Pure substances and mixtures
What is a pure substance?
Matter that contains only one type of particle.
What is secondary succession?
Secondary succession is when an ecosystem is recreated after it already existed and was destroyed.
What happens to particles when they get cooled?
They start to move more slowly.
How many planets are there in our solar system?
8
What is mass?
Mass is the quantity of matter in an object.
What is a mixture?
Matter that contains two or more pure substances mixed together.
What is primary succession?
Primary succession is when fungi and other organisms create an ecosystem where nothing has ever lived.
What happens to particles when they get hot?
They start to move faster.
What are the names of the planets in the solar system?
Mercury, venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What are the 4 internal forces?
Tension, compression, torsion, and shear.
What is a solute and solvent?
Solute is the smaller part of a solution and solvent is the bigger part.
What is an invasive species?
An invasive species is a species that is introduced to a new area that it has never existed before
What is the energy of motion?
Kinetic energy.
What is the closest planet to the sun?
Mercury
What is a non contact force and applied force?
Non contact- a force applied to an object by another body that is not in direct contact with it.
Applied force- Force which is applied to an object by another object.
What are the 3 main steps of sewage treatment?
Primary, secondary, and tertiary.
What's the difference between a detritivore and decomposer?
Detritivores eat waste. While decomposers decompose the waste into simple substances.
What are the 3 ways thermal energy is transferred?
Convection, Radiation, conduction.
What planets have a ring in our solar system?
Jupiter, Saturn, Neptune, Uranus
What is a dead load, live load, and a dynamic load?
Dead Load:A dead load is the weight of the structure itself.
A Live Load:A live load is the weight of what the structure is carrying
Dynamic Load:A dynamic load is the weight of forces other than the force of gravity, such as wind.
What is distillation?
The action of purifying a liquid by a process of heating and cooling.
What is an ecological footprint?
An ecological footprint is an estimate of the amount of land and water needed to regenerate the resources a human consumes.
What are the 5 rules of particle theory?
1. All matter is made up of tiny particles known as atoms. 2. Particles of matter are constantly in motion. 3. Particles of matter attract each other. 4. Particles of matter have spaces between them. 5. Temperature increases, particles of matter move faster
How many constellations are there?
88
What two things does a structure need to be stable?
a center of gravity close to the ground, and a wide base.