Physical and Chemical Properties
Name 3 Physical Properties.
(Extra Credit for candy: guess what emoji is in the answer)
Mass, weight, volume, density, melting/boiling point, solubility, magnetic force, state of matter, color.
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What is an example of physical change?
A. Metal rusting,
B. silver tarnishing,
C. ice melting,
D. paper burning
C. ice melting
Define chemical property.
Characteristic that cannot be observed without altering the subject.
When copper is bent around iron is this an example of a physical or chemical change?
Physical Change
Explain the difference between physical and chemical properties.
Physical properties change the outward makeup rather than the molecules within and can be experienced with the 5 senses. Whereas chemical properties change the molecule within and their chemical makeup.
What is an example of a chemical property?
A. color,
B. mass,
C. density,
D. ability to burn?
D. IAbility to burn.
Which is a clue that indicates chemical change?
A. Change in color
B. Change in shape
C. Change in energy
D. Change in order
D. Change in order
Define chemical change.
Change in which the composition of a subject changes.
Explain why casting silver into a mold is a physical change.
Because the silver has not changed chemically it is just being shaped differently and shape is a physical property.
Chemical Change
What does weight depend on?
Mass and Density.
When there is a forest fire is this an example of a chemical or physical change?
Chemical Change.
Define the following solid, liquid, and gas.
Solid: Matter with definite volume as consistent shape; has tightly packed particles that move mainly by vibrating.
Liquid: Matter with definite volume but no consistent shape that can flow from one place to another.
Gas: Matter that doesn’t have a definite shape or volume; has particles that move at high speeds in all directions.
When milk goes bad is this and example of chemical or physical change?
Chemical Change.
When food rots is this an example of a physical or chemical change?
Chemical Change
Why is color a physical property?
Because color only changes the way an object looks rather than its chemical makeup.
If a tree were to be fallen and a wood carver whittled it into a statue is this a chemical or physical change?
Physical Change.
Define physical change.
Change in which the form or appearance of matter changes but not its composition.
When sugar is dissolved into water is this an example of chemical or physical change?
(Extra Credit for candy: guess what emoji is in the answer)
Physical Change
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Which one is a chemical change?
Neither
What is volume?
Volume is the amount of space that a substance or object occupies, or that is enclosed within a container.
Which is an example of chemical change?
A. Water Freezes
B. Wood is carved
C. Bread is baked
D. Wire is Bent
C. Bread is Baked
Define physical property.
Characteristic that can be observed using the 5 senses without changing the composition of the substance.
When sand is mixed with water is this an example of a physical or chemical change?
Physical Change.
What are indications of a chemical change?