Flashcards
Physical and chemical changes
Cards in this deck (18)
- 1What is a physical change?It is a change in which no new substance is made
- 2What is a chemical change?A change in which a new substance is made
- 3What is the simplest example of a physical change?A change wich changes the shape or form of a substance
- 4Give an exampleBending a metal rod
- 5What is expansion?When the volume of an object increases but its density decreases
- 6What is contraction?When the volume of an object decreases but the density increases
- 7What is melting?Changing from solid to liquid
- 8What is evaporation?Changing of liquid to gas
- 9What is condensation?changing of gas to liquid
- 10What is solidification?Changing of liquid to solid
- 11What is sublimation?Changing directly from solid to gas.
- 12What is deposition?Changing directly from gas to solid
- 13What is a solute?The solid in a solution
- 14What is a solvent?The liquid in a solution
- 15What is a solution?When a solid in a liquid is broke down into particles that are so small that they are invisible
- 16What is it called when you evaporate the solvent and the solute is left behind?Crystallisation
- 17What are the signs of a chemical change?Seeing a change in colour
smelling a gas or seeing bubbles
seeing a new solid forming in a clear solution
Seeing light or feeling a change in temperature - 18is crushing a physical or chemical change?Physical
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- Flashcards on Physical and chemical changes, created by Khalid Badaso on 03/06/2016.
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- Khalid Badaso
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