Show:
Measuring Matter
Physical Properties
Mixtures and Solutions
States of Matter
Atoms/Chemical and Physical Changes
100
The amount of space an object takes up.
Volume
100
Define "physical property"
A characteristic of a substance that can be observed or measured without changing the substance’s identity. (Anything I can taste, touch, smell, hear, see, or measure).
100
The substance that is being dissolved
Solute
100
Define "state of matter"
The form of a substance: solid, liquid, or gas.
100
If an object changes in SIZE, SHAPE, STATE OF MATTER, or DISSOLVES, that is a _____________ change
physical
200
Anything that has volume and mass
Matter
200
A state of matter in which the substance has a definite volume and shape.
Solid
200
The substance that dissolves another substance
Solvent
200
Liquid --> Solid
Freezing
200
If an object changes in COLOR, TEMPERATURE (without electricity), BUBBLES (besides water boiling), or BURNS TO ASHES, then that is a _____________ change.
chemical change
300
The amount of matter in a certain space (equals mass/volume)
Density
300
A state of matter in which the substance does not have a definite volume or shape.
Gas
300
The ability of a solvent to dissolve a certain amount of solute.
Solubility
300
Solid --> Liquid
Melting
300
Rust is an example of a ____________ change. Tell me WHY
chemical; because there is a change in color
400
What is the difference between mass and weight?
Weight changes depending on gravity. Mass stays the same, even if gravity changes. Weight is measured with a SCALE. Mass is measured with a BALANCE.
400
A state of matter in which the substance has a definite volume, but not a definite shape.
Liquid
400
The amount of solute that is dissolved into the solvent is called:
Concentration
400
Liquid --> Gas
Vaporization/Evaporation
400
Cutting my hair is an example of a ____________ change. Tell me why.
physical; because there is a change in size (length).
500
Compare how I would measure the volume of a shoe box and how I would measure the volume of a strangely shaped object (ex: a plastic dinosaur).
Volume of a shoe box= length x width x height Volume of a strangely shaped object= water displacement (how much the volume of water changes when the object is placed in the water)
500
Give 3 physical properties of an apple.
Red, green, or yellow Crunchy Sweet/sour Round/oval in shape Organic (living, or used to be living) etc.
500
Which one is the mixture, and which one is the solution, and why? sand and water salt and water
sand and water = mixture (because I can separate it with my hands) salt and water= solution (because I cannot separate it with my hands. I must evaporate the water to separate the water from the salt)
500
Gas --> Liquid
Condensation
500
Give your own examples of a chemical change AND a physical change
chemical: paper burning, toasting a marshmallow, combining baking soda and vinegar, leaves changing color in the fall. physical: crumpling paper, cutting yarn, boiling water, freezing water, dissolving sugar into water.