A physical property. The temperature at which a substance transitions between the liquid andgaseousstate.
Chemical property
How a substance behaves in a chemicalreaction.
Physical property
Can be measured or observed without changing a substance into something else.
Particle
A small unit of matter
Compressibility
A physical property. The ability of a substance to be squashed. Gases can be compressed, but solids and liquids cannot.
Kinetic energy
Energy of motion.
Mass
Amount of matter in a substance. Usually measured in grams or kilograms.
Density
Mass, per unit of volume or, the amount of matter contained within a particular amount of space.
Melting point
A physical property. The temperature at which a substance transitions between a liquid and solid state.
Particle model
Theory that all matter is made up of very tiny particles. The arrangement and properties of particles is influenced by the amount of kinetic energy.
Volume
How much space an object take up. Usually measured in millilitres or litres.
Solid
A substance characterised by properties, such as having a fixed shape, the inability to be compressed and its particles held close together.
Melting
The process of a solid changing state into a liquid, by heating.
Evaporation
The process of a liquid changing state into a gas, by heating.
Condensation
The process of a gas changing state into a liquid, by cooling.
Solidification
The process of a liquid changing state into a solid, by cooling.
Sublimation
The process of a solid changing state into a gas, by heating.
Deposition
The process of a gas changing into a solid, by cooling.
Liquid
A substance characterised by properties, such as being able to change its shape to fit its container, the inability to be compressed and its particles relatively close together, but able to flow over one another.
Gas
A substance characterised by properties, such as being able to change its shape to fill its container, the ability to be compressed and its particles spread apart.
Liquid
A state of matter characterized by a definite volume but no definite shape
Change of state
A transition from one state of matter to another
Solid
A state of matter characterized by a definite shape and volume
Heating
The addition of heat energy to a substance
Melting
The process of a solid changing state into a liquid, which occurs due to an increase in the temperature of the solid
Scientific Report Structure
-Aim
-Hypothesis
-Materials/Apparatus
-Risk Assessment/Safety Precautions
- Methods
-Results
-Disscussion
Branches of Science
biology, chemistry, physics and geology
Proper Equipment in the Lab
Apron, goggles and gloves (depends).
Independent variable
An independent variable is the variable you manipulate, control, or vary in an experimental study to explore its effects. It's called "independent" because it's not influenced by any other variables in the study.
Dependent variable
A dependent variable is the variable that changes as a result of the independent variable manipulation. It's the outcome you're interested in measuring, and it "depends" on your independent variable.
Bunsen burner
used to heat substances
Beaker
An open cylindrical container with a pouring lip; used for mixing larger amounts of substances
Conical flask
To hold liquids that need to be swirled around or that have been filtered
Test Tube
a thin glass tube closed at one end, used to hold small amounts of material for laboratory testing or experiments.