Here are the answers to fill in the blanks on your worksheet, organized by section.
Top Section: Definitions
*
Chemistry is the science concerned with the properties, composition, and behaviour of matter.
*
Matter is anything that has mass and occupies space.
*
Mass is the amount of matter contained in a thing. Usually the mass of common things is measured in
grams or
kilograms.
*
Properties are the qualities of a thing, especially those qualities common to a group of things. The relationship between matter and its properties is a very important aspect of chemistry.
Middle Section: Physical vs Chemical Properties
* A
physical property of a substance is a property that can be found without creating a new substance.
* *For example:*
Color, shape, density, or melting point. (You can write any of these).
* A
chemical property is the ability of a substance to undergo chemical change /
reaction and change into a
new substance.
* *For example:*
Flammability (ability to burn), rusting, or toxicity.
"Physical Properties versus Chemical Properties" Box
* Recall,
Physical properties describe
physical changes, which are changes of
state or form. Physical properties also describe the physical
appearance of a material.
*
Chemical properties describe chemical
changes. Chemical changes are those in which a new substance(s) or species is formed. Chemical properties also describe the tendency of a chemical to
react.
* They include a chemical's:
*
flammability
*
toxicity
*
acidity
*
reactivity (or stability)
Bottom Section: Specific Physical Properties
*
-Hardness: Resistance to being scratched or indented.
*
-Malleability: Ability to be hammered or pressed into thin sheets without breaking.
*
-Ductility: Ability to be drawn out into a thin wire.
*
-Lustre: How shiny a material is; how it reflects light.
*
-Viscosity: A measure of a fluid's resistance to flow (thickness).
*
-Diffusion: The movement of particles from an area of high concentration to low concentration.
Final Paragraph Examples
* For example, A material can be classified as
opaque,
transparent, or translucent by how it interacts with light.
* Other physical properties you may have learned about include
mass, density,
volume, and surface tension.
Parent Tip: Review the logic above to help your child master the concept of physical vs chemical change worksheet answers.
