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HintAnswer
When 2 materials rub together and transfer electrons, the result is a net-static charge on each material
Name element 15
A gauge to measure the energy in electrons in the circuit. Placed in parallel with a load. Requires two readings to calculate
They consist of two non-metals and are related to covalent bonds
Increase of toxin concentrations as they go up in trophic levels
A material in which electrons can somewhat easily pass through
Substance’s ability to be made into a flat sheet
Ingestion of material (usually toxins) in an organism faster than it can be eliminated
Name element 16
The speed at which electrons flow past a certain point
Foundation of food cycles. Harvest natural sources of energy such as sunlight to produce life sustaining materials
Describes the feel of a substance
A positively or negatively charged atom or molecule
Laws of Attraction: Similar charges _________?
Reactive metals. Cations in their ionic forms (1+) (Lithium, Sodium, Potassium, Rubidium, Cesium, Francium).
What happens when a material is mixed with acid
Ability to catch on fire and burn in oxygen
Mass/ Volume, how compact something is
List of materials organized by their ability to hold onto electrons
Chemical bonds that form between oppositely charged ions
The average distance between the sun and an object that is orbiting the Sun
What happens when a material is exposed to oxygen
An element is not shiny, malleable or ductile as metals are. Poor conductors of electricity and heat. (Nitrogen, Oxygen, Phosphorus and Sulfur)
Laws of Attraction: Neutral and ________ do nothing.
Ability of an ecosystem to sustain a population
Name element 18
Reactive elements that are toxic, non-metals. Only need one electron to have filled valence shells
Anything that has mass and takes up volume, can exist as a solid, liquid or gas
Name element 20
A gauge to measure the amount of electrons in the circuit. Placed in series with a load
Materials that hold onto their electrons very strongly
consumes hydrogen much faster than low-mass stars, around 10 billion years. When they use up all their hydrogen, the core collapses, contracts and the temperature rises.
The state of shining by reflecting light
When a substance breaks down into smaller parts
Relationship between two species in which one kills and consumes the other
Occurs when an object is affected by an induced charge separation and is then grounded on the other side, resulting in a permanent static charge once the ground is disconnected
A device that detects the presence of an electric charge
Laws of Attraction: Neutral objects _______ charged objects.
Laws of Attraction: Opposite charges _______?
Process that releases energy from organic molecules, especially carbohydrates, in the absence of oxygen
A negatively charged subatomic particle
Resistance of a fluid to flow
An electric charge that tends to stay on the surface of an object, rather than flowing away quickly
HintAnswer
Phase 1 in Sigmoidal Growth: A delay from exponential growth due to reproductivity
Name element 6
Name element 2
Name element 17
Name element 4
Ability to dissolve in another matter
Something’s ability to conduct heat/electricity
Electrons on the outermost shell of an atom
Name element 1
Atomic Mass - Atomic number
Letters for the calculation of voltage in a pyramid
Name element 12
isms of an ecological food chain that receive energy by consuming other organisms
Letters for the calculation of current in a pyramid
Abiotic and biotic factors interacting with one another
Name element 11
A characteristic of a substance that can be observed or measured without changing the actual substance
Total useful energy output divided by Total useful energy input x 100%
A star with 12 or more solar masses is considered a __________?
Have less mass than the sun, they lose significant mass as they consume their hydrogen over a period that can be as long as 100 billion years.
Group of organisms of one species with the ability to reproduce and who are living in the same place and time
Name element 8
-The distance from the earth to the sun, mostly used in large measurements of distance within our galaxy. AU = 149,597,871 kilometers
Materials that hold onto their electrons very closely
Chemical bonds in which one or more pairs of electrons are shared by two atoms
Name element 3
Name element 14
The Earth rotates at a constant _____degree angle.
The energy in electrons, also called potential difference
A unit of measurement for stars and galaxies. Our Sun is 1 solar mass
Type of circuit where the current has multiple paths to take
A massive explosion in which the entire outer portion of a star is blown off
Name element 5
Life cycle with P
A category of organisms defined by the way they receive their energy
Life cycle with C
Relationship involving an organism whose niche is dependent on close association with a larger host organism. The host is usually harmed from the relationship
A star so dense that only neutrons can exist in the core
Metals right beside the alkali metals or group 2. Slightly less reactive than alkali metals, but the second most reactive elements in the periodic table. Cations in their ionic for
What happens when 2 chemicals mix
Occurs when negative charges collect at the bottom of a cloud. This repels the negative charges in the ground which in turn repel the positive charges in the cloud because of the p
A form of energy that is a result of the interaction between charged particles, such as electrons and protons
A star's total energy output per second; its power in joules per second (J/s)
HintAnswer
A particle that is neither positively, nor negatively charged
If a star began with around 12-15 solar masses, its core will eventually shrink to around 20 km in diameter. The pressure will be so great it will become a __________?
Type of circuit where the current only has 1 path to take
Ability to be stretched into wires
Variants of atoms of elements which have an irregular number of neutrons
Phase 2 in Sigmoidal Growth:Population begins to grow rapidly (exponentially)
A rod that is grounded, used to protect buildings from lightning strikes
When contact is made between a charged object and a neutral object, the charge on the charged object transfers to the neutral one, resulting in both objects having that same charge
Break down dead plants and animals as well as waste matter
When a charged object touches a ________, like the Earth, the object becomes neutral.
How hard or soft something is
Letters for the calculation of resistance in a pyramid
If the material is either solid, liquid or a gas
Relationship in which one species benefits while the other is left unaffected
No. of protons
Relationship between two species in which both species benefit
Name element 13
Describes how a shortage in organisms at the base of the food chain causes population decline in higher trophic levels
No. of protons + no. of neutrons
The distance light travels in 1 year, equivalent to about 63,000 AU or 9.5 x 10^12 kilometers
A small, dim, hot star that takes tens of billions of years to cooldown, which will eventually become a black dwarf, however the universe is not old enough to contain any black dwa
Name element 19
A positively charged subatomic particle
have the properties of both metals and non-metals. They are not in just one group in the periodic table. (Carbon and silicon)
Stable elements due to their full valence shells
Any friction met in the circuit either by loads or by wires. Slows down the flow of electrons
Describes how an abundance of prey increases the population of their predators
Name element 9
Name element 7
Life cycle with N
Name element 10
Compounds made of oppositely charged ions
The magnitude of a star that we would observe if the star were placed 32.6 light years away from Earth
role and function of an organism or species within an ecosystem
Oxygen (O2) + glucose (C6H12O6) = water (H2O) + carbon dioxide (CO2)
Phase 3 in Sigmoidal Growth:Resources become scarce, the population is still growing, but the reproductive rate has dropped
Sunlight + carbon dioxide (CO2) + water (H2O) = oxygen (O2) + glucose (C6H12O6) + chemical energy
Features that can be observed when a substance changes to become a new substance
Phase 4 in Sigmoidal Growth:All available resources being used, population has reached equilibrium (birth & death rates about equal) and the ecosystem’s carrying capacity
Factor of the environment that limits the growth, distribution or population of organisms within an ecosystem
Life cycle with W
Different ecosystems in a given area. Contains common features throughout
Group of populations interacting with one another

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