The faster the temperature, the _______ the particles move.
What is faster
100
Something that describes matter.
What is a property
100
Starting materials in a chemical reaction
What is Reactant
100
Matter that always has the same composition and properties.
What is Pure Substance
200
Mostly solid substances are not mixed will
What is heterogeneous
200
Matter is made up of _____ and _____ that act as tiny particles.
What is atoms and molecules.
200
Formula for measuring Density
What is Mass divided by volume.
200
The substance produced by a chemical reaction
What is Product
200
Classifications of substances.
What is Elements, Compounds, and Molecules.
300
Example of immiscible mixture
What is oil & water
300
Energy can be thought of as the _________________.
What is the ability to change and move matter.
300
Describes the way a substance reacts when it changes.
What is chemical properties.
300
When a substance changes into one or more new substances
What is Chemical Change
300
Types of mixtures
What is Heterogeneous, Homogeneous, Immiscible, and Miscible
400
Contains some particles that are intermediate in size between the small and large particles. Cannot be separated or filtered.
What is a colloid
400
The two laws of conservation and what they mean.
What is Conservation of Mass, and Conservation of Energy. Mass cannot be created nor destroyed, and energy cannot be created nor destroyed
400
Piece of wood has a mass of 35g and a volume of 80cm, what is it's density?
Does it float on water?
What is 0.44 g/cm, and it floats.
400
signs of chemical change
What is Color change, odor, release of heat, forms precipitation, and gas created
400
Ways to separate mixtures.
Examples.
What is Distillation, and Filtration.
Boiling saltwater to make freshwater; strainers, filters, screens.
500
Two methods to separating mixtures and their examples.
What is Distillation and Filtration. What is boiling saltwater to make freshwater and strainers/filters/screens.
500
Name all of the phase changes.
What is Melting, Evaporating, Deposition, Sublimation, Condensation, and Freezing.
500
All of the physical properties.
What is Conductivity, Viscosity, Malleability, Hardness, and Density
500
When a substances appearance changes-it looks different-but the atoms are not changed or rearranged.
Examples.
What is Physical change.
Cutting grass, Ice cubes melting, Braiding hair, Dissolving salt in water.
500
Classifications of mixtures and their definitions.
What is Solution-substances that dissolve and form a homogeneous mixture
Suspension- Heterogenous mixture that separates into layers over time
Colloid-Contains some particles that are intermediate in size between the small and large particles; cannot be separated or filtered.