a chemical change
CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.
yes they are one of the 7 physical properties===========================Would they not be 2 of the 7 ?
You know if it's a chemical chagewhen two or more of the following have happened: 1. a precipitate has formed(bubbles) 2. heat is absorbed or released 3. there is a change in odor 4. there is a change in colour 5. the change is diffiult to reverse 6. starting material is used up 7. a material with new properties is formed A physical change may only be a change in state and the change should be easy to reverse